springmvc控制器配置多方法问题！

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.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-3.0.xsd">

	<bean name="/test/multi" class="com.sunnet.controller.MultiController">
		<property name="methodNameResolver">
			<ref bean="paramMethodResolver" />
		</property>
	</bean>
	
		<!-- 一个控制器写多个方法(多方法解析器) -->
	<bean id="paramMethodResolver"
		class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
		<property name="paramName" value="action" />
	</bean>




	<!-- 配置springMvc视图解析器 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 配置视图前缀 -->
		<property name="prefix" value="/"></property>
		<!-- 配置视图后缀 -->
		<property name="suffix" value=".jsp"></property>

	</bean>
</beans>

package com.sunnet.controller;

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

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

public class MultiController extends MultiActionController {
	public ModelAndView add(HttpServletRequest request,HttpServletResponse reponse) {
		System.out.println("--------add----------");
		return new ModelAndView("/multi","method","add");
	}

	public ModelAndView update(HttpServletRequest request,HttpServletResponse reponse) {
		System.out.println("--------update----------");
		return new ModelAndView("/multi","method","update");
	}
}

<?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>springMvc</display-name>

	<!-- 注册dispatherContext -->
	<servlet>
		<servlet-name>springMvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 配置配置文件路径 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath*:com/config/spring-servlet.xml</param-value>
		</init-param>

		<!-- 配置启动顺序启动 -->
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springMvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<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>
</web-app>

Tomcat运行起来 ，但是 http://localhost:8080/spirngMvc/test/multi?action=add

出现404 错误！求解


问题已经解决！
导错包了：import org.springframework.web.portlet.ModelAndView;