基础 controler 和 service：
- app/controller/mixin
- app/service/mixin
自定义 schema：
- app/schema/article
- app/schema/order
- app/schema/role
- app/schema/user
扩展 service：
- app/service/user
扩展 controller:
- app/controller/mixin
- app/controller/order
- app/controller/user
测试路由：
http://localhost:7001/api/user
http://localhost:7001/api/order