public function actionFtpDownload() { if (Yii::app()->user->isGuest) { echo json_encode(array('res' => 0, 'msg' => '请先登录')); die; } $fileurl = Yii::app()->request->getParam('fileurl'); $filename = Yii::app()->request->getParam('filename'); if ($fileurl) { $res = Ftp::down($fileurl, $filename); if ($res['success'] === false) { echo json_encode(array('res' => 0, 'msg' => $res['msg'])); } } else { echo json_encode(array('res' => 0, 'msg' => '文件路径不能为空')); } }