Struts2中StrutsRequestWrapper类

该类可获取一些请求地址，在自定义struts2标签时用到

 1 //获取值栈
 2         Map cont= this.getStack().getContext();
 3         StrutsRequestWrapper req=(StrutsRequestWrapper)cont.get(StrutsStatics.HTTP_REQUEST);
 4         //获取请求action的地址
 5         String url=(String)req.getAttribute("javax.servlet.forward.request_uri");
 6         System.out.println("PageComponent.start()"+url);
 7
 8         //获取的标签所在jsp页面的全路径
 9         StringBuffer stringBuffer=req.getRequestURL();//http://localhost:8080/Struts2HibernateSpring/list.jsp
10         System.out.println("PageComponent.start()"+stringBuffer.toString());
11
12         //获取的是请求后台的地址，其中的参数的值
13         Object object=req.getAttribute("pageNo");
14         System.out.println("PageComponent.start()");
15         //key--->value
16         //javax.servlet.forward.query_string-->(获取请求参数字符串)pageNo=1&seachName=%E5%B0%9A%E6%99%93%E9%A3%9E
17         //javax.servlet.forward.request_uri-->(获取请求路径到方法名)/Struts2HibernateSpring/StudentAction!queryStudent
18         //javax.servlet.forward.context_path-->（ 获取项目名）/Struts2HibernateSpring
19         //javax.servlet.forward.servlet_path--> (获取请求的action名字+method名字)/Struts2HibernateSpring
20         //struts.request_uri --->(获取请求路径到方法名)/Struts2HibernateSpring/StudentAction!queryStudent
21         //struts.view_uri -->(获取struts请求返回的jsp的路径)/list.jsp
22         //__cleanup_recursion_counter---> 1
23         //characterEncodingFilter.FILTERED--> true
24         //struts.actionMapping--->ActionMapping{name=‘StudentAction‘, namespace=‘/‘, method=‘queryStudent‘, extension=‘null‘, params=null, result=null}
25         //org.springframework.web.context.request.async.WebAsyncManager.WEB_ASYNC_MANAGER--->[email protected]f892d
26         //struts.valueStack--->[email protected]
27         Enumeration<String> pd=req.getAttributeNames();
28         while(pd.hasMoreElements()){
29             String nameString=pd.nextElement();
30             Object object2=req.getAttribute(nameString);
31             System.out.println("PageComponent.start()"+object2);
32         }
33