我想将课程App\Service\SomeService
注册为服务。
这是我的services.yaml
:
services:
_defaults:
autowire: false
autoconfigure: true
public: true
App\:
resource: '../src/*'
exclude: '../src/{Entity,Migrations,Tests,Kernel.php}'
App\Controller\:
resource: '../src/Controller'
tags: ['controller.service_arguments']
someservice:
class: App\Service\SomeService
现在我运行debug:container someservice
:
Information for Service "someservice"
=====================================
---------------- -------------------------
Option Value
---------------- -------------------------
Service ID someservice
Class App\Service\SomeService
Tags -
Public yes
Synthetic no
Lazy no
Shared yes
Abstract no
Autowired no
Autoconfigured yes
---------------- -------------------------
但是,当我运行debug:container App\\Service\\SomeService
时:
Information for Service "App\Service\SomeService"
=================================================
---------------- -------------------------
Option Value
---------------- -------------------------
Service ID App\Service\SomeService
Class App\Service\SomeService
Tags -
Public yes
Synthetic no
Lazy no
Shared yes
Abstract no
Autowired no
Autoconfigured yes
---------------- -------------------------
事实证明我有另一个服务指向同一个类:
namespace App\Controller;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use App\Service\SomeService;
class DefaultController extends Controller
{
/**
* @Route("/")
* @return Response
*/
public function index()
{
var_dump($this->get('someservice') === $this->get(SomeService::class));
return new Response;
}
}
输出:
布尔(假)
为什么我注册了两个服务而不是一个?
答案 0 :(得分:4)
那是因为您在services.yaml
中注册了两次。
自动使用此行:
App\:
resource: '../src/*'
exclude: '../src/{Entity,Migrations,Tests,Kernel.php}'
另一个,手动:
someservice:
class: App\Service\SomeService
由于它们的名称不同(someservice
和App\Service\SomeService
),因此它们与Symfony不同。
我建议您删除第二个声明,并仅在控制器中使用其完全限定名称调用该服务:$this->get(SomeService::class)