Java清除session的方法

看这篇文章前你可以看看：  session的关闭的机制  

第一种方法(继承SessionAware类来取得session,然后用invalidate()方法清理)

1. public class ExitAction extends ActionSupport implements SessionAware{
   
2. @Override
   
3. public String execute() throws Exception {
   
4. HttpServletRequest request = ServletActionContext.getRequest();
   
5. HttpSession session1 = request.getSession();
   
6. session1.invalidate();
   
7. return super.execute();
   
8. }
   
9. 
   
10. public void setSession(Map arg0) {
    
11. 
    
12. 
    
13. }
    
14. 
    
15. }
    
16. 
    

//第二种方法（用ActionContext取session,然后用clear()方法清理）

1. public class ExitAction extends ActionSupport{
   
2. 
   
3. @Override
   
4. public String execute() throws Exception {
   
5. ActionContext ac = ActionContext.getContext();
   
6. Map session = ac.getSession();
   
7. session.remove("buser");
   
8. session.remove("guser");
   
9. session.remove("fuser");
   
10. return super.execute();
    
11. }
    
12. 
    
13. }