Question

我制作了一个带路由的控制器并尝试了一个默认值，即控制器代码：

class luckynumber extends Controller
{
   /**
    * Matches  /lucky/number exactly
    *
    * @Route("/lucky/number", name="lucky_number")
    */
   public  function numberAction()
   {
       $number = rand(1, 100);

       return $this->render('lucky/number.html.twig', array('number' => $number));
   }

   /**
    * Matches /lucky/number/{choised} exactly
    *
    * @Route("/lucky/number/{choised}", name="choised_number", requirements={"choised":"\d+"})
    */
   public function undernumberAction(Request $request, $choised = 7) 
   {
       $numberList = array();
       for($i = 0; $i < $choised; $i++) {
           $numberList[] = rand(1,100);
       }

       $final_list = implode('-', $numberList);

       return $this->render('lucky/choised_number.html.twig', array(
           'number' => $choised,
           'list' => $final_list
       ));
   }
}

问题是，当我去 http://localhost:8000/lucky/number/ 时，它告诉我：找不到＆＃34; GET / lucky / number /的路线＆＃34; 的这里有什么问题？

Answer 1

您需要在@Route()注释选项中添加默认值，而不是在方法参数中。

@Route("/lucky/number/{choised}", name="choised_number", requirements={"choised":"\d+"}, defaults={"choised":7})

有关详细信息，请参阅@Route and @Method文档。

Answer 2

我找到的唯一方法是来自 twig文件，它是这样的：

<ul>
<li><a href="/lucky/number">lucky number</a></li>
<li><a href="/lucky/number/7">choised lucky number </a></li>
</ul>

Answer 3

您可以添加2个这样的注释：

/**
* @Route("/blog", defaults={"page"=1})
* @Route("/blog/{$page}", name="blog_list", requirements={"page"="|d+"})
*/
public function list($page)
{
    return new Response('<html><body>Welcome to my Blog'.$page.'</body></html>');
}

我正在使用 Symfony 3.4

symfony 3.1路由{占位符}默认值

3 个答案: