初学spring3，关于MultiActionController的使用和配置

首先在web.xml中配好，如下：

<?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">
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
/WEB-INF/dispatcherServlet-servlet.xml
</param-value>
</context-param>
<!--set spring controller -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--加载默认文件 <init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/dispatcherServlet-servlet.xml
</param-value>
</init-param> -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

再看看applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="loginAction" class="com.kwchen.servlet.LoginAction">
<property name="methodNameResolver">
<ref bean="paraMethodResolver" />
</property>
</bean>
</beans>

最后看看 dispatcherServlet-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- 配置url访问 (类似struts的配置action)-->
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="loginAction.do">loginAction</prop>
</props>
</property>
</bean>
<!-- 前缀和后缀，配置后可以减少代码，但是不方便维护，不建议使用 -->
<!--
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/page/" /> <property
name="suffix" value=".jsp" /> </bean>
-->
<!-- 多请求处理控制器 类似sturts DispatchAction -->
<bean id="paraMethodResolver"
class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
<property name="paramName">
<value>action</value>
</property>
</bean>
</beans>

以上都是必须的配置，下面看下对应的LoginAction类，具体代码如下：

package com.kwchen.servlet;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;

public class LoginAction extends MultiActionController
{
public ModelAndView login(HttpServletRequest request, HttpServletResponse response){
System.out.println("here =====");
return new ModelAndView("/index.jsp");
}
}

写好这些后,丢进去运行，输入http://localhost:8080/spring/loginAction.do?action=login，在控制台就会出现

2010-1-30 14:26:43 org.apache.catalina.startup.Catalina start
信息: Server startup in 6506 ms
here =====

一个最简单的MultiActionController就出来了.