在Struts2 Action中快速简便的访问Request、Session等变量

 1     public class LoginAction {  
 2         private HttpServletRequest request;  
 3         private HttpSession session;  
 4         private ServletContext application;  
 5         public String execute() {  
 6                   
 7             request = ServletActionContext.getRequest();  
 8             session = request.getSession();  
 9             application = session.getServletContext();  
10               
11             //application = ServletActionContext.getRequest().getSession().getServletContext();  
12               
13             request.setAttribute("aaa", "aaa");  
14             session.setAttribute("bbb", "bbb");  
15             application.setAttribute("ccc", "ccc");  
16               
17             return "success";  
18         }  
19     }  

 1 public class BaseAction extends ActionSupport{
 2 
 3     protected HttpServletRequest getRequest(){
 4         return ServletActionContext.getRequest();
 5     }
 6     
 7     protected HttpServletResponse getResponse(){
 8         return ServletActionContext.getResponse();
 9     }
10     protected HttpSession getSession(){
11         return getRequest().getSession();
12     }
13     
14         //快速执行标签
15     public void addActionErrorsFromResult(ExecuteResult<?> result) {
16         for (String error : result.getErrorMessages()) {
17             this.addActionError(error);
18         }
19     }
20     public void addFieldErrorsFromResult(ExecuteResult<?> result) {
21         for (String field : result.getFieldErrors().keySet()) {
22             this.addFieldError(field, result.getFieldErrors().get(field));
23         }
24     }
25 }