您请求了一项不存在的服务“；安全上下文”； - You have requested a non-existent service "security.context"

You have requested a non-existent service "security.context"

我创建了服务，但它不起的作用

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中的ServiceNotFoundException第268行：您已请求不存在的服务"security.context"。

security.context服务在2.6中已弃用，并拆分为两个新服务：security.authorization_checker和security.token_storage。

一些与以前版本的框架不同的用法：

// 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')) { ... }

更多信息在此公告

希望这能帮助

以下示例将起作用：

/*Symfony 4.1.3*/
$user = $this->get('security.token_storage')->getToken()->getUser();
echo $user->getId(); // USER ID SESSION