SpringMVC Controller写法

项目结构

spring 3.2.4 + jdk6 + tomcat7

src  |--com.abc        |--controller        |         |--AbcdefgController.java        |--service                |--Service1.java                |--Service2.javaWEB-INF  |--web.xml             #listener, server, context  |--abcdefg-servlet.xml #spring相关

Controller

@Controllerpublic class 项目名Controller {    @Autowired    Service1 service1; // 使用@Autowired标签必须规范命名 - 除首字母外和类名一致    @Autowired    Service2 service2;    @ResponseBody  // 返回值以http response的正文形式返回给浏览器    @RequestMapping(value="/helloworld",method=RequestMethod.POST)    public String getHelloworld(@RequestParam(value="city") String city,                                  @RequestParam(value="project") String project) {            return service1.doSomething();    }    @ResponseBody      @RequestMapping(value="/hello",method=RequestMethod.GET)    public String getHello() {            return service2.doSomething();    }}

Service

Service类负责具体业务, 最好是有个Service接口, 再实现这个接口. 面向接口编程的好处无需赘述.

public interface Service{    doSomething();}

@Servicepublic class Service1 implements Service{    public String doSomething(){        // your business logic    }}

Web配置

转自:http://www.open-open.com/lib/view/open1330670747561.html
Spring MVC 3 最简单的入门示例
这两天再看spring mvc，想再网上找一个demo，感觉国内的demo都太复杂了。后来在国外网站上发现了一个比较简单，应该说是最简单的spring mvc的demo了，在此做个记录，给需要的人了解一下。

第一步：准备包

日志相关包
jcl-over-slf4j-1.6.1.jar
logback-classic-0.9.29.jar
logback-core-0.9.29.jar
slf4j-api-1.6.1.jar

jstl包(jsp标签包)
jstl-1.2.jar

spring 相关包

<!-- ===============================     ivy.xml     ${spring.version}=3.2.4.RELEASE     =============================== -->        <dependency org="org.springframework" name="spring-aop" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-aspects" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-beans" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-context" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-context-support" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-core" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-expression" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-jdbc" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-tx" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-web" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-webmvc" rev="${spring.version}"/>        <dependency org="org.springframework" name="spring-test" rev="${spring.version}"/>

第二步：在eclipse工程中建Dynamic Web project

向导窗口，一路next，最后得到一个web工程。

在WebContent\WEB-INF目录下生成一个jsp文件夹和两个配置文件：spring-servlet.xml、web.xml

web.xml内容为

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">    <display-name>Spring3MVC</display-name>    <servlet>        <servlet-name>spring</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>spring</servlet-name>        <url-pattern>*.html</url-pattern>     </servlet-mapping>     <welcome-file-list>        <welcome-file>index.jsp</welcome-file>    </welcome-file-list></web-app>

spring-servlet.xml内容为

<?xml version="1.0" encoding="UTF-8"?><beans default-autowire="byName"    xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:task="http://www.springframework.org/schema/task" xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:util="http://www.springframework.org/schema/util"    xsi:schemaLocation="       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd       http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">  <context:component-scan base-package="com" /></beans>

到此就完成了所有的代码和配置，所有的文档和配置加在一起只有60行左右，比较简单把。

完成后就可以放在tomcat等容器中运行一下，然后在web中打开地址。

在index.jsp上点击Say Hello，就会转向http://localhost:8080/springmvcdemo/hello.html
页面显示Hello World, Spring 3.0!