@Action(
     value = "update_privilege",
     results = {
       @Result(
           name = "success",
           type = "json",
           params = {
             "contentType", "text/json",
             "includeProperties", "results"
           })
     })
 public String execute() {
   try {
     Privilege old = privilegeBiz.findPrivilegeById(privilege.getId());
     privilege.setFullPath(old.getFullPath());
     privilege.setIsShow(old.getIsShow());
     privilegeBiz.modify(privilege);
     results = true;
   } catch (Exception e) {
     e.printStackTrace();
   }
   return SUCCESS;
 }