laravel5.4 前后台未登陆，跳转到各自的页面

<?php
'defaults' => [
'guard' => 'web',
'passwords' => 'users',
],
'guards' => [
'web' => [
'driver' => 'session',
'provider' => 'users',
], 'api' => [
'driver' => 'token',
'provider' => 'users',
], 'admin' => [
'driver' => 'session',
'provider' => 'admins',
],
],
'providers' => [
'users' => [
'driver' => 'eloquent',
'model' => App\User::class,
], 'admins' => [
'driver' => 'eloquent',
'model' => App\AdminUser::class,
],
],
'passwords' => [
'users' => [
'provider' => 'users',
'table' => 'password_resets',
'expire' => 60,
],
],

//登陆页面
Route::get('/login', "\App\Http\Controllers\LoginController@index")->name('login');
//登陆行为
Route::post('/login', "\App\Http\Controllers\LoginController@login");
Route::group(['middleware' => 'auth:web'],function (){
Route::get('/posts', '\App\Http\Controllers\PostController@index');
}
//后台
Route::group(['prefix' => 'admin'], function() { Route::get('/login', '\App\Admin\Controllers\LoginController@index');
Route::post('/login', '\App\Admin\Controllers\LoginController@login');
Route::get('/logout', '\App\Admin\Controllers\LoginController@logout'); Route::group(['middleware' => 'auth:admin'],function (){
Route::get('/home', '\App\Admin\Controllers\HomeController@index');
});});

<?phpnamespace App\Exceptions;use Exception;
use Illuminate\Auth\AuthenticationException;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;class Handler extends ExceptionHandler
{
/**
* A list of the exception types that should not be reported.
*
* @var array
*/
protected $dontReport = [
\Illuminate\Auth\AuthenticationException::class,
\Illuminate\Auth\Access\AuthorizationException::class,
\Symfony\Component\HttpKernel\Exception\HttpException::class,
\Illuminate\Database\Eloquent\ModelNotFoundException::class,
\Illuminate\Session\TokenMismatchException::class,
\Illuminate\Validation\ValidationException::class,
]; /**
* Report or log an exception.
*
* This is a great spot to send exceptions to Sentry, Bugsnag, etc.
*
* @param \Exception $exception
* @return void
*/
public function report(Exception $exception)
{
parent::report($exception);
} /**
* Render an exception into an HTTP response.
*
* @param \Illuminate\Http\Request $request
* @param \Exception $exception
* @return \Illuminate\Http\Response
*/
public function render($request, Exception $exception)
{
return parent::render($request, $exception);
} /**
* Convert an authentication exception into an unauthenticated response.
*
* @param \Illuminate\Http\Request $request
* @param \Illuminate\Auth\AuthenticationException $exception
* @return \Illuminate\Http\Response
*/
protected function unauthenticated($request, AuthenticationException $exception)
{
if ($request->expectsJson()) {
return response()->json(['error' => 'Unauthenticated.'], 401);
} if (in_array('admin', $exception->guards())) {
return redirect()->guest('/admin/login');
} #return redirect()->guest(route('login'));

return redirect()->guest(route('/')); #亲测可行

} }