why response.addCookie not working inside Struts action class

[john lee]

inside Struts(1.x) Action class, within method
   
  public ActionForward(ActionMapping mapping, ActionForm form, 
HttpServletRequest request, HttpServletResponse response) throws Exception
   
  i did the following:
   
  ...
  Cookie me;
  me=new Cookie("LoginID","xxx");
  me.setMaxAge(30*24*60*60);
  response.addCookie(me);
  ...
  return mapping.findFroward("success");
   
  but no cookie(LoginID) is generated at local harddisk, what could be happen? 
inside Struts action class, can not call Cookie function?
   
  any clue? tks in advance
   
  john
   

       
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