web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>hcrj</display-name>    
    
    <welcome-file-list>
            <welcome-file>login.jsp</welcome-file>
    </welcome-file-list>
   
   <!--监听器启动spring容器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
   
   <!--指定spring配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-*.xml</param-value>
    </context-param>

    <!--配置post乱码过滤器-->
    <filter>
        <filter-name>characterEncodingFitler</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>characterEncodingFitler</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
　　
　　<!-- 请求的时候写隐藏的name="_method" value="delete|put|post|get" 
    只能使用_method 源码为 public static final String DEFAULT_METHOD_PARAM = "_method"; -->
    <filter>
   　　　　 <filter-name>hiddenHttpMethodFilter</filter-name>
    　　　　<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
    </filter>
    <filter-mapping>
    　　　　<filter-name>hiddenHttpMethodFilter</filter-name>
   　　　　 <servlet-name>springmvc</servlet-name>
    </filter-mapping>
　
　<!-- 自行配制的过滤器
    <filter>
        <filter-name>loginFilter</filter-name>
        <filter-class>com.hcrj.filter.LoginFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>loginFilter</filter-name>    
        <servlet-name>springmvc</servlet-name>
    </filter-mapping>
   -->
   
    <!--启动springmvc的前端控制器-->
    <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:springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!--将该servlet设置为默认的servlet-->
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>