Java NIO

java中NIO的使用和例子

https://www.jianshu.com/p/a9d030fec081

关于Java NIO的一切

http://xintq.net/2017/06/12/everything-about-java-nio

linux io

intbuffer

https://blog.csdn.net/u010412719/article/details/52775637

fileChanel 读写文件

https://segmentfault.com/a/1190000006824107

https://www.cnblogs.com/mjorcen/p/3992371.html  buffer limit postion capacity 含义

https://www.cnblogs.com/dongguacai/p/5812831.html  java nio buffer解读

socketchannel write实现原理

https://juejin.im/post/5cb482a7f265da036c577d0d

深入研究Netty框架之ByteBuf功能原理及源码分析

https://my.oschina.net/7001/blog/742236

netty 零拷贝

https://segmentfault.com/a/1190000007560884