php
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LAJP名称含义
LAJP名称来源于著名的LAMP(Linux,Apache,Mysql,Php)，LAMP是轻量级的开发Web程序的环境，在Internet上有广泛的应用，但对于企业开发，如金融、电信领域，LAMP略显能力不足，而这些领域通常是Java(J2EE)的势力范围。LAJP是将LAMP的简便性和Java高端能力结合起来的一项技术，LAJP中的J指的是Java，由于数据库厂商对Java的广泛支持，数据库也不再特别限制为Mysql。
LAJP可以理解为PHP和Java相结合的技术，也可称为PHP和Java混合编程技术，或者PHP调用Java服务的技术，也有人习惯称之为前台PHP后台Java的技术框架。
特点
- 优势互补: PHP是非常流行的WEB编程脚本语言，有易学、易用、开发部署效率高的特点，非常适合网页编程；JAVA适合编写具有复杂的业务功能和数据的程序，二者结合可发挥各自优势。
- 高效稳定：Apache+PHP组合可带来优异的WEB服务稳定性，而JAVA可补充如连接池、事物管理、分布式、对象模型等高端特性。
- 创新的通信机制 PHP和Java间的通讯方式采用系统消息队列和Socket两种机制，兼顾通讯效率和平台兼容性。
- 数据类型自动转换机制 PHP数据和Java数据可准确地自动匹配和转换，无须程序员编写解析代码。
- 易用：LAJP安装配置简单，PHP端和JAVA端编程符合各自的编程习惯。
- 轻量级：LAJP架构非常轻量级，除了最基本的PHP和Java环境，不需要任何扩充的、第三方的组件、容器。
LAMP和LAJP的简要对比 LAMP从传统技术架构上看属于2层结构，虽然在php5以后增强了面向对象的能力，有了形成业务逻辑层的语言基础，但对于复杂的企业级WEB应用，php语言能力仍显不足。LAJP继承了LAMP在WEB领域编程的活力，并用java构建业务逻辑层，通过“PHP调用Java的方法”来实现二者间的互通。
php和java的互通
php和java是两种不同的语言，在LAJP架构中二者之间的互通有两种机制。
- 一、消息队列
以操作系统的消息队列为沟通媒介，在通讯过程中php作为客户端调用java端服务。消息队列属于IPC技术(进程间通讯)，php语言中内置了一组函数（msg_send、msg_receive等）可以和System V消息队列通讯，而java中没有相似的方法，因此通过调用底层JNI接口使用C函数来实现。 使用消息队列有以下好处：
- 使php和java保持独立性
- 有极高的传输速度，大于socket
- 相对于socket方式，Java服务端只向本机提供服务(没有对外侦听端口)，相对安全，易于管理。
- 二、Socket
消息队列技术只能适用于Unix/Linux/BSD系统，因此LAJP提供基于TCP/IP的通讯机制，从而适应各种平台。
数据类型转换
PHP和Java各有其语言内部定义的数据类型，当PHP数据传送到Java，或Java数据传送到PHP时，LAJP在内部自动地、准确地对他们进行转换，程序员无需进行任何的解码工作。
详细参看《lajp数据转换示例》 http://code.google.com/p/lajp/wiki/Example
示例
示例程序表现了一个简单的PHP调用Java的程序片段，PHP在调用过程中向Java传递了3个参数，参数类型分别是字符串、数组、对象，Java服务方法返回字符串应答。
- php端程序
<span class="pln"> require_once</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"php_java.php"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//LAJP提供的程序脚本</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//php类，映射到JavaBean类：cn.com.ail.test.Bean</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> cn_com_ail_test_Bean </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"v1"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"v2"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> $p1 </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"a"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//字符串，传给Java方法的第一个参数</span><span class="pln"> $p2 </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//数组，传给Java方法的第二个参数</span><span class="pln"> $p2</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> $p2</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> $p3 </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> cn_com_ail_test_Bean</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//php对象，传给Java方法的第三个参数</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//"lajp_call"是LAJP提供的函数，用来调用java端服务</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//"cn.com.ail.test.Objtest::method1"表示调用java的cn.com.ail.test.Objtest类中的method1方法</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//"$p1,$p2,$p3"是向method1方法传递的3个参数。</span><span class="pln"> $ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"cn.com.ail.test.Objtest::method1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $p1</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $p2</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $p3</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> echo </span><span class="str" style="color: rgb(0, 136, 0);">"返回信息："</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//打印"OK,收到并返回字符串应答"</span>- java端程序
<span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//对应php中$p3的JavaBean（普通的JavaBean）</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> cn</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">com</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ail</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">test</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Bean</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> getA</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setA</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> getB</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setB</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//java端服务</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> cn</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">com</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ail</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">test</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Objtest</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//PHP调用的Java方法（普通的Java方法，LAJP仅要求声明为public static final）</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//php传来的三个参数自动转换为相应的Java数据类型</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> method1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> param1</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">List</span><span class="pln"> param2</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Bean</span><span class="pln"> param3</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"$p1="</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> param1</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">for</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="pln"> param2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">++)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">printf</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"$p2[%i]=%i\n"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Integer</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln">param2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">get</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"$p3->a="</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> param3</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getA</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"$p3->b="</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> param3</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getB</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//返回给PHP的应答字符串</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"OK,收到并返回字符串应答"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span>LAJP帮助文档
LAJP是用来解决PHP和Java通讯的一项技术，在PHP中可以通过"正常"的PHP函数来调用Java的一个方法，如同下面的一个例子：
java(service):
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> addMethod</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> a </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>php(client):
<span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass::addMethod"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo $ret</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//30</span>
LAJP有两个核心能力：
- PHP优雅、高效地调用Java方法的能力
- PHP数据和Java数据合理、自动地转换的能力
在LAJP的当前版本中，使用两种技术进行PHP和Java间的通信，我对它们分别命名为： 消息队列模式 和 socket模式 。它们各自有优缺点，在使用中应根据程序所在环境特点加以选择：
- 消息队列 以System V的消息队列作为PHP和Java间的通信媒介，优点是理论速度快，占用资源较小；缺点是只能使用在支持System V的系统中，可运用于大多数的Unix/Linux/BSD系统，但不能用于windows。
- socket 以TCP/IP作为PHP和Java间的通信媒介，优点是基本无系统限制；缺点是理论速度慢，占用资源较大。
一、LAJP运行环境要求
"消息队列模式"和"socket模式"对运行环境的要求是不同的，下面分别加以阐述：
消息队列模式
环境需要满足System V消息队列的运行：
- 系统 目前常见的Unix/Linux系统都可满足php(Apache)、java的运行，其中大部分默认支持System V消息队列。
- php php需要通过消息队列和java进程通信，按php的说明，php在4.3.0版本以后支持System V消息队列。
- apache 无特殊要求，满足php要求即可。
- java java版本在1.5以后。
- 在Unix/Linux环境中，推荐使用消息队列模式。
socket模式
- 系统 没有限制，很难找到不支持TCP/IP的系统。
- php 按php的说明，php版本>=4.1.0支持socket
- apache 无特殊要求，满足php要求即可。
- java java版本在1.5以后。
- Windows系统只能使用socket模式
在开发过程中可以同时使用这两种模式，比如一般开发者使用Windows环境，而程序部署在Linux系统中，LAJP在模式的配置上和编码无关。
二、LAJP安装与运行
Windows下的LAJP安装配置
