在struts2中获取请求action名称或参数

1.Interceptor配置

Xml代码  

1. <package name="sysManageServices" namespace="/" extends="struts-default">  
2.         <interceptors>  
3.             <interceptor name="reqCheck" class="interceptor.RequestInterceptor"/>  
4.             <interceptor-stack name="teamwareStack">  
5.                 <interceptor-ref name="requestCheck"/>  
6.                 <interceptor-ref name="defaultStack"/>  
7.             </interceptor-stack>  
8.         </interceptors>  
9.         <default-interceptor-ref name="teamwareStack"/>  
10.         <action name="searchUserInfo" class="action.SearchUserInfoAction">  
11.             <result name="success">/page/userManage.jsp</result>  
12.             <result name="error">/page/result.jsp</result>  
13.         </action>  
14.     </package>  

2.拦截器代码

Java代码  

1. package interceptor.RequestInterceptor;  
2.   
3. import java.util.Map;  
4.   
5. import javax.servlet.http.HttpSession;  
6.   
7. import com.opensymphony.xwork2.Action;  
8. import com.opensymphony.xwork2.ActionSupport;  
9. import com.opensymphony.xwork2.ActionInvocation;  
10. import com.opensymphony.xwork2.interceptor.AbstractInterceptor;  
11.   
12. public class RequestInterceptor extends AbstractInterceptor {  
13.   
14.     private static final long serialVersionUID = 3244973830196015811L;  
15.     private HttpSession session;  
16.   
17.     public void setSession(Map<String, Object> session) {  
18.         this.session = (HttpSession) session;  
19.     }  
20.   
21.     public String intercept(ActionInvocation aInvocation) throws Exception {  
22.           
23.         // 获取请求的action名称  
24.         String actionName = aInvocation.getInvocationContext().getName();  
25.           
26.         // 获取action后附带参数  
27.         Map parameters = aInvocation.getInvocationContext().getParameters();  
28.           
29.         if (hrefList.contains(requestName)) {  
30.             String result = actionInvocation.invoke();  
31.             return result;  
32.         } else {  
33.             ActionSupport aSupport =  (ActionSupport) actionInvocation.getAction();  
34.             aSupport.addActionMessage("不存在该页面！请返回");  
35.             return Action.ERROR;  
36.         }     
37. }