php - Lumen 角色中间件缺少参数

Question

我是 Lumen 的新手，我正在尝试通过 Lumen 文档中的示例让角色中间件正常工作: http://lumen.laravel.com/docs/middleware#middleware-parameters

但是一旦我将中间件添加到路由中，如下所示:

$app->get('/', ['middleware' => 'role:editor', 'uses' => 'IndexController@index']);

我收到错误:

at Application->Laravel\Lumen\{closure}('2', 'Missing argument 3 for App\Http\Middleware\RoleMiddleware::handle()', '/Users/peter/app/Http/Middleware/RoleMiddleware.php', '17', array('request' => object(Request), 'next' => object(Closure))) in RoleMiddleware.php line 17

当我删除中间件时，一切都会按预期工作

$app->get('/', ['uses' => 'IndexController@index']);

在app.php中:

$app->middleware([
    Illuminate\Cookie\Middleware\EncryptCookies::class,
    Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
    Illuminate\Session\Middleware\StartSession::class,
    Illuminate\View\Middleware\ShareErrorsFromSession::class,
    Laravel\Lumen\Http\Middleware\VerifyCsrfToken::class,
    App\Http\Middleware\RoleMiddleware::class
]);

应用程序\Http\Middleware\RoleMiddleware.php:

<?php

namespace App\Http\Middleware;

use Closure;

class RoleMiddleware
{
    public function handle($request, Closure $next, $role) // <-line 17
    {
        if (! $request->user()->hasRole($role)) {
            // Redirect...
        }
        return $next($request);
    }
}

希望有人能帮忙

Answer 1

似乎您必须将中间件注册为 RouteMiddleware，而不是:

$app->middleware([
    Illuminate\Cookie\Middleware\EncryptCookies::class,
    Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
    Illuminate\Session\Middleware\StartSession::class,
    Illuminate\View\Middleware\ShareErrorsFromSession::class,
    Laravel\Lumen\Http\Middleware\VerifyCsrfToken::class,
    App\Http\Middleware\RoleMiddleware::class
]);

它必须是:

$app->middleware([
    Illuminate\Cookie\Middleware\EncryptCookies::class,
    Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
    Illuminate\Session\Middleware\StartSession::class,
    Illuminate\View\Middleware\ShareErrorsFromSession::class,
    Laravel\Lumen\Http\Middleware\VerifyCsrfToken::class,
]);

$app->routeMiddleware([
    "role" => App\Http\Middleware\RoleMiddleware::class
]);

然后就可以正常工作了!