请阅读 《图解LAJP在Windows系统上的安装配置》
Unix/Linux下的LAJP安装配置
- 下载 下载Lajp的安装文件，解压后目录结构如下：
<span class="pln">lajp</span><span class="pun" style="color: rgb(102, 102, 0);">安装包</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">jin </span><span class="com" style="color: rgb(136, 0, 0);">//消息队列模式必要的JNI源程序</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">lajp_MsgQ</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">h </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">lajp_MsgQ</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">c </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">make</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">sh </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">php </span><span class="com" style="color: rgb(136, 0, 0);">//PHP端脚本</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">php_java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">php</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">msgq </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">php_java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">php</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">socket </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">test_service</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//Hello World 示例服务程序</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">lajp</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">10.05</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">jar </span><span class="com" style="color: rgb(136, 0, 0);">//LAJP主程序</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">run_msgq</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">sh </span><span class="com" style="color: rgb(136, 0, 0);">//Unix/Linux使用消息队列模式启动脚本</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">run</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">socket</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bat </span><span class="com" style="color: rgb(136, 0, 0);">//windows使用启动脚本</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">|--</span><span class="pln">run</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">socket</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">sh </span><span class="com" style="color: rgb(136, 0, 0);">//Unix/Linux使用socket模式启动脚本</span>
Unix/Linux中运行LAJP依赖以下前提设置
- Apache+php环境 部分发行版本的php默认安装不支持消息队列(System V messages)、信号量(System V semaphore)、共享内存(System V shared memory), 如使用消息队列模式需在编译php时附带编译选项 --enable-sysvsem,--enable-sysvshm和--enable-sysvmsg；如使用socket模式则要检查sockets是否激活，这些可以通过phpinfo()函数来观察。
- java环境 要求Java5.0以上。
Unix/Linux中socket模式的配置运行
Socket模式使用run-socket.sh脚本，运行前确保run-socket.sh有执行权限，在脚本内部可以配置Java服务端口（默认21230），PHP和Java传输字符集（默认UTF-8），classpath等。
Unix/Linux中消息队列模式的配置运行
- 首先配置好c语言编译环境
- 编译JNI 将下载的lajp安装包中的3个源代码文件：lajp_MsgQ.c,lajp_MsgQ.h,make.sh复制到某个目录，确保make.sh有执行权限，按注释要求编辑make.sh
<span class="com" style="color: rgb(136, 0, 0);">#!/bin/sh</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># -----------------------------------------------------------</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># LAJP-JNI 编译脚本 (2009-09 http://code.google.com/p/lajp/)</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 编译环境: Unix/Linux</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 源文件: lajp_MsgQ.c lajp_MsgQ.h</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 目标文件: liblajpmsgq.so</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 编译参数:</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># --share : 编译为动态库</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># -I : 搜索编译JNI需要的.h文件, 注意"/usr/lib/jvm/java-6-sun/"要换成编译环境中</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 的JAVA_HOME路径</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">#</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># liblajpmsgq.so发布 : </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 复制到<java.library.path>中，可通过java程序</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># System.out.println(System.getProperties().getProperty("java.library.path")); </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 获得本机的<java.library.path></span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># -----------------------------------------------------------</span><span class="pln">gcc lajp_MsgQ</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">c </span><span class="pun" style="color: rgb(102, 102, 0);">--</span><span class="pln">share </span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">I</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">I</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">usr</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">jvm</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">6</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">sun</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">include </span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">I</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">usr</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">jvm</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">6</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">sun</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">include</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">linux </span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">o liblajpmsgq</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">so</span>- 编译 ： 执行 ./make.sh
- 部署编译好的liblajpmsgq.so库文件： 如果编译成功，会生成liblajpmsgq.so文件，将它复制到任一个"java.library.path"路径中，"java.library.path"路径可以通过java程序侦测: System.out.println(System.getProperties().getProperty("java.library.path"))
消息队列模式使用run_msgq.sh脚本，运行前确保run_msgq.sh有执行权限，在脚本内部可以配置PHP和Java传输字符集（默认UTF-8），classpath等。
三、LAJP使用注意事项
- Java Java方法如果要做为LAJP的服务方法，必须声明为 public static final
- 数据类型 PHP和Java通过LAJP传输的数据，包括PHP调用时向Java传递的参数，和Java方法的返回值，都需要遵循LAJP数据类型要求。
php语言规范定义了8中数据类型：boolean、int、float、string、array、object、resource、NULL；java语言的数据类型分为2类：基本数据类型和对象类型，基本数据类型有byte、short、int、long、 char、boolean、float、double, 对象类型包括数组、集合、javaBean等。在LAJP架构中，php数据以参数形式传递给Java方法，Java方法的返回值再回传给php调用程序，在调用过程中，php数据“自动”转换为Java数据，反之亦然。
并不是所有数据类型都可以转换，在LAJP中建立了以下转换规则：
表1
phpjava说明布尔booleanboolean 整形intint 浮点floatdouble在php中float和double含义相同字符串stringjava.lang.String 顺序集合array(key:int)java.util.Listphp中array的每个元素的key类型必须是intkey-value集合array(key:string)java.util.Mapphp中array的每个元素的key类型必须是string对象objectJavaBean 空NULLnull详细的数据转换规则请查阅 《LAJP数据转换示例》
四、LAJP基本配置
LAJP只是单纯的PHP和Java传输的中间机制，像Web系统中常见的数据库连接池、JNDI、缓存等需要开发者自己管理。
- 消息队列配置
对于消息队列，有三个系统配置影响其性能：
- MSGMNI 指定系统中消息队列最大数目
- MSGMAX 指定一个消息的最大长度
- MSGMNB 指定在一个消息队列中最大的字节数
一般性的，Linux系统的默认消息队列配置非常可怜，通过查看下面三个文件获得系统配置信息：
- /proc/sys/kernel/msgmni 缺省设置：16
- /proc/sys/kernel/msgmax 缺省设置：8192
- /proc/sys/kernel/msgmnb 缺省设置：16384
<span class="com" style="color: rgb(136, 0, 0);"># /etc/sysctl.conf</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># set message queue 20M</span><span class="pln">kernel</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">msgmnb </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20971520</span><span class="pln">kernel</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">msgmni </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20480</span>
- socket侦听端口配置
在socket模式中，Java端默认的侦听端口是21230，如要修改，有两处：
- php_java.php ： 在下载包中命名为php_java.php.socket
