Laravel5中，各种验证的实现，以及Json返回中文对应

1.使用Form中的抽象方法

   Illuminate\Foundation\Http\FormRequest

    protected function getValidatorInstance()
    {
        $factory = $this->container->make('Illuminate\Validation\Factory');

        if (method_exists($this, 'validator')) {
            return $this->container->call([$this, 'validator'], compact('factory'));
        }

        return $factory->make(
            $this->all(), $this->container->call([$this, 'rules']), $this->messages(), $this->attributes()
        );
    }

 

    public function response(array $errors)
    {
        if ($this->ajax() || $this->wantsJson()) {
            return new JsonResponse($errors, 422);
        }

        return $this->redirector->to($this->getRedirectUrl())
                                        ->withInput($this->except($this->dontFlash))
                                        ->withErrors($errors, $this->errorBag);
    }

2.使用Controller中父类方法

   App\Http\Controllers\Controller->Illuminate\Foundation\Validation\ValidatesRequests

   validate->throwValidationException->buildFailedValidationResponse-> throw new HttpResponseException

 

    protected function buildFailedValidationResponse(Request $request, array $errors)
    {
        if ($request->ajax() || $request->wantsJson()) {
            return new JsonResponse($errors, 422);
        }

        return redirect()->to($this->getRedirectUrl())
                        ->withInput($request->input())
                        ->withErrors($errors, $this->errorBag());
    }

 

 

 

路由类Illuminate\Routing\Route

 

    public function run(Request $request)
    {
        $this->container = $this->container ?: new Container;

        try {
            if (!is_string($this->action['uses'])) {
                return $this->runCallable($request);
            }

            if ($this->customDispatcherIsBound()) {
                return $this->runWithCustomDispatcher($request);
            }

            return $this->runController($request);
        } catch (HttpResponseException $e) {
            return $e->getResponse();
        }
    }

 

 

 

3.手动实装

 

$validator = Validator::make($request->all(),[
            'title' => 'required',
            'name' => 'required',
        ],[
            'required' => ":attributeは必須となります。",
        ],[
            'title' => 'タイトル',
            'name' => '名前',
        ]);
        if ($validator->fails()) {
            return back()->withErrors($validator)->withInput();
        }

 response()->json()->setJsonOptions(JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE)->setData($validator->errors()->getMessages());