public function setPwdAction()
 {
     if (!$this->validFlag) {
         echo json_encode(array('ret' => 0, 'msg' => $this->warnMsg));
     } else {
         $user = new User();
         $data = $user->getUid($this->session->get('resetMobile'));
         $res = $user->changePwd($data['u_id'], $this->_sanReq['passwd']);
         if ($res) {
             $this->session->remove('resetToken');
             $this->session->remove('resetMobile');
             echo json_encode(array('ret' => 1));
         }
     }
     exit;
 }