奇怪问题

@@ -31,7 +31,7 @@ class Controller_Admin_Base extends Controller_Abstract
     protected function beforeExecute()
     {
         //获取session
-        $session = $this->getCookie('_admin');
+        $session = Util_Utils_SafeCookie::get('_admin');
         $session = unserialize($session);
         //非默认控制器，则校验权限
         if ($this->_request->controller_name != 'default'  && !$session)
@@ -77,7 +77,7 @@ class Controller_Admin_Base extends Controller_Abstract
         {
             $exitUser = serialize($exitUser);
             //通过
-        	$this->setCookie('_admin', $exitUser);  
+            Util_Utils_SafeCookie::set('_admin', $exitUser);
         	return true ;
         }
         return false ;
@@ -89,9 +89,6 @@ class Controller_Admin_Base extends Controller_Abstract
      */
     protected function logout()
     {
-        $this->delCookie('_admin'); 
+        Util_Utils_SafeCookie::clear('_admin'); 
     }
-    
-    
-    
 }
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