Laravel的5.5认证反弹

Question

我正在关注登录教程。

我逐步编写了所有代码，但最后我无法登录，即使我提供了正确的凭据。

以下是我的代码：

的LoginController

public function getLogin()
{
    if (Auth::guard('web')->check())
    {
        return redirect()->route('dashboard');
    }
    return view('login');
}
public function postLogin(Request $request)
{

    $auth = Auth::guard('web')->attempt(['username'=>$request->username,
        'password'=>$request->password,'active'=> 1]);
    if($auth)
    {
        return redirect()->route('dashboard');

    }
    return redirect()->back()->with(['error' =>'Wrong Credentials']);


}

public function getLogout()
{
    Auth::guard('web')->logout();
    return redirect()->route('/');
}

DashboardController

public function __construct()
{
    $this->middleware('auth');
}
public function dashboard()
{
    return view('layouts.app');
}code here

中间件（VisitorsMiddleware.php）

public function handle($request, Closure $next, $guard = 'web')
{
   if(!Auth::guard($guard)->check()){
       return redirect()->route('dashboard');
   }
   return $next($request);
}

CheckRole.php

epublic function handle($request, Closure $next)
{
    $roles  = $this->getRequiredRoleForRoute($request->route());
    if($request->user()->hasRole($roles)|| !$roles)
    {
        return $next($request);
    }
    return redirect()->route('/noPermission');
}
private function getRequiredRoleForRoute($route)
{
    $actions = $route->getAction();
    return isset($actions['roles']) ? $actions['roles']: null;
}

web.php

 Route::group(['middleware'=>['visitors','roles']],function (){
 Route::get('/logout', ['as' => 'logout', 'uses' => 'LoginController@getLogout']);
 Route::get('/dashboard', ['as' => 'dashboard', 'uses' => 'DashboardController@dashboard']);});

Route::get('/', ['as' => '/', 'uses' => 'LoginController@getLogin']);
Route::post('/login', ['as' => 'login', 'uses' => 'LoginController@postLogin']);