https://axerzone.cn/tags/%E9%94%81/Recent content in 锁 on Weiming's BlogHugo -- gohugo.iozh-cn© 2026 WeimingWed, 10 Apr 2024 00:00:00 +0000https://axerzone.cn/posts/redis-distributed-lock/Wed, 10 Apr 2024 00:00:00 +0000https://axerzone.cn/posts/redis-distributed-lock/<h1 class="relative group">Redis 分布式锁踩坑记 <div id="redis-分布式锁踩坑记" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#redis-%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e8%b8%a9%e5%9d%91%e8%ae%b0" aria-label="锚点">#</a> </span> </h1> <p>分布式锁这个东西，面试必问，实际开发也经常用。我做课程项目的时候在这上面栽了好几个跟头，今天把踩过的坑总结一下。</p> <h2 class="relative group">最简单的实现：SETNX <div id="最简单的实现setnx" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e6%9c%80%e7%ae%80%e5%8d%95%e7%9a%84%e5%ae%9e%e7%8e%b0setnx" aria-label="锚点">#</a> </span> </h2> <p>分布式锁的核心思路很简单：大家抢同一个 key，谁抢到谁执行。</p>