控制器层负责实现服务的业务逻辑，具体通过调用其他服务、其他控制器或实体管理层实现。

The controller layer is responsible for implementing the business logic of the service, achieved by invoking other services, other controllers, or an entity management layer.

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这是因为应用服务器(即arfm管理的资源层)并没有过载。

This is because the application server, which is the resource tier that ARFM manages, is not overloaded.

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一般情况下，使用一个服务层框架去管理事务、协作，有时也包括业务逻辑和Web框架。

Most times it USES a service layer framework to manage transactions, coordination and sometimes business logic, and a web framework.

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