优秀博客

https://www.cnblogs.com/makemylife/

https://www.cnblogs.com/yidengjiagou/p/16545435.html

https://tech.meituan.com/2014/06/30/mysql-index.html

 

Spring 相关

https://www.xxelin.com/2020/04/15/bean-post-processor-practice/

https://www.skypyb.com/2019/08/jishu/979/

https://www.jianshu.com/u/cf295cba8ad2

spring 类加载器& mybatis源码：https://cloud.tencent.com/developer/article/1692115