Laravel5.2Auth无法正常工作-Laravel5.2AuthnotWorking

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Laravel 5.2 introduces the middleware groups concept: you can specify that one or more middleware belongs to a group, and you can apply a middleware group to one or more routes

Laravel 5.2引入了中间件组概念：您可以指定一个或多个中间件属于一个组，并且可以将中间件组应用于一个或多个路由

By default Laravel 5.2 defines a group named web, used to group the middleware handling session and other http utilities:

默认情况下，Laravel 5.2定义了一个名为web的组，用于对中间件处理会话和其他http实用程序进行分组：

protected $middlewareGroups = [
'web' => [
    \App\Http\Middleware\EncryptCOOKIEs::class,
    \Illuminate\COOKIE\Middleware\AddQueuedCOOKIEsToResponse::class,
    \Illuminate\Session\Middleware\StartSession::class,
    \Illuminate\View\Middleware\ShareErrorsFromSession::class,
    \App\Http\Middleware\VerifyCsrfToken::class,
],

So, if you want session handling, you should use this middleware group for all the routes in which you want to use authentication:

因此，如果要进行会话处理，则应将此中间件组用于要使用身份验证的所有路由：

Route::group( [ 'middleware' => ['web'] ], function () 
{
    //this route will use the middleware of the 'web' group, so session and auth will work here         
    Route::get('/', function () {
        dd( Auth::user() );
    });       
});

UPDATE FOR LARAVEL VERSION >= 5.2.27

LARAVEL VERSION的更新> = 5.2.27

As of Laravel 5.2.27 version, all the routes defined in routes.php are using by default the web middleware group. That is achieved in app/Providers/RouteServiceProvider.php :

从Laravel 5.2.27版本开始，routes.php中定义的所有路由默认使用Web中间件组。这是在app / Providers / RouteServiceProvider.php中实现的：

protected function mapWebRoutes(Router $router)
{
    $router->group([
        'namespace' => $this->namespace, 'middleware' => 'web'
    ], function ($router) {
        require app_path('Http/routes.php');
    });
}

So you don't need anymore to add manually the web middleware group to your routes.

因此，您不再需要手动将Web中间件组添加到路由中。

Anyhow, if you want to use the default authentication for a route, you still need bind the auth middleware to the route

无论如何，如果你想对路由使用默认身份验证，你仍然需要将auth中间件绑定到路由