PostLogin无法正常工作！ Laravel 5.2

Question

我在项目中使用Laravel 5.2 因此，当我尝试以登录形式登录时，它会继续加载并向同一页面唱歌而不是仪表板！ 我一直试图解决这个问题，但没有成功 请帮帮我

我的Route.php代码

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

//Route::get('/noPermission',function(){
//   return view('permission.noPermission');
//});

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

这是我的登录控制器代码

<?php

namespace App\Http\Controllers;
use App\Http\Controllers\Controller;

use Illuminate\Http\Request;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Auth;

class LoginController extends Controller
{


    use AuthenticatesUsers;


    protected $username = 'username'; 
    protected $redirectTo = '/dashboard';
    protected $guard = 'web';

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

}

我的信息中心代码

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class DashboardController extends Controller
{
    public function __construct()
    {
    $this->middleware('web');
    }
    public function dashboard()
    {
        return view('layouts.master');
    }
}

这是我的checkrole.php代码

<?php

namespace App\Http\Middleware;

use Closure;

class CheckRole
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $roles=$this->getRequiredRoleForRoute($request->route());
        if($request->user()->hasRole($roles) || !$roles)
        {
            return $next($request);
        }
        return redirect('/noPermission');
    }
private function getRequiredRoleForRoute($route)
{
$actions= $route->getAction();
return isset($actions['roles']) ? $actions['roles'] : null;
}
}