<span class="pln">define</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"LAJP_IP"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"127.0.0.1"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//Java端IP</span><span class="pln">define</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"LAJP_PORT"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">新的端口);</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//Java端侦听端口</span>
- run-socket启动脚本 ： windows中使用run-socket.bat，Unix/Linux中使用run-socket.sh
windows中在run-socket.bat中添加下面两行：
<span class="pln">rem </span><span class="pun" style="color: rgb(102, 102, 0);">设置服务侦听端口</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">set</span><span class="pln"> SERVICE_PORT</span><span class="pun" style="color: rgb(102, 102, 0);">=新的端口</span>
Unix/linux中在run-socket.sh中修改：
<span class="com" style="color: rgb(136, 0, 0);"># 设置服务侦听端口</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> SERVICE_PORT</span><span class="pun" style="color: rgb(102, 102, 0);">=新的端口</span>
- 传输字符集
LAJP中默认的PHP和Java交互字符集是UTF-8，可通过修改启动脚本环境变量变更。
run-socket.bat
<span class="pln">rem </span><span class="pun" style="color: rgb(102, 102, 0);">字符集设置</span><span class="pln"> GBK </span><span class="pun" style="color: rgb(102, 102, 0);">|</span><span class="pln"> UTF</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">8</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">set</span><span class="pln"> CHARSET</span><span class="pun" style="color: rgb(102, 102, 0);">=字符集</span>
run-socket.sh或run-msgq.sh
<span class="com" style="color: rgb(136, 0, 0);"># 字符集设置 GBK|UTF-8</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> CHARSET</span><span class="pun" style="color: rgb(102, 102, 0);">=字符集</span>
配置示例
一般性的使用Java链接数据库需要配置数据源，这里提供一个简单的配置示例，以供参考。
项目：
- 一个简单的Web应用
- 数据库：Mysql
- 数据源：DBCP
run-msgq.sh
<span class="com" style="color: rgb(136, 0, 0);">#!/bin/sh</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># -----------------------------------------------------------</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># LAJP-Java Service 启动脚本 </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># (2009-10 http://code.google.com/p/lajp/)</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># </span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># -----------------------------------------------------------</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">#-----------------------</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">#DBCP配置</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_url</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="str" style="color: rgb(0, 136, 0);">"jdbc:mysql://127.0.0.1:3306/paper?characterEncoding=utf8&zeroDateTimeBehavior=round"</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_username</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln">root</span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_password</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln">root</span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_maxActive</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="lit" style="color: rgb(0, 102, 102);">30</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_maxIdle</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_maxWait</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="lit" style="color: rgb(0, 102, 102);">1000</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_removeAbandoned</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="kwd" style="color: rgb(0, 0, 136);">false</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_removeAbandonedTimeout</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="lit" style="color: rgb(0, 102, 102);">120</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_testOnBorrow</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="kwd" style="color: rgb(0, 0, 136);">true</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_validationQuery</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="str" style="color: rgb(0, 136, 0);">"select 1"</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> DBCP_logAbandoned</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="kwd" style="color: rgb(0, 0, 136);">true</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">#-----------------------</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># java服务中需要的jar文件或classpath路径，如业务程序、第三方jar文件(如log4j等)</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> classpath</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">commons</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">beanutils</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">1.8</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">2.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">commons</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">logging</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">1.1</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">1.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">log4j</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">1.2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">8.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">commons</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">dbcp</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">1.2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">2.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">commons</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">collections</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">3.2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">1.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">commons</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">pool</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">1.5</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">4.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">mysql</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">connector</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="lit" style="color: rgb(0, 102, 102);">5.1</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">7</span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">bin</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">lib</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">lajp_10</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="lit" style="color: rgb(0, 102, 102);">04.jar</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln">bin</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># 自动启动类和方法，LAJP服务启动时会自动加载并执行</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> AUTORUN_CLASS</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln">cn</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">programmerdigest</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Init</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">export</span><span class="pln"> AUTORUN_METHOD</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln">init</span><span class="com" style="color: rgb(136, 0, 0);"># 字符集设置 GBK|UTF-8</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># export CHARSET=GBK</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># LAJP服务启动指令(前台)</span><span class="pln">java </span><span class="pun" style="color: rgb(102, 102, 0);">-</span><span class="pln">classpath </span><span class="pun" style="color: rgb(102, 102, 0);">.:</span><span class="pln">$classpath lajp</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">PhpJava</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># LAJP服务启动指令(后台)</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);"># nohup java -classpath .:$classpath lajp.PhpJava &</span>
