Symfony\Component\Routing\Exception\ InvalidParameterException

Question

我正在学习关于symfony的开放教室教程。我现在在"Les controleurs avec Symfony“一章。

我尝试打开dev.php/platform并得到这个错误

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以下是AdvertController.php代码：

<?php
//src/Neo/PlatformBundle/Controller/AdvertController.php
namespace Neo\PlatformBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Response;
//use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
class AdvertController extends Controller
{
    public function indexAction()
    {
      $url= $this->get('router')->generate(
        'neo_platform_view', //first argument : path name
        array('id' => 5)
      );
        return new Response("The url of the announcement is:".$url);
    }
public function viewAction($id)
{
  return new Response("Desplay of the announcment with id:".$id);
}
public function viewSlugAction($slug, $year, $_format)

      {
          return new Response(

              "We could desplay the announcment conrresponding the the slug '".$slug."', created in ".$year." and with the format ".$_format."."
          );
      }
}
?>

我不明白这个错误意味着什么，也不知道如何修正它。谢谢你的帮助!

Answer 1

neo_platform_view: 
    path: /advert/{id}
    defaults:
        _controller: NeoPlatformBundle:Advert:view 
    requirements: 
        id: \d+

将\id+更改为\d+ --这将修复它。如果只允许使用数字，则\d+是正确的条件。

https://symfony.com/doc/current/routing/requirements.html用于进一步阅读需求。