dwr 的使用

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需要jar文件

dwr.jar , commons-logging-1.1.1.jar

web.xml配置

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>dwr</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>    <servlet>  <servlet-name>dwr</servlet-name>  <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>  <init-param>  <param-name>debug</param-name>  <param-value>true</param-value>  </init-param>   <init-param >          <param-name> classes </param-name >           <param-value> java.lang.Object </param-value >       </init-param >      <load-on-startup > 100 </load-on-startup >   </servlet>      <servlet-mapping>  <servlet-name>dwr</servlet-name>  <url-pattern>/dwr/*</url-pattern>  </servlet-mapping>    </web-app>

java类

package com.zf.vo;import java.util.Date;public class Person {private String name ;public String getName() {return name;}public void setName(String name) {this.name = name;}//提供给js调用的方法public String sayHello(String name){return "Hello, " + name + "  " + new Date().toLocaleString(); }}

dwr.xml配置 WEB-INF 目录下面

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE dwr PUBLIC    "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN"    "http://getahead.org/dwr/dwr30.dtd">  <dwr>  <allow>  <create creator="new" javascript="JDate">  <param name="class">java.util.Date</param>  </create>  <create creator="new" javascript="Person">  <param name="class" value="com.zf.vo.Person"></param>  </create>  </allow>  </dwr>