Java自动启动方法cn.programmerdigest.Init类中的init方法:
<span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">/** * 初始化DBCP数据源 */</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> init</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">try</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//从环境变量中获取DBCP配置信息</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Properties</span><span class="pln"> p </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Properties</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"driverClassName"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"com.mysql.jdbc.Driver"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"url"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_url"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"username"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_username"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"password"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_password"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"maxActive"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_maxActive"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"maxIdle"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_maxIdle"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"maxWait"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_maxWait"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"removeAbandoned"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_removeAbandoned"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"removeAbandonedTimeout"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_removeAbandonedTimeout"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"testOnBorrow"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_testOnBorrow"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"validationQuery"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_validationQuery"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> p</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setProperty</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"logAbandoned"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getenv</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"DBCP_logAbandoned"</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//创建数据源</span><span class="pln"> dataSource </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">BasicDataSource</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">BasicDataSourceFactory</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">createDataSource</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">p</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">catch</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Exception</span><span class="pln"> e</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//--</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">throw</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">RuntimeException</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">e</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getMessage</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span>五、其他的文档
LAJP的blog http://programmerdigest.cn/category/lajp
LAJP数据转换示例
文章简介
本文通过程序样例来介绍LAJP中PHP和Java之间的的数据转换。
PHP序列化数据简介
在PHP语言中，数据类型是隐匿的，并且是根据上下文而自动变化的，比如：
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"a is "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
在第一行中，$a是int类型，在第二行中$a变化为string类型。通常“弱”类型语言，像Javascript,VB,PHP等都是这样。PHP中提供了一些函数（is_array()、is_bool()、is_float()、is_integer()等）来获得变量的类型，更直接的方式是观察变量序列化后的排列规则:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
i表示int类型，10是其值。
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"abcd"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">4</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"abcd"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
s表示string类型，4表示长度，"abcd"是其值。
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
b表示boolean类型，1表示TRUE，0表示FALSE。
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10.24</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">d</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10.2400000000000002131628207280300557613372802734375</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
d表示double类型，10.2400000000000002131628207280300557613372802734375是其值。
数组、对象等复杂类型也可以序列化：
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"abcde"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">5</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"abcde"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;}</span>开始的a表示array，紧跟着的3表示数组长度，{}内部是数组元素：
- i:0;i:20;是第一个元素，i:0;是KEY（表示下标是int类型的0），i:20;是VALUE。
- i:1;s:5:"abcde";是第二个元素，i:1;是KEY（表示下标是int类型的1），s:5:"abcde";是VALUE。
- i:2;b:1;是第三个元素，i:2;是KEY（表示下标是int类型的2），b:1;是VALUE。
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"a"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"b"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"abcde"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"c"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
输出：
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"a"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"b"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">5</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"abcde"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"c"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;}</span>这里数组下标是字符串，数据结构可以看作是其他语言的Hashtable类型。
在LAJP中，PHP和Java之间传输的数据封装形式，即是上面这种PHP序列化数据形式。
Example 1 基本
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">++</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass1::myMethod1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">11</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="lit" style="color: rgb(0, 102, 102);">11</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
在LAJP中，当PHP将整形10传给Java服务时，传送的数据即是字符串i:10;，Java服务返回整形11也包装为字符串i:11;。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> myMethod2</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">long</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pun" style="color: rgb(102, 102, 0);">)++</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass1::myMethod2"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Fatal</span><span class="pln"> error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Uncaught</span><span class="pln"> exception </span><span class="str" style="color: rgb(0, 136, 0);">'Exception'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">with</span><span class="pln"> message </span><span class="str" style="color: rgb(0, 136, 0);">'[LAJP Error] Response receive Java exception: MethodNotFoundException: Can'</span><span class="pln">t match method</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">myMethod2</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">long</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="str" style="color: rgb(0, 136, 0);">' in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php:215 Stack trace: #0 /media/sda3/prog/eclipse_php/workspace/LAJP_test/test1_02.php(8): lajp_call('</span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyC</span><span class="pun" style="color: rgb(102, 102, 0);">...</span><span class="str" style="color: rgb(0, 136, 0);">', 10) #1 {main} thrown in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php on line 215</span>myMethod2方法参数声明为long，在PHP中没有与之对应的数据类型，因此抛出异常。
