快速解释它是如何在内部工作的，以便您更好地理解。
Shopware首先找到定义，然后在CompilerPass过程中动态创建存储库。
https://github.com/shopware/platform/blob/v6.5.5.1/src/Core/Framework/DependencyInjection/CompilerPass/EntityCompilerPass.php#L35
在容器（aliasDefinitions属性）中，它的结果如下：

Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $aclRoleRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $aclUserRoleRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appActionButtonRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appActionButtonTranslationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appCmsBlockRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appCmsBlockTranslationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appFlowActionRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appFlowActionTranslationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appFlowEventRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appPaymentMethodRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appScriptConditionRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appScriptConditionTranslationReposito = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appTemplateRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $appTranslationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $customFieldRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $customFieldSetRelationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $customFieldSetRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $languageRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $logEntryRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $pluginRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $pluginTranslationRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $scheduledTaskRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $scriptRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $seoUrlRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $seoUrlTemplateRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $versionCommitDataRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $versionCommitRepository = {Symfony\Component\DependencyInjection\Alias} 
Shopware\Core\Framework\DataAbstractionLayer\EntityRepository $versionRepository = {Symfony\Component\DependencyInjection\Alias}

[.....]
[.....]
[.....]
[.....]

所以，换句话说，通常你有这些定义：

MySampleDefinition.php
HelloWorldDefinition.php
MyCustomEntityDefinition.php

你将能够在PHP文件上自动访问这样的存储库：

use Shopware\Core\Framework\DataAbstractionLayer\EntityRepository;

public function __construct(
    private EntityRepository $mySampleRepository,
    private EntityRepository $helloWorldRepository,
    private EntityRepository $myCustomEntityRepository,
) {
    
}

不必担心手工定义存储库.

我发现的解决方案实际上相当简单和直接：-）使用Autowire参数属性指定构造函数，如下所示：

private readonly EntityRepository $productRepository;
    ...
    public function __construct(
        #[Autowire(service: 'product.repository')] EntityRepository $productRepository
    ) {
        $this->productRepository = $productRepository;
    }

如果你遵守Shopware的命名约定，你甚至可以省略Autowire参数，在上面的例子中，变量名$productRepository将被正确解析为'product.repository'服务。（礼貌@Alex的评论见下文）