当前位置：网站首页>聊聊接口幂等与消费幂等的本质
聊聊接口幂等与消费幂等的本质
2022-04-23 06:30:00 【梦江河梦】
接口幂等与如何防止消息重复怎么解决？
幂等：执行多次与执行一次对业务数据的影响一样
本质：数据没有错误
从本质解决问题，执行代码前先加分布式锁，然后判断(判断数据是否能插入，是否能更新，是否能删除)。既然加分布式锁就涉及到锁的key是什么？推荐用业务key，而不是请求的唯一ID或者消息的唯一ID。因为可能两个不同的请求/消息都想操作同一数据，数据就不安全了。
版权声明
本文为[梦江河梦]所创，转载请带上原文链接，感谢
https://blog.csdn.net/weixin_42002747/article/details/123028460
边栏推荐
- Intranet security attack and defense: a practical guide to penetration testing (6): domain controller security
- The problem of exporting excel form with wireframe and internal spacing of form by using web form
- Idea shortcut
- C problem of marking the position of polygons surrounded by multiple rectangles
- 庄懂的TA笔记（零）＜铺垫与学习方法＞
- Read and modify the JSON file under the resource folder
- TA notes of Zhuang understand (VII) < Lambert + Phong + shadow + 3evcolor + Ao >
- C operation registry full introduction
- Houdini terrain and fluid solution (simulated debris flow)
- VBA調用SAP RFC實現數據讀取＆寫入
猜你喜欢
How to present your digital portfolio: suggestions from creative recruiters
Teach-Repeat-Replan: A Complete and Robust System for Aggressive Flight in Complex Environments
《内网安全攻防：渗透测试实战指南》读书笔记（八）：权限维持分析及防御
内网渗透系列：内网隧道之pingtunnel
![MySQL8. 0 installation / uninstallation tutorial [window10 version]](/img/9c/1acf153b410f0d2eb6a23dcdbabb88.png)
MySQL8. 0 installation / uninstallation tutorial [window10 version]
Dropping Pixels for Adversarial Robustness
C problem of marking the position of polygons surrounded by multiple rectangles
Export all SVG files in the specified path into pictures in PNG format (thumbnail or original size)
第五章 投资性房地产
SAP GUI安全性
随机推荐
Index locked data cannot be written to es problem handling
VBA調用SAP RFC實現數據讀取＆寫入
读取修改resource文件夹下的json文件
Chapter VII asset impairment
庄懂的TA笔记（零）＜铺垫与学习方法＞
Unity 获取一个资源被那些资源引用
TA notes of Zhuang understand (VII) < Lambert + Phong + shadow + 3evcolor + Ao >
Intranet penetration series: icmpsh of Intranet tunnel
从零开始完整学习机器学习和深度学习，包括理论和代码实现，主要用到scikit和MXNet，还有一些实践（kaggle上的）
《内网安全攻防：渗透测试实战指南》读书笔记（六）：域控制器安全
Scrapy modifies the time in the statistics at the end of the crawler as the current system time
Unity ugui determines the solution of clicking on the UI and 3D objects
内网渗透系列：内网隧道之icmp_tran
CTF-MISC总结
內網滲透系列：內網隧道之icmpsh
TA notes of Zhuang understand (zero) < bedding and learning methods >
Sto with billing cross company inventory dump return
攻防世界MISC刷题1-50
IT高薪者所具备的人格魅力
linux下mysql数据库备份与恢复（全量+增量）