也有朋友认为应该允许这种情况，因为在Java中int可以自动转换为long；我的意见还是不允许，因为有带来二义性的可能。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> myMethod3</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Integer</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pun" style="color: rgb(102, 102, 0);">)++</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass1::myMethod3"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Fatal</span><span class="pln"> error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Uncaught</span><span class="pln"> exception </span><span class="str" style="color: rgb(0, 136, 0);">'Exception'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">with</span><span class="pln"> message </span><span class="str" style="color: rgb(0, 136, 0);">'[LAJP Error] Response receive Java exception: MethodNotFoundException: Can'</span><span class="pln">t match method</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">myMethod3</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">lang</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Integer</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="str" style="color: rgb(0, 136, 0);">' in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php:215 Stack trace: #0 /media/sda3/prog/eclipse_php/workspace/LAJP_test/test1_03.php(8): lajp_call('</span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyC</span><span class="pun" style="color: rgb(102, 102, 0);">...</span><span class="str" style="color: rgb(0, 136, 0);">', 10) #1 {main} thrown in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php on line 215</span>myMethod3方法参数声明为Integer，在Java语言中有装箱、拆箱，int和Integer通常可互换，但在LAJP中此种情况不被允许。所以，如果PHP传送int，Java方法必声明为基本类型int；传double，必声明为基本类型double；传boolean，必声明为基本类型boolean。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">long</span><span class="pln"> myMethod4</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">++</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass1::myMethod4"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">O</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">14</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"java_lang_Long"</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">:{}<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Catchable</span><span class="pln"> fatal error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Object</span><span class="pln"> of </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> __PHP_Incomplete_Class could </span><span class="kwd" style="color: rgb(0, 0, 136);">not</span><span class="pln"> be converted to </span><span class="kwd" style="color: rgb(0, 0, 136);">string</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">in</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">media</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">sda3</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">prog</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">eclipse_php</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">workspace</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">LAJP_test</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">test1_04</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">php on line </span><span class="lit" style="color: rgb(0, 102, 102);">11</span>这里myMethod4方法返回类型为long，在PHP中并没有与之对应的数据类型，但PHP端仍然接收到了:
<span class="pln">O</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">14</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"java_lang_Long"</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">:{}</span>其中起始的"O"表示这是一个对象。
在Java端，LAJP是这样来转换返回数据的：
- 如果方法返回类型是int或包装类Integer，封装为PHP的int序列化数据；
- 如果返回是double或包装类Double，封装为PHP的float序列化数据；
- 如果返回是boolean或包装类Boolean，封装为PHP的boolean序列化数据；
- 如果返回是java.lang.String，封装为PHP的String序列化数据；
- 如果返回是java.util.List或其子类，封装为PHP的array序列化数据，array下标为递增整数；
- 如果返回是java.util.Map或其子类，封装为PHP的array序列化数据，array下标为字符串；
- 如果以上都不是，视为JavaBean，封装为PHP4的对象序列化数据。
本例中，返回类型long被视为最后一种情况。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass1</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Integer</span><span class="pln"> myMethod5</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">++</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass1::myMethod5"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">11</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="lit" style="color: rgb(0, 102, 102);">11</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
在LAJP中，Java方法的返回类型，当声明为int,boolean,double或它们的包装类型是等价的。我的建议是不要声明为包装类型，将来的版本很可能不再支持。
Example 2 参数
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass2</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> a </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass2::myMethod1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Fatal</span><span class="pln"> error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Uncaught</span><span class="pln"> exception </span><span class="str" style="color: rgb(0, 136, 0);">'Exception'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">with</span><span class="pln"> message </span><span class="str" style="color: rgb(0, 136, 0);">'[LAJP Error] Response receive Java exception: MethodNotFoundException: Can'</span><span class="pln">t match method</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyClass2</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pln"> parameters</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="str" style="color: rgb(0, 136, 0);">' in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php:215 Stack trace: #0 /media/sda3/prog/eclipse_php/workspace/LAJP_test/test2_01.php(8): lajp_call('</span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyC</span><span class="pun" style="color: rgb(102, 102, 0);">...</span><span class="str" style="color: rgb(0, 136, 0);">', 10) #1 {main} thrown in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php on line 215</span>在PHP语言中，方法参数是可变长的，但在LAJP中，不允许。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass2</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> myMethod3</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input TRUE"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">else</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input FALSE"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//同名方法</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> myMethod3</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input TRUE, "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">else</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input FALSE, "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass2::myMethod3"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"input TRUE"</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">input TRUE</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
Java的方法重载(overload)，允许。下面是另一个例子（同名，参数数量也相同）:
