spring mvc注入controller失败找不到原因

运行不报错，根目录下的文件可以访问。但是访问不了Controller，打断点运行也进不去， 访问http://localhost:8081/rest/itemcat/list就404找不到页面，求大神解救。

这是springMVC配置文件

 <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.taotao.rest.controller" />
    <mvc:annotation-driven />
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

这是Controller层

 package com.taotao.rest.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.MappingJacksonValue;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.taotao.common.utils.JsonUtils;
import com.taotao.rest.pojo.CatResult;
import com.taotao.rest.service.ItemCatService;

/**
 * 商品分类列表
 * <p>Title: ItemCatController</p>
 * <p>Description: </p>
 * <p>Company: www.itcast.com</p> 
 */
@Controller
public class ItemCatController {

    @Autowired
    private ItemCatService itemCatService;

    /*@RequestMapping(value="/itemcat/list", 
            produces=MediaType.APPLICATION_JSON_VALUE + ";charset=utf-8")
    @ResponseBody
    public String getItemCatList(String callback) {
        CatResult catResult = itemCatService.getItemCatList();
        //把pojo转换成字符串
        String json = JsonUtils.objectToJson(catResult);
        //拼装返回值
        String result = callback + "(" + json + ");";
        return result;
    }*/
    @RequestMapping("/itemcat/list")
    @ResponseBody
    public Object getItemCatList(String callback) {
        CatResult catResult = itemCatService.getItemCatList();
        MappingJacksonValue mappingJacksonValue = new MappingJacksonValue(catResult);
        mappingJacksonValue.setJsonpFunction(callback);
        return mappingJacksonValue;
    }
}

这是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="taotao" version="2.5">
    <display-name>taotao-portal</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>
    <!-- 加载spring容器 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext-*.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 解决post乱码 -->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- springmvc的前端控制器 -->
    <servlet>
        <servlet-name>taotao-portal</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- contextConfigLocation不是必须的， 如果不配置contextConfigLocation， springmvc的配置文件默认在：WEB-INF/servlet的name+"-servlet.xml" -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>taotao-portal</servlet-name>
        <!-- 伪静态化 -->
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
</web-app>

如何追加20C币呢？有人在吗？在线等

我还在仔细看，稍等半分钟。

Controller头部为啥没有requestmapping

第一，如是从浏览器地址，默认是get请求，那把@RequestMapping("itemcat/list");//少了第一个斜杠
第二，如果是触发某个事件，检查请求方式是否是get.

1、 @RequestMapping(value="/itemcat/list")

2、确保这个路径正确classpath:spring/springmvc.xml

头部试着这样写 @RequestMapping("test-list") 访问的时候路径写test-list.html

controller进不去的话，你检查一下你访问这个路径的时候有没有把变量callback带上，且访问的时候前后台设定的名字要一样

*.html
访问的地址要添加.html
@RequestMapping("test-list.html")