Php 您请求了一项不存在的服务“；“安全.背景”；

我创建了服务，但它不工作

services:
    redirectionListener:
          class: Front\EcommerceBundle\Listener\RedirectionListener
          arguments: ["@service_container","@session"]
          tags:
            - { name: kernel.event_listener, event: kernel.request, method: onKernelRequest }

这是我的课

namespace Front\EcommerceBundle\Listener;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;

class RedirectionListener
{
    public function __construct(ContainerBuilder $container, Session $session)
    {
        $this->session = $session;
        $this->router = $container->get('router');
        $this->securityContext = $container->get('security.context');
    }

    public function onKernelRequest(GetResponseEvent $event)
    {
        $route = $event->getRequest()->attributes->get('_route');

        if ($route == 'livraison' || $route == 'validation') {
            if ($this->session->has('panier')) {
                if (count($this->session->get('panier')) == 0)
                    $event->setResponse(new RedirectResponse($this->router->generate('panier')));
            }

            if (!is_object($this->securityContext->getToken()->getUser())) {
                $this->session->getFlashBag()->add('notification','Vous devez vous identifier');
                $event->setResponse(new RedirectResponse($this->router->generate('fos_user_security_login')));
            }
        }
    }
}

Container.php第268行中的ServiceNotFoundException:您已请求 一个不存在的服务“security.context”

---

security.context

服务在2.6中被弃用，并被分成两个新服务：

security.authorization\u checker

和

security.token\u storage

与以前版本的框架有一些不同的用法：

// Symfony 2.5
$user = $this->get('security.context')->getToken()->getUser();
// Symfony 2.6
$user = $this->get('security.token_storage')->getToken()->getUser();

// Symfony 2.5
if (false === $this->get('security.context')->isGranted('ROLE_ADMIN')) { ... }
// Symfony 2.6
if (false === $this->get('security.authorization_checker')->isGranted('ROLE_ADMIN')) { ... }

更多信息发布

---

希望以下示例能够提供帮助：

/*Symfony 4.1.3*/

$user = $this->get('security.token_storage')->getToken()->getUser();

echo $user->getId(); // USER ID SESSION

---

两个无关的建议：当您只需要路由器和security.token_存储时，无需注入整个容器。并且根本不注入会话，只是从请求中提取它：$event=>getRequest（）->getSession（）；