http://shiyanjun.cn/archives/915.html

http://www.aboutyun.com/thread-11516-1-1.html                   

https://blog.csdn.net/java_zone/article/details/52096797

 

https://blog.csdn.net/u013063153/article/details/73384770

https://blog.csdn.net/javastart/article/details/48877209

https://yq.aliyun.com/topic/69?utm_content=m_17543