Symfony autowire/autoconfigure 不工作

Question

我创建了一个 symfony 5.3 api。我的计划是通过“EntityManagerInterface”注入“EntityManager”。

出现的错误：

Could not resolve argument $entityManager of "app\controller\createuseraccountcontroller()", maybe you forgot to register the controller as a service or missed tagging it with the "controller.service_arguments"?

我的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.

    # makes classes in src/ available to be used as services
    # this creates a service per class whose id is the fully-qualified class name
    App\:
        resource: '../src/'
        exclude:
            - '../src/DependencyInjection/'
            - '../src/Entity/'
            - '../src/Kernel.php'
            - '../src/Tests/'

我的 CreateUserAccountController.php 在 src/Controller/:

<?php
declare(strict_types=1);

namespace App\Controller;

use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class CreateUserAccountController
{
    private EntityManagerInterface $entityManager;

    function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    #[Route('/user/create', name: 'create_user_account')]
    public function __invoke(): Response
    {
        return new Response('hello world');
    }
}

我的composer.json:

{
    "type": "project",
    "license": "proprietary",
    "minimum-stability": "stable",
    "prefer-stable": true,
    "require": {
        "php": "8.0.*",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "composer/package-versions-deprecated": "1.11.99.2",
        "doctrine/doctrine-bundle": "^2.4",
        "doctrine/doctrine-migrations-bundle": "^3.1",
        "doctrine/orm": "^2.9",
        "phpseclib/phpseclib": "^3.0",
        "symfony/console": "5.3.*",
        "symfony/dependency-injection": "5.3.*",
        "symfony/dotenv": "5.3.*",
        "symfony/flex": "^1.3.1",
        "symfony/framework-bundle": "5.3.*",
        "symfony/proxy-manager-bridge": "5.3.*",
        "symfony/runtime": "5.3.*",
        "symfony/yaml": "5.3.*"
    },
    "require-dev": {
        "symfony/maker-bundle": "^1.31",
        "symfony/stopwatch": "5.3.*"
    },
    "config": {
        "optimize-autoloader": true,
        "preferred-install": {
            "*": "dist"
        },
        "sort-packages": true
    },
    "autoload": {
        "psr-4": {
            "App\": "src/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "App\Tests\": "tests/"
        }
    },
    "replace": {
        "symfony/polyfill-ctype": "*",
        "symfony/polyfill-iconv": "*",
        "symfony/polyfill-php72": "*"
    },
    "scripts": {
        "auto-scripts": {
            "cache:clear": "symfony-cmd",
            "assets:install %PUBLIC_DIR%": "symfony-cmd"
        },
        "post-install-cmd": [
            "@auto-scripts"
        ],
        "post-update-cmd": [
            "@auto-scripts"
        ]
    },
    "conflict": {
        "symfony/symfony": "*"
    },
    "extra": {
        "symfony": {
            "allow-contrib": false,
            "require": "5.3.*"
        }
    }
}

我知道我不使用管理器，但它对我不起作用。我使用的网络服务器：symfony cli webserver

有没有人知道问题出在哪里？

Answer 1

这实际上是一个有点有趣的边缘案例。

底线是 autowire 将您的控制器服务定义为私有。这反过来意味着控制器解析器只是简单地新建控制器而不是将其从容器中拉出。因此缺少参数错误消息。

请注意您的控制器没有扩展 AbstractController。 如果它扩展了，那么自动配置会知道它是一个控制器并最终使它成为 public。一切都会好起来的。

5.3 之前，services.yaml 文件包含：

    App\Controller\:
        resource: '../src/Controller/'
        tags: ['controller.service_arguments']

这些行会自动将控制器目录中的任何内容定义为控制器。大多数时候不需要它们，因为大多数控制器都扩展了 AbstractController。这就是为什么这些行最终在 5.3 中被删除的原因。

因此，如果您真的不想扩展 AbstractController，则将这些行添加回去。您可以使用 bin/console debug:container CreateUserAccountController 来查看发生了什么。

最后，您还可以选择手动将控制器服务定义为 public。类似于：

services:

    App\Controller\CreateUserAccountController:
        public: true
        tags: ['controller.service_arguments'] # optional

Symfony autowire/autoconfigure 不工作

Symfony autowire/autoconfigure not working

php

dependency-injection

symfony

symfony5