分布式合集,杂乱
1、redis,什么是分布式锁
https://www.jianshu.com/p/a1ebab8ce78a
2、mysql高效插入数据
https://www.cnblogs.com/dailidong/p/7571074.html
3、时间复杂度和空间复杂度
https://blog.csdn.net/haha223545/article/details/93619874
4、sql优化的几种方式
https://blog.csdn.net/qq_38789941/article/details/83744271
5、springboot入门学习
http://www.ityouknow.com/springboot/2016/01/06/spring-boot-quick-start.html
6、2020面试题精选
https://zhuanlan.zhihu.com/p/64147696
7、java笔试题网站
https://www.nowcoder.com/test/question/done?tid=35272846&qid=3285#summary