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass2</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> myMethod4</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input TRUE"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">else</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input FALSE"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> myMethod4</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"input "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass2::myMethod4"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"b--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $b </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">8</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"input 10"</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">input </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
Example 3 空和异常
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass3</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> a</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> a </span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass3::myMethod1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $b</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> $ret </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Fatal</span><span class="pln"> error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Uncaught</span><span class="pln"> exception </span><span class="str" style="color: rgb(0, 136, 0);">'Exception'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">with</span><span class="pln"> message </span><span class="str" style="color: rgb(0, 136, 0);">'[LAJP Error] Response receive Java exception: InvocationTargetException for call method aaa.bbb.ccc.MyClass3.myMethod1'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">in</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">media</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">sda3</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">prog</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">eclipse_php</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">workspace</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">LAJP_test</span><span class="pun" style="color: rgb(102, 102, 0);">/</span><span class="pln">php_java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">php</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">215</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Stack</span><span class="pln"> trace</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">#0 /media/sda3/prog/eclipse_php/workspace/LAJP_test/test3_01.php(9): lajp_call('aaa.bbb.ccc.MyC...', 10, 0) #1 {main} thrown in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php on line 215</span>这是Java端除0异常的例子。Java方法抛出的异常，如果是Exception或其子类，都可以“抛”给PHP端。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass3</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> myMethod2</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass3::myMethod2"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> NULL</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">N</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
这是Java端返回null的例子。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass3</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> myMethod3</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass3::myMethod3"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> NULL </span><span class="pun" style="color: rgb(102, 102, 0);">?</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"NULL"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> $ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
输出:
<span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">N</span><span class="pun" style="color: rgb(102, 102, 0);">;<---</span><span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">NULL</span><span class="pun" style="color: rgb(102, 102, 0);"><---</span>
这是Java端返回void的例子。
在LAJP的9.10版本中，null和void返回类型在PHP端被解释为FALSE，10.04版本中已改正。
Example 4 集合
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass4</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//方法参数声明为List</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">List</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">list </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"list集合为空"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"list集合长度: "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">for</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">++)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">printf</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"----list[%d]:%s\n"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">get</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//方法参数声明为Map</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Map</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">map </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"map集合为空"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"map集合长度: "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Set</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> keySet </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">keySet</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">for</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> key </span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> keySet</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">printf</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"----map[%s=>%s]\n"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> key</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln">map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">get</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">key</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//定义一个数组</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"aaa"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第一个元素"aaa"</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"bbb"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第二个元素"bbb"</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"ccc"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第三个元素"ccc"</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass4::myMethod1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
PHP输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"aaa"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"bbb"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"ccc"</span><span class="pun" style="color: rgb(102, 102, 0);">;}<---</span>Java输出:
<span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">集合长度:</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">]:</span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">]:</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">]:</span><span class="pln">ccc</span>
在PHP中，array可以模拟多种数据类型，如队列、哈西、栈等，对应到Java，有以下规定：
- 如果array的第一个元素的KEY是int类型，对应为Java的java.util.List
- 如果array的第一个元素的KEY是string类型，对应到Java的java.util.Map
<span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"a"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"aaa"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第一个元素"aaa"</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"b"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"bbb"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第二个元素"bbb"</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="str" style="color: rgb(0, 136, 0);">"c"</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"ccc"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//第三个元素"ccc"</span>
array的KEY数据类型被改动为字符串，再来看Java端的输出：
