struts2配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
  <!-- 定义ActionContextCleanUp过滤器 -->
  <filter>
  <filter-name>struts-cleanup</filter-name>
  <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
  </filter>
 
  <!-- 定义SiteMesh过滤器 -->
  <filter>
  <filter-name>sitemesh</filter-name>
  <filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>
  </filter>
 
  <!-- 定义Struts2过滤器 -->
  <filter>
  <filter-name>struts2</filter-name>
  <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  </filter>
 
  <!-- 定义过滤器链 -->
  <!-- 排在第一位的过滤器是:ActionContextCleanUp核心过滤器 -->
  <filter-mapping>
  <filter-name>struts-cleanup</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
 
  <!-- 排在第一位的过滤器是:SiteMesh核心过滤器 -->
  <filter-mapping>
  <filter-name>sitemesh</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
 
  <!-- 排在第一位的过滤器是:FilterDispatcher核心过滤器 -->
  <filter-mapping>
  <filter-name>struts2</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>