> Symfony中文手册 > 在没有自定义控制器的情况下如何配置一个重定向

在没有自定义控制器的情况下如何配置一个重定向

有时,一个URL需要跳转到另一个的URL。你可以在控制器中创建一个新的action,这个action的唯一任务就是“重定向”,但使用FrameworkBundle 的 RedirectController 则要简单的多。

你可以重定向到一个指定的路径(如 /about )或者指定一个路由名称(如 homepage )。

使用路径重定向 ¶

假如你的程序没有对/ 路径指定默认的控制器,你希望把它的请求给重定向到/app。那么你需要使用urlRedirectAction() 这个action来把它重定向到新的url:

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# app/config/routing.yml
 
# load some routes - one should ultimately have the path "/app"
AppBundle:
    resource: '@AppBundle/Controller/'
    type:     annotation
    prefix:   /app
 
# redirecting the root
root:
    path: /
    defaults:
        _controller: FrameworkBundle:Redirect:urlRedirect
        path: /app
        permanent: true
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<!-- app/config/routing.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="Http://symfony.com/schema/routing"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/routing
        http://symfony.com/schema/routing/routing-1.0.xsd">
 
    <!-- load some routes - one should ultimately have the path "/app" -->
    <import resource="@AppBundle/Controller/"
        type="annotation"
        prefix="/app"
    />
 
    <!-- redirecting the root -->
    <route id="root" path="/">
        <default key="_controller">FrameworkBundle:Redirect:urlRedirect</default>
        <default key="path">/app</default>
        <default key="permanent">true</default>
    </route>
</routes>
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// app/config/routing.php
use Symfony\Component\Routing\RouteCollection;
use Symfony\Component\Routing\Route;
 
$collection = new RouteCollection();
 
// load some routes - one should ultimately have the path "/app"
$appRoutes = $loader->import("@AppBundle/Controller/", "annotation");
$appRoutes->setPrefix('/app');
 
$collection->addCollection($appRoutes);
 
// redirecting the root
$collection->add('root', new Route('/', array(
    '_controller' => 'FrameworkBundle:Redirect:urlRedirect',
    'path'        => '/app',
    'permanent'   => true,
)));
 
return $collection;

在这个例子中,你为/路径配置了路由,并且让RedirectController把它重定向到/app路径。这个permanent开关,告诉action发出301HTTP状态码来替代默认的302状态码。

使用路由重定向 ¶

假设你从WordPress网站迁移到Symfony,你想去重定向/wp-adminsonata_admin_dashboard这个路由。你并不知道路径,只知道路由名称。这可以通过redirectAction() 这个action来实现:

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# app/config/routing.yml
 
# ...
 
# redirecting the admin home
root:
    path: /wp-admin
    defaults:
        _controller: FrameworkBundle:Redirect:redirect
        route: sonata_admin_dashboard
        permanent: true
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<!-- app/config/routing.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/routing
        http://symfony.com/schema/routing/routing-1.0.xsd">
 
    <!-- ... -->
 
    <!-- redirecting the admin home -->
    <route id="root" path="/wp-admin">
        <default key="_controller">FrameworkBundle:Redirect:redirect</default>
        <default key="route">sonata_admin_dashboard</default>
        <default key="permanent">true</default>
    </route>
</routes>
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// app/config/routing.php
use Symfony\Component\Routing\RouteCollection;
use Symfony\Component\Routing\Route;
 
$collection = new RouteCollection();
// ...
 
// redirecting the root
$collection->add('root', new Route('/wp-admin', array(
    '_controller' => 'FrameworkBundle:Redirect:redirect',
    'route'       => 'sonata_admin_dashboard',
    'permanent'   => true,
)));
 
return $collection;

因为你是重定向路由,而不是路径,redirect action所需的route选项被调用,取代了urlRedirect action所需的path