<?php

namespace AppBundle\Controller;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

class BaseController extends Controller
{
    public function __construct(Request $request) {
        if($request->getSession()->get('userid')){
            echo 'yes';
        }else{
            return $this->redirect($this->generateUrl('login'));
        }
       // echo 'aaasss';
    }
}

想在构造方法里判断登录状态，symfony不支持？报错啊