dangfei-api/app/Http/Controllers/Controller.php

<?php

namespace App\Http\Controllers;

use Laravel\Lumen\Routing\Controller as BaseController;

class Controller extends BaseController
{
//    protected function throwValidationException(Request $request, $validator)
//    {
//       $response = [
//            'code' => 400,
//            'msg'  => $validator->errors()->first(),
//            'data' => []
//        ];
//        throw new ValidationException($validator, $response);
//    }
}