striveb的博客

1.ConcurrentHashMap(线程安全)：ConcurrentHashMap采用了非常精妙的"分段锁"策略，ConcurrentHashMap的主干是个Segment数组。 final Segment<K,V>[] segments;Segment继承了ReentrantLock(参照：https://blog.youkuaiyun.com/striveb/article/...