Laravel错误登录重定向

// routes/web.php
Route::get('/login', 'AuthController@showLoginForm')->name('login');
Route::post('/login', 'AuthController@login');
Route::post('/logout', 'AuthController@logout')->name('logout');

// app/Http/Controllers/AuthController.php
use Illuminate\Support\Facades\Auth;
use Illuminate\Http\Request;

class AuthController extends Controller
{
    public function showLoginForm()
    {
        return view('auth.login');
    }

    public function login(Request $request)
    {
        $credentials = $request->validate([
            'email' => 'required|email',
            'password' => 'required',
        ]);

        if (Auth::attempt($credentials)) {
            // 登录成功，执行相应操作
            return redirect()->intended('/dashboard');
        }

        return redirect()->route('login')
            ->withErrors(['login' => '登录失败，请检查用户名和密码']);
    }

    public function logout()
    {
        Auth::logout();
        return redirect()->route('login');
    }
}

// resources/views/auth/login.blade.php
@if ($errors->any())
    <div class="alert alert-danger">
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif

<form method="POST" action="{{ route('login') }}">
    @csrf

    <div class="form-group">
        <label for="email">Email</label>
        <input type="email" name="email" id="email" class="form-control" required autofocus>
    </div>

    <div class="form-group">
        <label for="password">Password</label>
        <input type="password" name="password" id="password" class="form-control" required>
    </div>

    <button type="submit" class="btn btn-primary">Login</button>
</form>