spring mvc 404

「已注销」 2017-02-02 07:29:18
开始的时候还好好的，到后面加了点东西就变成404错误了，求教。
web.xml
<!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: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_3_0.xsd" version="3.0">



  <servlet-mapping>

    <servlet-name>default</servlet-name>

    <url-pattern>/js/*</url-pattern>

    <url-pattern>/css/*</url-pattern>

    <url-pattern>/images/*</url-pattern>

    <url-pattern>/fonts/*</url-pattern>



  </servlet-mapping>

<filter>

  <filter-name>encodingFilter</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>encodingFilter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>



  <!--登录验证-->

  <!--<filter>-->

    <!--<filter-name>SessionFilter</filter-name>-->

    <!--<filter-class>ppdai.user.web.attributes.SessionFilter</filter-class>-->

    <!--<init-param>-->

      <!--<param-name>logonStrings</param-name>-->

      <!--<param-value>/login.jsp,/index.html</param-value>-->

    <!--</init-param>-->



    <!--<init-param>-->

      <!--<param-name>includeStrings</param-name>-->

      <!--<param-value>.jsp</param-value>-->

    <!--</init-param>-->



    <!--<init-param>-->

      <!--<param-name>redirectPath</param-name>-->

      <!--<param-value>/login.jsp</param-value>-->

    <!--</init-param>-->



    <!--<init-param>-->

      <!--<param-name>disabletestfilter</param-name>-->

      <!--<param-value>N</param-value>-->

    <!--</init-param>-->

  <!--</filter>-->



  <!--<filter-mapping>-->

    <!--<filter-name>SessionFilter</filter-name>-->

    <!--<url-pattern>/*</url-pattern>-->

  <!--</filter-mapping>-->



  <!--<filter>-->



    <!--<filter-name>login</filter-name>-->



    <!--<filter-class>ppdai.user.web.filter.LoginFilter</filter-class>-->



  <!--</filter>-->



  <!--<filter-mapping>-->



    <!--<filter-name>login</filter-name>-->



    <!--<url-pattern>/jsps/*</url-pattern>-->



    <!--<url-pattern>/views/*</url-pattern>-->



  <!--</filter-mapping>-->



  <servlet>

    <servlet-name>LoginServlet</servlet-name>

    <servlet-class>ppdai.user.web.servlet.LoginServlet</servlet-class>

  </servlet>

  <servlet>

    <servlet-name>VerifyCodeServlet</servlet-name>

    <servlet-class>ppdai.user.web.servlet.VerifyCodeServlet</servlet-class>

  </servlet>

  <servlet>

    <servlet-name>RegistServlet</servlet-name>

    <servlet-class>ppdai.user.web.servlet.RegistServlet</servlet-class>

  </servlet>







  <servlet-mapping>

    <servlet-name>LoginServlet</servlet-name>

    <url-pattern>/LoginServlet</url-pattern>

  </servlet-mapping>

  <servlet-mapping>

    <servlet-name>VerifyCodeServlet</servlet-name>

    <url-pattern>/VerifyCodeServlet</url-pattern>

  </servlet-mapping>

  <servlet-mapping>

    <servlet-name>RegistServlet</servlet-name>

    <url-pattern>/RegistServlet</url-pattern>

  </servlet-mapping>



  <!--springmvc-->

  <servlet>

    <servlet-name>springMybatis</servlet-name>

    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>springMybatis</servlet-name>

    <url-pattern>/WEB-INF/config/*-servlet.xml</url-pattern>

  </servlet-mapping>

  <servlet-mapping>

    <servlet-name>springMybatis</servlet-name>

    <url-pattern>/views/*</url-pattern>

  </servlet-mapping>



  <servlet-mapping>

    <servlet-name>springMybatis</servlet-name>

    <url-pattern>/jsps/*</url-pattern>

  </servlet-mapping>



  <!--<servlet-mapping>-->

    <!--<servlet-name>springMybatis</servlet-name>-->

    <!--<url-pattern>/*/*.*</url-pattern>-->

  <!--</servlet-mapping>-->



  <context-param>

    <param-name>contextConfigLocation</param-name>

    <param-value>/WEB-INF/config/spring-*.xml</param-value>

  </context-param>



  <listener>

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

  </listener>

  <servlet>

    <servlet-name>DruidStatView</servlet-name>

    <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>

  </servlet>

  <servlet-mapping>

    <servlet-name>DruidStatView</servlet-name>

    <url-pattern>/druid/*</url-pattern>

  </servlet-mapping>









  

<display-name>Archetype Created Web Application</display-name>

</web-app>


Controller
package ppdai.user.web.controller;



import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.servlet.ModelAndView;



import javax.servlet.ServletContext;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import java.util.HashSet;

import java.util.Set;



/**

 * Created by yangliwen on 2017/1/23.

 */



@Controller

@RequestMapping(value = "/jsps")

public class HomeController {



    @RequestMapping(value = "/index.html",method = RequestMethod.GET)

    public ModelAndView Index(HttpServletRequest request,HttpServletResponse response)

    {

       Object object= request.getSession().getAttribute("username");

        if(object!=null)

        {

            ServletContext context=request.getServletContext();

            context.setAttribute("Username",object.toString());

            context.setAttribute("HasSign",true);

        }

        ModelAndView modelAndView=new ModelAndView();

        modelAndView.addObject("hello","1234567");

        modelAndView.setViewName("index");

        return modelAndView;

    }



    @RequestMapping(value = "/login2",method = RequestMethod.GET)

    public ModelAndView login2()

    {

        ModelAndView modelAndView=new ModelAndView();

        modelAndView.setViewName("login");



        return  modelAndView;

    }



    @ResponseBody

    @RequestMapping(value = "/login",method = RequestMethod.POST)

    public ModelAndView Login( HttpServletRequest request, HttpServletResponse response)

    {

        HttpSession session=request.getSession();

        session.setMaxInactiveInterval(60);

        ServletContext application=session.getServletContext();

        Set<String> onlineUserSet=new HashSet<>();

        session.setAttribute("username","peter");

        onlineUserSet=(Set)application.getAttribute("onlineUserSet");

        onlineUserSet.add("peter");

        application.setAttribute("onlineUserList",onlineUserSet);

        onlineUserSet=(Set)application.getAttribute("onlineUserSet");



        return  null;

    }

}


无论请求哪个ACTION都没用。
springMybatis-servlet.xml
<?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.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.xsd ">



    <mvc:annotation-driven />

    <context:component-scan base-package="ppdai.user.web.controller" />



    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/pages"></property>

        <property name="suffix" value=".jsp"></property>

    </bean>

    <!--<mvc:interceptors>-->

        <!--<mvc:interceptor>-->

            <!--<mvc:mapping path="/"/>-->

        <!--</mvc:interceptor>-->



        <!--<bean class="ppdai.user.web.attributes.CommonInterceptor"></bean>-->

    <!--</mvc:interceptors>-->

</beans>

搞了一天了，还是404，求教,项目大体结构：
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「已注销」 2017-02-03
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问题解决了，我来说下吧，是因为servlet-mapping的问题 
  <servlet-mapping>
    <servlet-name>springMybatis</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
只要去掉其他的，把上面 这一行加上去就OK了。
GrayHJX 2017-02-02
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你的controller注解没起到作用。<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
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