Java中如何保证线程安全性:
https://blog.csdn.net/weixin_40459875/article/details/80290875
细说Java多线程之内存可见性
https://www.cnblogs.com/rocomp/p/4780532.html
https://www.cnblogs.com/dongguacai/p/6030187.html
https://blog.csdn.net/weixin_40459875/article/details/80290875