springmvc注解不好使啦，如何总报404呢

springmvc注解不好使啦，怎么总报404呢
web.xml：
<?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>springMVC1</display-name>

  <servlet>
   <servlet-name>springMVC</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
   <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath*:config/springAnnotation-servlet.xml</param-value>
   </init-param>
   <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
   <servlet-name>springMVC</servlet-name>
   <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>

springAnnotation-servlet.xml：
springmvc注解不好使啦，如何总报404呢

UserController：
package com.tgb.web.controller.annotation;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class UserController {
@RequestMapping(value="/user/addUser",method=RequestMethod.POST)
public ModelAndView addUser(){

String result ="this is addUser------";
return new ModelAndView("/jquery","result",result);
}

@RequestMapping(value="/user/delUser",method=RequestMethod.GET)
public ModelAndView delUser(){
String result ="this is delUser------";
return new ModelAndView("/jquery","result",result);
}

@RequestMapping(value="/user/toUser",method=RequestMethod.GET)
public ModelAndView toUser(){
return new ModelAndView("/jquery");
}
}

------解决思路----------------------
还有个servlet 配置加载没。
------解决思路----------------------
在web-xml里面加载这个配置文件

springmvc注解不好使啦，如何总报404呢

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