编写context.SaveChanges所在的服务并从控制器调用该服务。

这也会减少耦合。有一个Add实体方法和Context.SaveChanges（）一次

希望这有帮助

谢谢

：）

You write the service where the context.SaveChanges would be present & get that service called from your controller.
This will also reduce coupling. Have the Add entity method and Context.SaveChanges() once
Hope this helps
Thanks
:)