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高并发下接口幂等性如何保证?
2022-07-01 03:49:00 【dj1540225203】
- 增加数据库表字段,每次更新+1,防止重复更新。
- 每次新增或者更新时,先select判断一下再处理
- 数据库加悲观锁,不建议
- 增加唯一索引,或者组合的唯一索引。
- 新建一个中间防止重复表,先插入该表,再处理到正式表
- 增加redis处理,先缓存起来incr下次推送存在可直接返回不处理。
- 获取token,也就是每次请求都后端生成一个唯一的token给前端请求时header携带,如果存在则不处理。
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