https://blog.csdn.net/chenbetter1996/article/details/80516073?depth_1-utm_source=distribute.pc_relevant_right.none-task&utm_source=distribute.pc_relevant_right.none-task
https://blog.csdn.net/qq_37282656/article/details/85105007
IDEA缓存
原文：https://www.cnblogs.com/newblog/p/12379864.html