<span class="pln">map</span><span class="pun" style="color: rgb(102, 102, 0);">集合长度:</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">map</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">=></span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">map</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="pln">c</span><span class="pun" style="color: rgb(102, 102, 0);">=></span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">]</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">----</span><span class="pln">map</span><span class="pun" style="color: rgb(102, 102, 0);">[</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">=></span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">]</span>
myMethod1(java.util.Map<String, String> map)方法使用了泛型，在Java中运行态是去泛型化的，因此对于LAJP，泛型无作用。但我建议仍然多用泛型，至少在代码review中清晰很多。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass4</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> myMethod2</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">ArrayList</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">list </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"list集合为空"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">println</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"list集合长度: "</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">for</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> i </span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">size</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">++)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">System</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">out</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">printf</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"----list[%d]:%s\n"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">get</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">30</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass4::myMethod2"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span>
PHP输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">30</span><span class="pun" style="color: rgb(102, 102, 0);">;}<---</span><span class="pln"></span><span class="typ" style="color: rgb(102, 0, 102);">Fatal</span><span class="pln"> error</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Uncaught</span><span class="pln"> exception </span><span class="str" style="color: rgb(0, 136, 0);">'Exception'</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">with</span><span class="pln"> message </span><span class="str" style="color: rgb(0, 136, 0);">'[LAJP Error] Response receive Java exception: MethodNotFoundException: Can'</span><span class="pln">t match method</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyClass4</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">myMethod2</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">ArrayList</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="str" style="color: rgb(0, 136, 0);">' in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php:215 Stack trace: #0 /media/sda3/prog/eclipse_php/workspace/LAJP_test/test4_03.php(11): lajp_call('</span><span class="pln">aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">MyC</span><span class="pun" style="color: rgb(102, 102, 0);">...</span><span class="str" style="color: rgb(0, 136, 0);">', Array) #1 {main} thrown in /media/sda3/prog/eclipse_php/workspace/LAJP_test/php_java.php on line 215</span>集合入参类型声明必须是java.util.List或java.util.Map。这里不能声明为ArrayList是因为PHP传入的参数被视为List，而从面向对象角度理解ArrayList继承自List，可以说ArrayList是List，而List不是ArrayList，因此这里类型不匹配。
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass4</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">HashMap</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Integer</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> myMethod4</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">HashMap</span><span class="pln"> map </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">HashMap</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">put</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">put</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"bbb"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">put</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"ccc"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">30</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> map</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass4::myMethod4"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>
PHP输出:
<span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"aaa"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"ccc"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">30</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">3</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"bbb"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">20</span><span class="pun" style="color: rgb(102, 102, 0);">;}<---</span>这里返回类型声明为java.util.Map的子类形是可以的。从面向对象角度理解：HashMap即是Map。
Example 5 对象
Java:
<span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">//JavaBean</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyBean</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> c</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">List</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">Double</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> getI</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setI</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">i </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> isB</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setB</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> getC</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> c</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setC</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> c</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">c </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> c</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">List</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">Double</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> getList</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setList</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">List</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">Double</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">list </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> list</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> aaa</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">bbb</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">ccc</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyClass5</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyBean</span><span class="pln"> myMethod1</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">MyBean</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">if</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">bean </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setI</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getI</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setB</span><span class="pun" style="color: rgb(102, 102, 0);">(!</span><span class="pln">bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">isB</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setC</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getC</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">" OK!"