java如何实现线程安全的缓存

Question

众所周知，java中实现缓存最简单的办法就是使用LinkedHashMap。参考: http://aliahhqcheng.iteye.com/admin/blogs/1665024 然而这样的缓存，在多线程下就会出现问题，使得程序发生异常。那么问题来了，如何实现一...

迷茫 · Answer

Some atomic operations of redis can support multi-threading

伊谢尔伦 · Answer

Read-write lock ReentrantReadWriteLock+LinkedHashMap will have thread safety issues, it is best to use ConcurrentHashMap+RWLock