To everyone who has an idea for a good book but doesn't know how to craft it, this is for you... For everyone else who may be impacted by this work, or whose sensibilities I have offended. I am so ...

. ├── online-shop-backend/ # Spring Boot 后端服务 │ ├── src/main/java/com/example/shop │ │ ├── common/ # 通用响应、订单状态 ...