Symfony自动解析控制器而无需注册为服务

Question

I'm using Symfony 3 and I'm looking at how to inject services into my controllers via the constructor. I don't want to register each controller as a service.

Diving into the code I have overridden the default ControllerResolver's instantiateController method with the following:

protected function instantiateController($classname) {
    return $this->container->get($classname);
}

Note: I have passed in the container within the constructor and I am using Symfony's dependency injection component.

However this throws the error:

You have requested a non-existent service "controllers\hellocontroller"

I thought auto resolving was built into the latest version of Symfony DI. I was wondering if anyone could show me what I am doing wrong.

Thanks

Answer 1

Since Symfony 3.3 you can register controllers as services via PSR-4 autodiscovery.

# app/config/services.yml
services:
    _defaults:
        autowire: true

    App\:
        resource: ../{Controller}