基于 Redis + Token 实现 API 接口的幂等性校验。
工作原理
创建一个唯一标识 token 并存入 redis,当请求接口时,将此 token 放到 header 或者作为请求参数请求接口,后端接口判断 redis 中是否存在此 token:
- 如果存在,正常处理业务逻辑,并从 redis 中删除此 token,那么如果是重复请求,由于 token 已被删除,则不能通过校验,返回请勿重复操作提示
- 如果不存在,说明参数不合法或者是重复请求,返回提示即可
Spring Boot + Redis + Token implement interface idempotent
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