这是我的RESTfulController的样子。'yii\filters\ContentNegotiator','only'=>['view','index'],//inacontroller//ifinamodule,usethefollowingIDsforuseractions//'only'=>['user/view','user/index']'formats'=>['application/json'=>Response::FORMAT_JSON,],'languages'=>['en','de',],],['class'=>\yii\filters\Cors::clas