公平锁，非公平锁
https://blog.csdn.net/java_wxid/article/details/97611532
可重入锁，递归锁
https://blog.csdn.net/java_wxid/article/details/97611665
自旋锁
https://blog.csdn.net/java_wxid/article/details/97612281
读写锁
https://blog.csdn.net/java_wxid/article/details/99165717
悲观锁，乐观锁
https://blog.csdn.net/qq_34337272/article/details/81072874
行锁，表锁，死锁
https://blog.csdn.net/eternal_yangyun/article/details/101037977
分布式锁
https://blog.csdn.net/wuzhiwei549/article/details/80692278
线程同步锁
https://www.cnblogs.com/lyjblogs/p/7888646.html
