0

在配置文件services.yaml中，我创建了几个具有名称的服务

cart.storage.session:
    class: App\Cart\Storage\SessionStorage
    arguments:
        - '%cart.storage.session_key%'

cart.calculator:
    class: App\Cart\Cost\SimpleCost

cart:
    class: App\Cart\Cart
    arguments:
        - '@cart.storage.session'
        - '@cart.calculator'

我在我的控制器中使用这些服务

$cart = $this->container->get('cart');

但是由于某种原因，通过这样的服务调用，我得到了一个例外。

服务“cart”未找到：即使它存在于应用程序的容器中，“App\Controller\CartController”中的容器是一个较小的服务定位器，只知道“doctrine”、“http_kernel”、“parameter_bag”、“request_stack” ”、“路由器”、“security.authorization_checker”、“security.csrf.token_manager”、“security.token_storage”和“session”服务。尝试改用依赖注入。

bin/console debug:container命令显示容器包含我的服务，但由于某种原因它们没有命名

-------------------------------------------------------------
 Service ID                     Class name
--------------------------------------------------------------

App\Cart\Cart                    App\Cart\Cart
App\Cart\CartItem                App\Cart\CartItem
App\Cart\Cost\BigCost            App\Cart\Cost\BigCost
App\Cart\Cost\BirthdayCost       App\Cart\Cost\BirthdayCost
App\Cart\Cost\DummyCost          App\Cart\Cost\DummyCost
App\Cart\Cost\FourCost           App\Cart\Cost\FourCost
App\Cart\Cost\FridayCost         App\Cart\Cost\FridayCost
App\Cart\Cost\MinCost            App\Cart\Cost\MinCost
App\Cart\Cost\NewYearCost        App\Cart\Cost\NewYearCost
App\Cart\Cost\SimpleCost         App\Cart\Cost\SimpleCost
App\Cart\Storage\DBStorage       App\Cart\Storage\DBStorage
App\Cart\Storage\HybridStorage   App\Cart\Storage\HybridStorage
App\Cart\Storage\MemoryStorage   App\Cart\Storage\MemoryStorage
App\Cart\Storage\SessionStorage  App\Cart\Storage\SessionStorage
App\Controller\CartController    App\Controller\CartController

然后我改变了我的services.yaml如下

cart.storage.session:
    class: App\Cart\Storage\SessionStorage
    arguments:
        - '%cart.storage.session_key%'
App\Cart\Storage\SessionStorage: '@cart.storage.session'

cart.calculator:
    class: App\Cart\Cost\SimpleCost
App\Cart\Cost\SimpleCost: '@cart.calculator'

cart:
    class: App\Cart\Cart
    arguments:
        - '@cart.storage.session'
        - '@cart.calculator'
App\Cart\Cart: '@cart'

之后，我的服务获得了名称，并且bin/console debug:container命令开始显示以下内容

-------------------------------------------------------------
 Service ID                     Class name
--------------------------------------------------------------

App\Cart\Cart                    alias for "cart"
App\Cart\CartItem                App\Cart\CartItem
App\Cart\Cost\BigCost            App\Cart\Cost\BigCost
App\Cart\Cost\BirthdayCost       App\Cart\Cost\BirthdayCost
App\Cart\Cost\DummyCost          App\Cart\Cost\DummyCost
App\Cart\Cost\FourCost           App\Cart\Cost\FourCost
App\Cart\Cost\FridayCost         App\Cart\Cost\FridayCost
App\Cart\Cost\MinCost            App\Cart\Cost\MinCost
App\Cart\Cost\NewYearCost        App\Cart\Cost\NewYearCost
App\Cart\Cost\SimpleCost         alias for "cart.calculator"
App\Cart\Storage\DBStorage       App\Cart\Storage\DBStorage
App\Cart\Storage\HybridStorage   App\Cart\Storage\HybridStorage
App\Cart\Storage\MemoryStorage   App\Cart\Storage\MemoryStorage
App\Cart\Storage\SessionStorage  alias for "cart.storage.session"
App\Controller\CartController    App\Controller\CartController

但它仍然没有解决这种情况，因为我仍然得到与以前相同的异常。

找不到服务“购物车”：即使它存在于应用程序的容器中，里面的容器

4

0 回答 0