//天猫学习网站
http://how2j.cn/k/tmall-j2ee/tmall-j2ee-898/898.html
//JPA
http://blog.csdn.net/u010837612/article/category/5732811
//mysqlx
https://github.com/guoxiaoxu/Guo-MySQL-Practice-Questions
E
//萤火虫 VPN
https://github.com/yinghuocho/firefly-proxy
访问的数据不在内存中那么就是缺页