| 第1次 |
2026-10-08 |
商品四态状态机设计与实现（在售 / 已冻结 / 已下架 / 已恢复在售）；单品单卖约束：发布校验「在售 ≤ 1 件」与库存恒为 0/1 锁定；购买意向实体改造：新增口令码、排队时间与交易结果字段；先到先得队列实现：位次计算、队首交易、自动冻结、其余意向作废 |
https://github.com/kaskk345/pingxixi-online-shoppingplatform/blob/main/backend/src/main/java/com/mall/entity/enums/ProductStatus.java；https://github.com/kaskk345/pingxixi-online-shoppingplatform/blob/main/backend/src/main/java/com/mall/service/ProductService.java；https://github.com/kaskk345/pingxixi-online-shoppingplatform/blob/main/backend/src/main/java/com/mall/entity/PurchaseIntent.java；https://github.com/kaskk345/pingxixi-online-shoppingplatform/blob/main/backend/src/main/java/com/mall/service/IntentService.java |
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