<?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"      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>      <!-- Spring和mybatis的配置文件 -->      <context-param>          <param-name>contextConfigLocation</param-name>          <param-value>classpath:spring-mybatis.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>      <!-- Spring监听器 -->      <listener>          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>      </listener>      <!-- 防止Spring内存溢出监听器 -->      <listener>          <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>      </listener>        <!-- Spring MVC servlet -->      <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:spring-mvc.xml</param-value>          </init-param>          <load-on-startup>1</load-on-startup>          <async-supported>true</async-supported>      </servlet>      <servlet-mapping>          <servlet-name>SpringMVC</servlet-name>          <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 这里代表拦截如下两种后缀的请求,如果只写 /，那么代表拦截所有资源 -->          <url-pattern>*.json</url-pattern>          <url-pattern>*.jhtml</url-pattern>     </servlet-mapping>      <welcome-file-list>          <welcome-file>/index.jsp</welcome-file>      </welcome-file-list>    </web-app>   <!-- 读取spring和shiro配置文件 --><!--     <context-param> --><!--         <param-name>contextConfigLocation</param-name> --><!--         <param-value>classpath:spring-shiro.xml</param-value> --><!--     </context-param> -->    <!-- 设计路径变量值 --><!--     <context-param> --><!--         <param-name>webAppRootKey</param-name> --><!--         <param-value>springmvc.root</param-value> --><!--     </context-param> -->        <!-- shiro过滤器 --><!--     <filter> --><!--         <filter-name>shiroFilter</filter-name> --><!--         <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> --><!--         <init-param> --><!--             <param-name>targetFilterLifecycle</param-name> --><!--             <param-value>true</param-value> --><!--         </init-param> --><!--     </filter> --><!--     <filter-mapping> --><!--         <filter-name>shiroFilter</filter-name> --><!--         <url-pattern>*.jhtml</url-pattern> --><!--         <url-pattern>*.json</url-pattern> --><!--     </filter-mapping> -->