Laravel Validator无法正常工作 - 重定向主页面

Question

Laravel 5.5

public function register(Request $request){


    request()->validate([
        'email' => 'required:email'
        'password' => 'required|min:6'
    ]);

    return response()->json(["message" => "Hello World"]);

}

如果验证器失败,则不提供错误消息.重定向主页面

Answer 1

如果您使用的代码在验证失败时将您重定向到上一页,则表示您没有告诉服务器您希望接收哪种响应.

设置正确的标头以获取JSON.它将使验证器发送JSON作为响应.例如:

$.ajax({
  headers: {
    Accept : "application/json"
  },
  ...
});

然后这段代码将按预期工作:

public function register(Request $request) 
{
    $request->validate([
        'email' => 'required:email'
        'password' => 'required|min:6'
    ]);

    return response()->json(["message" => "Hello World"]);
}

Answer 2

在 Postman 应用程序中测试我的其余 api 时，我遇到了同样的问题。

1. 如果我们不想修改当前的 laravel 重定向 repose 代码，我们必须放置 Accept:-application/json 和 ContentType:-application/json

2. 为了修改控制器类文件中的代码，我这样做并获得了 json 响应，而不是重定向到主页。

      public function register(Request $request)
      {
          $validator = Validator::make($request->all(), [
            'name' => 'required|string|max:255',
            'email' => 'required|string|email|max:255|unique:users',
            'password' => 'required|string|min:6',
            ]);
   
           if ($validator->fails()) {
              return response()->json($validator->errors());
            } else {
               // do something
           }
       }
   

在它看起来像下面的代码之前，它被重定向到主页

这是验证器功能

protected function validator(array $data)
{
    return Validator::make($data, [
        'name' => 'required|string|max:255',
        'email' => 'required|string|email|max:255|unique:users',
        'password' => 'required|string|min:6',
    ]);
}

public function register(Request $request)
{
   
    // Here the request is validated. The validator method is located
    // inside the RegisterController, and makes sure the name, email
    // password and password_confirmation fields are required.
    $this->validator($request->all())->validate();

    // A Registered event is created and will trigger any relevant
    // observers, such as sending a confirmation email or any 
    // code that needs to be run as soon as the user is created.
    event(new Registered($user = $this->create($request->all())));

    // After the user is created, he's logged in.
    $this->guard()->login($user);

    // And finally this is the hook that we want. If there is no
    // registered() method or it returns null, redirect him to
    // some other URL. In our case, we just need to implement
    // that method to return the correct response.
    return $this->registered($request, $user)
                    ?: redirect($this->redirectPath());
}