Symfony - 类的未定义方法名为 "render"

Question

我是 symfony 框架的新手。它会引发渲染错误。我尝试了所有建议

@App/default/index.html.twig
AppBundle:default:index.html.twig
default/index.html.twig

路由.yml

app:
    resource: "@AppBundle/Controller/"
    type:     annotation

lucky_number:
    path:     /lucky/number/{count}
    defaults: { _controller: AppBundle:Lucky:number }

LuckyController.php

namespace AppBundle\Controller;

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

class LuckyController
{
    /**
     * @Route("/lucky/number/{count}")
     */
    public function numberAction($count)
    {
        $number = rand(0, 100);
        $html = $this->render('@App/default/index.html.twig','number'=>$number);
        //$html = $this->container->get('templating')->render('AppBundle:default:index.html.twig',array('number' => $number));
        //$html = $this->container->get('templating')->render('default/index.html.twig',array('number' => $number));
        return new Response($html);
    }
}

错误:

Attempted to call an undefined method named "render" of class "AppBundle\Controller\LuckyController".

Answer 1

您忘记使用 symfony Controller 扩展您的 Controller 类。

namespace AppBundle\Controller;

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

class LuckyController extends Controller // <-- HERE
{
    /**
     * @Route("/lucky/number/{count}")
     */
    public function numberAction($count)
    {
        $number = rand(0, 100);
        return $this->render('AppBundle:default:index.html.twig',array('number' => $number));
    }
}