php - 拉维尔 5 : How to get list of Parameters in Middleware

Question

如何在中间件中检索 route 参数列表，尝试了多种方法但总是以错误或空结果结尾:

public function handle($request, Closure $next)
{
    $request->route()->parameter('page');           //Call to a member function parameter() on null
    $request->route()->parameters();                //Call to a member function parameters() on null
    Request::capture()->getParameter('page');       //Call to undefined method Illuminate\Http\Request::getParameter()

    Route::getCurrentRoute()->getParameter('page'); //Call to a member function getParameter() on null
    Route::getCurrentRoute()->getParameters();      //Call to a member function getParameters() on null
    Route::getParameter('page');                    //Method getParameter does not exist.
}

有没有办法获取中间件中的参数列表？谢谢，

更新:(添加路线)

Route::get('test/{page}', array('uses'=>'test@test'));

Laravel 版本:5.1.20

Answer 1

您将获得 NULL 值，因为您将中间件定义为全局中间件，并且在解析路由之前运行全局中间件。

如果您需要访问路由参数，请将您的中间件用作 App\Http\Kernel::$routeMiddleware 中的路由中间件:

protected $routeMiddleware = [
    'my.middleware' => [
        \App\Http\Middleware\MyMiddleware::class,
     ],
];

Proposals to change this behavior have been rejected by the Laravel maintainers due to architectural concerns.