身份验证中间件错误

Question

我正在构建一个 Laravel 电子商务网站，但我似乎在登录页面时遇到了问题。当我运行 /auth/login 时，我收到以下错误消息：

ErrorException in 331b09d5d399f256b356d4ae58180ae01edf5c37.php 第 12 行：未定义变量：错误（查看：/home/thomas/ushop/resources/views/auth/login.blade.php）

in 331b09d5d399f256b356d4ae58180ae01edf5c37.php line 12
at CompilerEngine->handleViewException(object(ErrorException), '1') in PhpEngine.php line 44
at PhpEngine->evaluatePath('/home/thomas/ushop/storage/framework/views/331b09d5d399f256b356d4ae58180ae01edf5c37.php', array('__env' => object(Factory), 'app' => object(Application))) in CompilerEngine.php line 59
at CompilerEngine->get('/home/thomas/ushop/resources/views/auth/login.blade.php', array('__env' => object(Factory), 'app' => object(Application))) in View.php line 149
at View->getContents() in View.php line 120
at View->renderContents() in View.php line 85
at View->render() in Response.php line 53
at Response->setContent(object(View)) in Response.php line 199
at Response->__construct(object(View)) in Router.php line 1087
at Router->prepareResponse(object(Request), object(View)) in ControllerDispatcher.php line 95
at ControllerDispatcher->Illuminate\Routing\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in RedirectIfAuthenticated.php line 24
at RedirectIfAuthenticated->handle(object(Request), object(Closure))
at call_user_func_array(array(object(RedirectIfAuthenticated), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
at Pipeline->Illuminate\Routing\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
at Pipeline->then(object(Closure)) in ControllerDispatcher.php line 96
at ControllerDispatcher->callWithinStack(object(AuthController), object(Route), object(Request), 'getLogin') in ControllerDispatcher.php line 54
at ControllerDispatcher->dispatch(object(Route), object(Request), 'App\Http\Controllers\Auth\AuthController', 'getLogin') in Route.php line 174
at Route->runController(object(Request)) in Route.php line 140
at Route->run(object(Request)) in Router.php line 724
at Router->Illuminate\Routing\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
at Pipeline->Illuminate\Routing\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
at Pipeline->then(object(Closure)) in Router.php line 726
at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 699
at Router->dispatchToRoute(object(Request)) in Router.php line 675
at Router->dispatch(object(Request)) in Kernel.php line 246
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in CheckForMaintenanceMode.php line 44
at CheckForMaintenanceMode->handle(object(Request), object(Closure))
at call_user_func_array(array(object(CheckForMaintenanceMode), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 136
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
at Pipeline->Illuminate\Routing\{closure}(object(Request))
at call_userm(object(Closure), object(Request)) in Pipeline.php line 103
at Pipeline->then(object(Closure)) in Kernel.php line 132
at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 99
at Kernel->handle(object(Request)) in index.php line 54

这让我很困惑，因为我使用的是 Laravel 开箱即用的用户系统。有没有可能是因为还没有创建表单错误？

编辑这是我的代码：

    @extends('vendor.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <div class="panel panel-default">
                <div class="panel-heading">Login</div>
                <div class="panel-body">
                    <form class="form-horizontal" role="form" method="POST" action="{{ url('/login') }}">
                        {!! csrf_field() !!}

                        <div class="form-group{{ $errors->has('email') ? ' has-error' : '' }}">
                            <label class="col-md-4 control-label">E-Mail Address</label>

                            <div class="col-md-6">
                                <input type="email" class="form-control" name="email" value="{{ old('email') }}">

                                @if ($errors->has('email'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('email') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('password') ? ' has-error' : '' }}">
                            <label class="col-md-4 control-label">Password</label>

                            <div class="col-md-6">
                                <input type="password" class="form-control" name="password">

                                @if ($errors->has('password'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('password') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <div class="checkbox">
                                    <label>
                                        <input type="checkbox" name="remember"> Remember Me
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <button type="submit" class="btn btn-primary">
                                    <i class="fa fa-btn fa-sign-in"></i>Login
                                </button>

                                <a class="btn btn-link" href="{{ url('/password/reset') }}">Forgot Your Password?</a>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

EDIT2：我的控制器代码，虽然它是 Laravel 开箱即用的，因为它默认提供

    <?php

namespace App\Http\Controllers\Auth;

use App\User;
use Validator;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\ThrottlesLogins;
use Illuminate\Foundation\Auth\AuthenticatesAndRegistersUsers;

class AuthController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Registration & Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users, as well as the
    | authentication of existing users. By default, this controller uses
    | a simple trait to add these behaviors. Why don't you explore it?
    |
    */

    use AuthenticatesAndRegistersUsers, ThrottlesLogins;

    /**
     * Where to redirect users after login / registration.
     *
     * @var string
     */
    protected $redirectTo = '/';

    /**
     * Create a new authentication controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware($this->guestMiddleware(), ['except' => 'logout']);
    }

    /**
     * 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|max:255',
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|min:6|confirmed',
        ]);
    }

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

Answer 1

这个错误是因为你没有在你的视图中设置errors变量，你必须在你的控制器上

 return view('auth', ['errors' => $erros]);