参考网站

1.cash用法

参考http://blog.sina.com.cn/s/blog_4c538f6c01012mzt.html

 

2.NIO实现聊天服务器

https://www.cnblogs.com/hust_wsh/p/5162412.html

 

3.ActiveMq

 

入门   https://www.cnblogs.com/jaycekon/p/6225058.html

详细   https://www.jianshu.com/p/ecdc6eab554c

          https://www.jianshu.com/p/f7a7105b3c27

          https://www.jianshu.com/p/79f8a0457069

 

 

 

4.集合遍历增删元素报错原理ConcurrentModificationException

 

 

参考https://www.cnblogs.com/dolphin0520/p/3933551.html

 

 

5.sleep和wait的区别

http://www.cnblogs.com/hongten/p/hongten_java_sleep_wait.html

 

6 kafka

https://blog.youkuaiyun.com/lblblblblzdx/article/details/80548157

https://blog.youkuaiyun.com/lblblblblzdx/article/details/80548294

https://www.jianshu.com/p/ac03f126980e