如何将所有 404 错误重定向到公共路由? [英] How to redirect all 404 errors to common route?

问题描述

我正在使用 symfony2 的 404 机制，该机制基本正常.

I'm using symfony2's 404 mechanism, which mostly works okay.

这是一个场景.假设你去 www.site.tld/whatever - 那里/whatever 不存在.转到页面后，URL 仍然是 www.site.tld/whatever - 但框架会返回 404 页面.

Here's a scenario. Say you go to www.site.tld/whatever - where /whatever does not exist. After you go to the page, the URL remains www.site.tld/whatever - but a 404 page is returned by the framework.

如何强制每个 404 到一个公共路由，例如 www.site.tld/not-found，以便原始请求的路由不会保留在 URL BAR 中?

How can I force EVERY 404 to a common route, such as www.site.tld/not-found, so that the original requested route does NOT remain in the URL BAR?

推荐答案

尽管它显然有效，但已接受的答案似乎有点笨拙，尽管它看起来确实会给出 301 状态代码而不是 404.

The accepted answer to this seems a little hacky although it clearly works, although it does seem like it would give a 301 status code rather than a 404.

>

另一种方法是使用事件侦听器侦听 NotFoundHttpException 像这样..

use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;

class NotFound404Listener
{
    protected $router;

    public function __construct(UrlGeneratorInterface $router)
    {
        $this->router = $router;
    }

    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        if ($event->getException() instanceof NotFoundHttpException) {
            $url = $this->router->generateUrl(/** your route **/);

            $response = new RedirectResponse($url, 404);
            // Set redirect response to url of route with a 404 header

            $event->setResponse($response);
        }
    }
}

使用服务 (YAML)..

with the service (YAML)..

not.found.404.listener:
    class: %not.found.404.listsner.class%
    arguments:
        - @router
    tags:
        - { name: kernel.event_listener, event: kernel.exception, 
                                            method: onKernelException }

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