权限管理系统
本书浅显易懂地介绍了Java线程和并发，是一本完美的Java并发参考手册。书中从并发性和线程安全性的基本概念动身，介绍了如何使用类库提供的基本并发构建块，关于预防并发风险、结构线程安全的类及验证线程安全的规则，如何将小的线程安全类组合成更大的线程安全类，如何使用线程来提升并发使用程序的吞吐量，如何识别可并行履行的命令，如何提升单线程子系统的响应性，如何保证并发程序履行预期命令，如何提升并发代码的功能和可伸缩性等内容，最终介绍了一些高级主题，如显式锁、原子变量、非堵塞算法以及如何开发自定义的同步工具类。(This book introduces Java threads and concurrency in an easy to understand way. It is a perfect reference manual for Java concurrency. Starting from the basic concepts of concurrency and thread safety, the book introduces how to use the basic concurrency building blocks provided by the class library, the rules for preventing concurrency risks, structuring thread safe classes, and verifying thread safety, how to combine small thread safe classes into larger thread safe classes, how to use threads to improve the throughput of concurrent programs, and how to identify commands that can be performed in parallel, How to improve the responsiveness of the single line program subsystem, how to ensure that the concurrent programs perform the expected commands, how to improve the function and scalability of the concurrent code, and finally introduced some advanced topics, such as explicit locking, atomic variables, non blocking algorithms, and how to develop customized synchronization tool classes.)
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