php – Symfony3 Facebook登录 – redirect_uri URL转换为亲戚

<?php
namespace VendorGiftBundleController;

use SensioBundleFrameworkExtraBundleConfigurationRoute;
use SymfonyBundleFrameworkBundleControllerController;
use SymfonyComponentHttpFoundationRequest;
use SymfonyComponentHttpFoundationResponse;
use SymfonyComponentRoutingGeneratorUrlGeneratorInterface;
use SymfonyComponentRoutingGeneratorUrlGenerator;

class FacebookConnectController extends Controller
{
    /**
     * @Route("/connect/facebook",name="connect_facebook")
     */
    public function connectFacebookAction(Request $request)
    {

        // redirect to Facebook
        $redir = $this->generateUrl('connect_facebook_check',array(),UrlGeneratorInterface::ABSOLUTE_URL);
        $facebookOAuthProvider = $this->get('app.facebook_provider');
        $url = $facebookOAuthProvider->getAuthorizationUrl([
            // these are actually the default scopes
            'scopes' => ['public_profile','email'],'redirect_uri' => [$redir],]);
        return $this->redirect($url);
    }
    /**
     * @Route("/connect/facebook-check",name="connect_facebook_check")
     */
    public function connectFacebookActionCheck()
    {
        // will not be reached!
    }
}

当我点击触发connectFacebookAction函数的按钮时,我得到FB错误redirect_uri URL必须是绝对的.它就像忽略了我在参数中给出的绝对URL.

我究竟做错了什么？

编辑：授权网址在任何情况下都会发生变化,或者对应用程序保持不变？我可以直接硬编码,直到我弄清楚如何解决这个问题？

编辑2：我弄清楚为什么URL是相对的而不是绝对的.
这是我的服务配置：

services:
    app.facebook_provider:
        class: LeagueOAuth2ClientProviderFacebook
        arguments:
            -
                clientId: %facebook_app_id%
                clientSecret: %facebook_app_secret%
                graphApiVersion: v2.8
                redirectUri: "@=service('router').generate('connect_facebook_check',{},true)"

如何从服务中的路由生成绝对URL？