symfony 3 Distrine LIstener服务注入token_storage不起作用

Question

I have a doctrine listener which needs the get the current logged in user.

class DoctrineListener
{
    /**
     * @var null|TokenInterface
     */
    private $token;

    /**
     * DoctrineListener constructor.
     *
     * @param TokenStorageInterface $tokenStorage
     */
    public function __construct(TokenStorageInterface $tokenStorage)
    {
        $this->token = $tokenStorage->getToken();

        var_dump($this->token);
    }

and in my service.yml:

doctrine.listener:
    class: AppBundle\EventListener\DoctrineListener
    arguments:
      - '@security.token_storage'
    public: false
    tags:
      - { name: doctrine.event_listener, event: preFlush, method: preFlush }

The dump always returns me null when I try to use it in this listener. I inject the token_storage_service in other services and it works well.

I'm under symfony 3.1, with a rest API. And i send my authorizations header with Postman.

Can someone tell me what's wrong with my code ?

Thanks in advance.

Answer 1

尝试在preFlush方法中而不是在构造函数中调用$tokenStorage->getToken() 。