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">ArrayList</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">Double</span><span class="pun" style="color: rgb(102, 102, 0);">></span><span class="pln"> retList </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> java</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">ArrayList</span><span class="pun" style="color: rgb(102, 102, 0);"><</span><span class="typ" style="color: rgb(102, 0, 102);">Double</span><span class="pun" style="color: rgb(102, 102, 0);">>();</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">for</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">double</span><span class="pln"> d </span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getList</span><span class="pun" style="color: rgb(102, 102, 0);">())</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> retList</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">add</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">d </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">setList</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">retList</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> bean</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>PHP:
<span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> aaa_bbb_ccc_MyBean</span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $c</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $list</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln">$a </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> aaa_bbb_ccc_MyBean</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">//实例化对象</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">i </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">b </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> TRUE</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">c </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"zhangsan"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">list </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> array</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">10.2</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">-></span><span class="pln">list</span><span class="pun" style="color: rgb(102, 102, 0);">[]</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">20.4</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"a--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$a</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyClass5::myMethod1"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> $a</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln">echo </span><span class="str" style="color: rgb(0, 136, 0);">"ret--->"</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> serialize</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">$ret</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"<---<br/>"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>PHP输出:
<span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">O</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">18</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"aaa_bbb_ccc_MyBean"</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">4</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"i"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"b"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"c"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">8</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"zhangsan"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">4</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"list"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">d</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">10.199999999999999289457264239899814128875732421875</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">d</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">20.39999999999999857891452847979962825775146484375</span><span class="pun" style="color: rgb(102, 102, 0);">;}}<---</span><span class="pln">ret</span><span class="pun" style="color: rgb(102, 102, 0);">---></span><span class="pln">O</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">18</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"aaa_bbb_ccc_MyBean"</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">4</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"i"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">11</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"b"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">b</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"c"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">12</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"zhangsan OK!"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">s</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">4</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="str" style="color: rgb(0, 136, 0);">"list"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">a</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">2</span><span class="pun" style="color: rgb(102, 102, 0);">:{</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">d</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">11.199999999999999289457264239899814128875732421875</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">1</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln">d</span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="lit" style="color: rgb(0, 102, 102);">21.39999999999999857891452847979962825775146484375</span><span class="pun" style="color: rgb(102, 102, 0);">;}}<---</span>在LAJP中，对象传输有下面的规则：
- Java端，对象必须符合JavaBean规则
- PHP端，必须是PHP4对象（PHP5对象序列化数据不完备，目前不支持）
- Java和PHP对象映射，属性名称一致（有过Struts编程经历的人很容易理解这点）
LAJP中提供了一个自动生成PHP4对象类的工具，比如可以通过Java的aaa.bbb.ccc.MyBean类，来生成与之对应的PHP4对象类代码：
php:
<span class="pln">$ret </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> lajp_call</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"lajp.ReflectUtil::javaBean2Php"</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"aaa.bbb.ccc.MyBean"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span><span class="pln"></span><span class="com" style="color: rgb(136, 0, 0);">//$ret = lajp_call("lajpsocket.ReflectUtil::javaBean2Php", "aaa.bbb.ccc.MyBean"); //LAJP的socket版本用这一行</span><span class="pln">echo $ret</span><span class="pun" style="color: rgb(102, 102, 0);">;</span>PHP输出:
<span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> aaa_bbb_ccc_MyBean</span><span class="pun" style="color: rgb(102, 102, 0);">{</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $b</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $c</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $i</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">var</span><span class="pln"> $list</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln"></span><span class="pun" style="color: rgb(102, 102, 0);">}</span>对象、数组（Java映射为Map和List）属于容器型数据类型，可以嵌套其他类型数据包括对象和数组，LAJP对嵌套的层级没有限制，但嵌套的子类型（对象内部的属性、数组内部的元素）必须是以下几种：
- int
- boolean
- php(float或double) | Java(double)
- php(string) | Java(java.lang.String)
- php4对象 | Java(JavaBean)
- array | java.util.Map或java.util.List
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- PHP
- PHP
- php
- php
- PHP
- PHP
- php
- php
- php
- PHP
- php
- php
- php
- PHP
- PHP
- php
- php
- PHP
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