Cache Manager 单例 - 国内版 Bing
https://cn.bing.com/search?FORM=U227DF&PC=U227&q=Cache+Manager+单例
关于我们 - 美团技术团队
https://tech.meituan.com/about
缓存那些事 - 美团技术团队
https://tech.meituan.com/2017/03/17/cache-about.html
Springboot中的缓存Cache和CacheManager原理介绍 - Nice斌 - 博客园
https://www.cnblogs.com/top-housekeeper/p/11865399.html
3.CacheManager(shiro缓存管理)_浪子-CSDN博客
https://blog.csdn.net/wojiaolinaaa/article/details/48177821
Spring Cache一之CacheManager的创建_海恩的博客-CSDN博客
https://blog.csdn.net/jiachunchun/article/details/90235418
Java本地缓存技术选型(Guava Cache、Caffeine、Ehcache) - 简书
https://www.jianshu.com/p/e5dc3a18dcb8
LRU和LFU的区别_格物致知-CSDN博客_lfu lru区别
https://blog.csdn.net/summerhust/article/details/6867171