Php 使用资源路由在中间件中获取路由参数

这有点奇怪，因为我跟踪了所有关于在中间件中获取路由参数的在线信息，所有这些信息都返回NULL或错误，这是我已经尝试过的，但没有成功：

    public function handle($request, Closure $next)
    {
        $token = $request->access_token;
        // Do something with $token
    }

这个返回NULL

public function handle($request, Closure $next)
    {
        $request->route('parameter_name');
        // Do something with $token
    }

public function handle($request, Closure $next)
    {
        $request->route()->parameters();
        // Do something with $token
    }

而这个在鲁恩斯之上

public function handle($request, Closure $next)
    {
        $request->route('parameter_name');
        // Do something with $token
    }

public function handle($request, Closure $next)
    {
        $request->route()->parameters();
        // Do something with $token
    }

上面这个返回：

CheckOwner.php第22行中的FatalThroTableError:调用成员 null上的函数参数（）

我想检查的是，当前试图编辑产品的用户是否是该产品的所有者，这基于两件事：URL的'id'参数中的id和数据库中products行中的'user_id'。这就是我的代码：

中间件：

class CheckOwner
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        //Get product from $id to edit
        $product = Product::find($request->parameter('product'));
        if ($product->user_id != Auth::user()->id) {
            return redirect('home');
        }
        return $next($request);
    }
}

这就是我的路线，这是一条资源路线：

//Products controller show, store, edit, update, destroy
    Route::resource('products', 'ProductsController');

这就是我在内核页面中注册中间件的方式：

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array
     */
    protected $middleware = [
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
        \App\Http\Middleware\CheckOwner::class,
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    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,
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],

        'api' => [
            'throttle:60,1',
            'bindings',
        ],
    ];

    /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used individually.
     *
     * @var array
     */
    protected $routeMiddleware = [
        'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,

        /**** OTHER MIDDLEWARE ****/
        'localize' => \Mcamara\LaravelLocalization\Middleware\LaravelLocalizationRoutes::class,
        'localizationRedirect' => \Mcamara\LaravelLocalization\Middleware\LaravelLocalizationRedirectFilter::class,
        'localeSessionRedirect' => \Mcamara\LaravelLocalization\Middleware\LocaleSessionRedirect::class
        // REDIRECTION MIDDLEWARE
    ];
}

现在，根据上面的代码，它返回以下错误：

Macroable.php第74行中的BadMethodCallException:方法参数不存在 不存在

更新：这就是我在控制器的构造函数中使用中间件的地方：

public function __construct()
    {
        //Kick him/her out if he is not logged in
        $this->middleware('auth', ['except' => ['show']]);
        $this->middleware('checkowner', ['except' => ['create', 'store', 'show', 'update', 'delete']]);
    }

---

全局中间件在路由解析之前运行

如果需要访问路由参数，请将中间件用作路由中间件：

class CheckOwner
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        //Get product from $id to edit
        $product = Product::find($request->parameter('product'));
        if ($product->user_id != Auth::user()->id) {
            return redirect('home');
        }
        return $next($request);
    }
}

受保护的$middlewareGroups=[
“网络”=>[
\App\Http\Middleware\CheckOwner:：class，
//其余的中间件。。。
],
];

全局中间件在路由解析之前运行

如果需要访问路由参数，请将中间件用作路由中间件：

class CheckOwner
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        //Get product from $id to edit
        $product = Product::find($request->parameter('product'));
        if ($product->user_id != Auth::user()->id) {
            return redirect('home');
        }
        return $next($request);
    }
}

受保护的$middlewareGroups=[
“网络”=>[
\App\Http\Middleware\CheckOwner:：class，
//其余的中间件。。。
],
];

现在它确实将我重定向回登录页面，但在登录页面中，它给了我以下错误：“Macroable.php第74行中的BadMethodCallException:方法参数不存在。”上面的错误和重定向发生在我未登录时，从“kernel.php”中删除中间件并登录并将其加载回后，会出现与上述注释相同的错误。非常感谢，它确实将我重定向回登录页面，但在登录页面中，它给了我以下错误：“Macroable.php第74行中的BadMethodCallException:Method参数不存在。”，从“kernel.php”中删除中间件并登录并将其加载回后，会出现与上述注释相同的错误。提前谢谢