Symfony 版本:4.1.3
我有一个应用程序,它通过路由加载器服务根据配置加载动态路由,但 Symfony 4 似乎没有 Autowiring 动态路由 Controller 。
我正在使用标准 Symfony 4 应用程序 services.yaml 文件:
/config/services.yaml
parameters:
services:
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
public: false # Allows optimizing the container by removing unused services; this also means
# fetching services directly from the container via $container->get() won't work.
# The best practice is to be explicit about your dependencies anyway.
# makes classes in src/ available to be used as services
# this creates a service per class whose id is the fully-qualified class name
Application\Web\:
resource: '../src/*'
exclude: '../src/{Search/Model,Entity,Migrations,Tests,Kernel.php}'
# controllers are imported separately to make sure services can be injected
# as action arguments even if you don't extend any base controller class
Application\Web\Controller\:
resource: '../src/Controller'
tags: ['controller.service_arguments']
路由加载器: src/Component/RouteLoader.php
<?php
namespace Application\Web\Component;
use Application\Symfony\Bundle\ConfigBundle\ReaderInterface;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;
/**
* Class RouteLoader
* @package Application\Web\Component
*/
class RouteLoader
{
/**
* @var ReaderInterface
*/
private $configurationReader;
public function __construct(ReaderInterface $configurationReader)
{
$this->configurationReader = $configurationReader;
}
public function load(): RouteCollection
{
$routes = new RouteCollection();
foreach ($this->configurationReader->find('category_navigation') as $label => $configuration) {
$slug = strtolower($label);
$route = new Route(
$configuration['url'],
[
'_controller' => [$configuration['controller'], 'dispatch'],
'categories_slug' => $slug,
'category_label' => $label,
'page_title' => $configuration['page_title'] ?? null,
'page_description' => $configuration['page_description'] ?? null,
],
[],
[],
'',
[],
['GET']
);
$routes->add($slug . '.home', $route);
}
return $routes;
}
}
Controller 构造函数: src/Controller/Page.php
<?php
namespace Application\Web\Controller;
//.... other class code
public function __construct(
ClientInterface $client,
ReaderInterface $configurationReader,
\Twig_Environment $twigEnvironment,
ContentSearcher $contentSearcher,
Environment $environment,
TokenStorageInterface $tokenStorage,
UrlGeneratorInterface $urlGenerator
)
当我尝试加载页面时,Symfony 发出以下错误:
Controller "\Application\Web\Controller\Page" has required constructor arguments and does not exist in the container. Did you forget to define such a service?
但是,当我直接在 config/routes.yaml
文件中定义路由时, Controller 会自动连接,没有任何问题!
我的问题是:
- 这是否是 Symfony Autowiring 功能的限制,即不支持动态路由 Controller ?
- 在定义使 Autowiring 工作的路由时,我是否遗漏了什么?
- 我是否可能发现了错误?
有什么想法吗?
编辑:堆栈跟踪
InvalidArgumentException:
Controller "\Application\Web\Controller\Page" has required constructor arguments and does not exist in the container. Did you forget to define such a service?
at vendor/symfony/http-kernel/Controller/ContainerControllerResolver.php:62
at Symfony\Component\HttpKernel\Controller\ContainerControllerResolver->instantiateController('\\Application\\Web\\Controller\\Page')
(vendor/symfony/framework-bundle/Controller/ControllerResolver.php:54)
at Symfony\Bundle\FrameworkBundle\Controller\ControllerResolver->instantiateController('\\Application\\Web\\Controller\\Page')
(vendor/symfony/http-kernel/Controller/ControllerResolver.php:49)
at Symfony\Component\HttpKernel\Controller\ControllerResolver->getController(object(Request))
(vendor/symfony/http-kernel/Controller/TraceableControllerResolver.php:38)
at Symfony\Component\HttpKernel\Controller\TraceableControllerResolver->getController(object(Request))
(vendor/symfony/http-kernel/HttpKernel.php:132)
at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
(vendor/symfony/http-kernel/HttpKernel.php:66)
at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
(vendor/symfony/http-kernel/Kernel.php:188)
at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
(public/index.php:37)
ArgumentCountError:
Too few arguments to function Application\Web\Controller\Base::__construct(), 0 passed in /var/www/html/vendor/symfony/http-kernel/Controller/ControllerResolver.php on line 133 and exactly 7 expected
at src/Controller/Base.php:55
at Application\Web\Controller\Base->__construct()
(vendor/symfony/http-kernel/Controller/ControllerResolver.php:133)
at Symfony\Component\HttpKernel\Controller\ControllerResolver->instantiateController('\\Application\\Web\\Controller\\Page')
(vendor/symfony/http-kernel/Controller/ContainerControllerResolver.php:55)
at Symfony\Component\HttpKernel\Controller\ContainerControllerResolver->instantiateController('\\Application\\Web\\Controller\\Page')
(vendor/symfony/framework-bundle/Controller/ControllerResolver.php:54)
at Symfony\Bundle\FrameworkBundle\Controller\ControllerResolver->instantiateController('\\Application\\Web\\Controller\\Page')
(vendor/symfony/http-kernel/Controller/ControllerResolver.php:49)
at Symfony\Component\HttpKernel\Controller\ControllerResolver->getController(object(Request))
(vendor/symfony/http-kernel/Controller/TraceableControllerResolver.php:38)
at Symfony\Component\HttpKernel\Controller\TraceableControllerResolver->getController(object(Request))
(vendor/symfony/http-kernel/HttpKernel.php:132)
at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
(vendor/symfony/http-kernel/HttpKernel.php:66)
at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
(vendor/symfony/http-kernel/Kernel.php:188)
at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
(public/index.php:37)
最佳答案
回答您的问题:
- 不,至少在这种情况下不是。路由加载器的唯一作用是构建路由集合,以便可以将请求与其进行匹配。通过提供
_controller
参数,您可以告诉 SF 哪个 Controller 映射到该路由。依赖注入(inject)组件负责将 Controller 作为服务自动加载到容器中。但是,如果 Controller 到达 ContainerControllerResolver 并从第 50-52 行传递,则肯定是由于您的 Controller 未注册为服务(或者更准确地说,无论是什么)ContainerControllerResolver::instantiateController()
中的$class
值在容器中不存在。 - 我无法复制,因为我没有你们的服务。但我最好的猜测是,将 _controller 参数作为某种可调用数组传递可能不起作用。尝试将其作为字符串传递,例如
Application/Web/Pages::instance
。ContainerControllerResolver
可以使用它。 - 我有疑问,但这是有可能的。
如果能够看到堆栈跟踪将会非常有帮助。
更新:
字符串中有双反斜杠,与您的类名相符。尝试重新格式化为:Application\Web\Controller\Page
。
如果您想在重构之前确定此修复,请运行 bin/console debug:container Page
并检查您的页面 Controller 作为服务是否存在。如果确实如此,那么问题肯定是带有双反斜杠的 FQCN。
关于php - Symfony 4 不 Autowiring 动态路由 Controller ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51850741/