add

app/Http/Api/WechatOfficialController.php

@@ -122,8 +122,8 @@ class WechatOfficialController extends HttpBaseController
         });
 
         $this->app->server->serve();
-        // $response = $this->app->server->serve();
-        // $response->send();
+        $response = $this->app->server->serve();
+        $response->send();
         exit();
     }