http://www.ruanyifeng.com/blog/2011/09/restful.html
https://www.jianshu.com/p/949acd840672
https://blog.csdn.net/lhorse003/article/details/64121449
http://www.cnblogs.com/luyucheng/p/6039856.html
http://www.cnblogs.com/luyucheng/p/6048274.html
https://blog.csdn.net/lhorse003/article/details/62215672
https://www.yiichina.com/doc/guide/2.0/rest-rate-limiting
https://www.yiichina.com/tutorial/1643
https://www.yiichina.com/tutorial/1644