springMVC4 默认跳转到requestMapping中对应url的jsp去了？

Question

现在的问题：前段发送请求到对应的controller，可以获取到参数，我想把返回数据放到modelMap中来返回给前台。但是前台一直报404，因为它并没有返回数据，而是去跳转页面了。
希望实现的目的：只返回数据给前台

方法进入的controller

spring-mvc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:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.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-4.0.xsd">

    <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
    <mvc:annotation-driven />

    <!-- 静态资源(js、image等)的访问 -->
    <mvc:default-servlet-handler/>

    <!-- 使用注解的包，包括子集 -->
    <context:component-scan base-package="com.sky.controller" />

    <!-- 简单的异常处理 -->
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <!-- 映射目录为/WEB-INF/jsp/error/upload_error.jsp -->
                <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">/error/upload_error</prop>
            </props>
        </property>
    </bean>


    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- springmvc文件上传需要配置的节点-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="20971500"/>
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="resolveLazily" value="true"/>
    </bean>
</beans>

web.xml配置文件

 <!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app 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_3_0.xsd"
         version="3.0">
    <display-name>Archetype Created Web Application</display-name>
    <description>skyCredit</description>

    <!-- 加载Spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:/config/applicationContext.xml</param-value>
    </context-param>

    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 日志记录 -->
    <context-param>
        <!-- 日志配置文件路径 -->
        <param-name>log4jConfigLocation</param-name>
        <param-value>classpath:config/log4j.properties</param-value>
    </context-param>
    <context-param>
        <!-- 日志页面的刷新间隔 -->
        <param-name>log4jRefreshInterval</param-name>
        <param-value>6000</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

    <!-- Spring监听 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Spring MVC配置 -->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 自定义spring mvc的配置文件名称和路径 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:config/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- spring mvc 请求后缀 -->
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

前台的返回结果 404

项目结构

Answer 1

@RequestMapping("/userList")
@ResponseBody

@ResponseBody：加上这个注解就可以返回数据到页面，不加这个注解的话就代表是接下来跳转到页面。