Laravel LoginController和RegisterController的JSON错误应该是字符串而不是数组

我使用的是Laravel5.5.14（

php artisan--version

）。我正在使用Laravel创建一个RESTAPI

当我出现错误时，它的形状如下所示：

[
    'message' => 'The given data was invalid.',
    'errors' => [
        'email' => ['The email field is required.'],
        'password' => ['The password field is required.']
    ]
]

public function __construct()
{
    $this->middleware('guest')->except('logout');
}

public function login(Request $request)
{
    $this->validateLogin($request);

    if ($this->attemptLogin($request)) {
        $user = $this->guard()->user()->load('pets');
        $user->generateToken();

        return $user;
    }

    return $this->sendFailedLoginResponse($request);
}

public function logout(Request $request)
{
    $user = Auth::guard('api')->user();

    if ($user) {
        $user->api_token = null;
        $user->save();
    }

    return ['ok' => true];
}

public function __construct()
{
    $this->middleware('guest');
}

/**
 * The user has been registered.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  mixed  $user
 * @return mixed
 */
protected function registered(Request $request, $user)
{
    $user->generateToken();

    return response()->json($user, 201);
}

/**
 * Get a validator for an incoming registration request.
 *
 * @param  array  $data
 * @return \Illuminate\Contracts\Validation\Validator
 */
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|confirmed',
    ]);
}

/**
 * Create a new user instance after a valid registration.
 *
 * @param  array  $data
 * @return \App\User
 */
protected function create(array $data)
{
    return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
    ]);
}

我的

我们看到在

errors

数组中，每个字段（

email

，

password

）不是字符串，而是单个字符串的数组。是否会有不止一个错误？这就是为什么它是一个数组？即使有不止一个错误，我想告诉Laravel只报告第一个没有数组的错误，这可能吗

在我的

api.php

中，我有：

Route::post('login', 'Auth\LoginController@login');
Route::post('logout', 'Auth\LoginController@logout');
Route::post('register', 'Auth\RegisterController@register');

我的

LoginController.php

如下所示：

[
    'message' => 'The given data was invalid.',
    'errors' => [
        'email' => ['The email field is required.'],
        'password' => ['The password field is required.']
    ]
]

public function __construct()
{
    $this->middleware('guest')->except('logout');
}

public function login(Request $request)
{
    $this->validateLogin($request);

    if ($this->attemptLogin($request)) {
        $user = $this->guard()->user()->load('pets');
        $user->generateToken();

        return $user;
    }

    return $this->sendFailedLoginResponse($request);
}

public function logout(Request $request)
{
    $user = Auth::guard('api')->user();

    if ($user) {
        $user->api_token = null;
        $user->save();
    }

    return ['ok' => true];
}

public function __construct()
{
    $this->middleware('guest');
}

/**
 * The user has been registered.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  mixed  $user
 * @return mixed
 */
protected function registered(Request $request, $user)
{
    $user->generateToken();

    return response()->json($user, 201);
}

/**
 * Get a validator for an incoming registration request.
 *
 * @param  array  $data
 * @return \Illuminate\Contracts\Validation\Validator
 */
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|confirmed',
    ]);
}

/**
 * Create a new user instance after a valid registration.
 *
 * @param  array  $data
 * @return \App\User
 */
protected function create(array $data)
{
    return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
    ]);
}

我的

RegisterController.php

如下所示：

[
    'message' => 'The given data was invalid.',
    'errors' => [
        'email' => ['The email field is required.'],
        'password' => ['The password field is required.']
    ]
]

public function __construct()
{
    $this->middleware('guest')->except('logout');
}

public function login(Request $request)
{
    $this->validateLogin($request);

    if ($this->attemptLogin($request)) {
        $user = $this->guard()->user()->load('pets');
        $user->generateToken();

        return $user;
    }

    return $this->sendFailedLoginResponse($request);
}

public function logout(Request $request)
{
    $user = Auth::guard('api')->user();

    if ($user) {
        $user->api_token = null;
        $user->save();
    }

    return ['ok' => true];
}

public function __construct()
{
    $this->middleware('guest');
}

/**
 * The user has been registered.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  mixed  $user
 * @return mixed
 */
protected function registered(Request $request, $user)
{
    $user->generateToken();

    return response()->json($user, 201);
}

/**
 * Get a validator for an incoming registration request.
 *
 * @param  array  $data
 * @return \Illuminate\Contracts\Validation\Validator
 */
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|confirmed',
    ]);
}

/**
 * Create a new user instance after a valid registration.
 *
 * @param  array  $data
 * @return \App\User
 */
protected function create(array $data)
{
    return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
    ]);
}

发件人：

$errors

变量将是

illible\Support\MessageBag

显示错误的示例如下：

@if（$errors->any（））

@foreach（$errors->all（）作为$error）
{{$error}}
@endforeach

@恩迪夫

将

验证登录

覆盖到以下内容，或者您可以给它一个

不同的

名称，并从

控制器

功能调用它-

public function validateLogin($request){
  $rules = [
        'user_name' => 'required|string',
        'password' => 'required|string',
    ];
    $validator = Validator::make($request->all(), $rules);

    if ($validator->fails()) {
        $errorResponse = $this->validationErrorsToString($validator->errors());
        return response()->json(['message' => 'The given data was invalid.', 'errors' => $errorResponse],400);
    }
}

并使用此方法创建另一个函数，将您的响应转换为预期格式-

private function validationErrorsToString($errArray) {
    $valArr = array();
    foreach ($errArray->toArray() as $key => $value) {
        $valArr[$key] = $value[0];
    }
    return $valArr;
}

不要忘了在控制器文件的

开始处添加此项-

use Validator;

希望这对您有所帮助：）
谢谢您，先生。但是，我没有使用blade或php来渲染。我在用react。特别是
redux form
，所以我需要
errors
成为
字段名：string
，如果可能的话。@Blagoh您可以将对象转换成您想要的任何东西，然后再将其发送到React。如果需要字符串，请为每个错误消息创建一个变量，并将这些变量发送给React。是否有一个可以编辑的单一/全局位置，用于所有错误？我对Laravel不是很在行，所以这些聊天对我的学习很有帮助。@Blagoh你可以为此创建一个类似的transformer方法。谢谢Alexey，我会尝试一下。你能给我们展示一下$this->validateLogin（$request）吗实现？？谢谢@Sohel0415-我在
LoginController.php
中找不到
validateLogin
方法，还有其他地方可以使用吗？