·2,447,543篇论文数据，部分数据来源于NoteExpress
For example, data service operations that merely retrieve or update data, without the application of business logic should be permitted to be called directly from the Channel Services layer.
例如，仅仅检索或更新数据的数据服务操作如果没有应用业务逻辑，那么不应该允许直接从Channel services层调用。
youdao
应用推荐
模块上移
模块下移
不移动