struts2 codebehind + actionPackages 实现Action零配置

1。jar包：struts2-codebehind-plugin-2.2.1.1.jar

2。struts.xml：<!-- codebehind中查找action的返回结果资源时的默认文件夹 -->
    　　　　　　 <constant name="struts.codebehind.pathPrefix" value="/pages/" />

3。web.xml：

 1     <!-- struts2过滤器 -->
 2     <filter>
 3         <filter-name>struts2</filter-name>
 4         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
 5         <init-param>
 6             <param-name>actionPackages</param-name>
 7             <param-value>            
 8                 com.ext.emp.struts2,com.demo.stu.struts2
 9             </param-value>
10         </init-param>
11     </filter>
12     <!-- action过滤 -->
13     <filter-mapping>
14         <filter-name>struts2</filter-name>
15         <url-pattern>*.action</url-pattern>
16     </filter-mapping>
17     <!-- 静态资源过滤 -->
18     <filter-mapping>
19         <filter-name>struts2</filter-name>
20         <url-pattern>/struts/*</url-pattern>
21     </filter-mapping>

web.xml部分