从Laravel 5中的中间件获取当前路线动作名称 [英] Get current route action name from middleware in laravel 5

问题描述

我有这样的中间件:

<?php
namespace App\Http\Middleware;

use App\Contracts\PermissionsHandlerInterface;
use Closure;

class PermissionsHanlderMiddleware {

    public $permissionsHandler;

    function __construct(PermissionsHandlerInterface $permissionsHandler) {
        $this -> permissionsHandler = $permissionsHandler;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next) {
        $routeAction = $request->route()->getActionName();

        /*
         do some operations
        */

        return $next($request);
    }

}

但是$request->route()总是返回null，我认为是这样，因为尚未随请求一起分派路由器.

but $request->route() always returns null, I think its because the router hasn't been dispatched with the request.

注意:我将中间件添加到Kernal.php全局中间件中，以便在每次请求之前运行，如下所示:

Note: I added my middleware to Kernal.php global middlewares to run before each request as the following

protected $middleware = [
        .
        .
        .
        'App\Http\Middleware\PermissionsHanlderMiddleware',
    ];

我想在执行$next($request)之前获取路由操作名称，以执行一些权限操作.我该怎么办?

I want to get route action name before the execution of $next($request) to do some permission operations. How can i do this ?

推荐答案

如果尚未调度路由器，则无法获取路由操作名称.路由器类尚未完成其工作-因此您无法执行$router->request()-它只会为空.

You cannot get the route action name if the router has not yet been dispatched. The router class has not yet done its stuff - so you cannot do $router->request() - it will just be null.

如果它与$routeMiddleware一样作为routeMiddleware运行-那么您可以执行$router->request()

If it runs as routeMiddleware as $routeMiddleware - then you can just do $router->request()

您可以在路由器运行之前在中间件中获取URI字符串-如果愿意，可以在其中执行一些逻辑:$request->segments().即通过这种方式，您可以查看URI段是否匹配特定的路由并运行一些代码.

You can get the URI string in the middleware before the router has run - and do some logic there if you like: $request->segments(). i.e. that way you can see if the URI segment matches a specific route and run some code.

我可以快速想到的一种方法就是将您的所有路线包装成这样的组:

One way I can quickly think of is just wrap all your routes in a group like this:

$router->group(['middleware' => 'permissionsHandler'], function() use ($router) {
            // Have every single route here
});

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