1、介绍

	最常用的利用GET和POST请求后端数据。GET和POST是HTTP与服务器交互的方式，交互方式还有DELETE、PUT、HEAD、OPTIONS、CONNECT等。

先看看GET和POST的样貌：

GET请求

GET /empty_project/inde.jsp HTTP/1.1
  Host: localhost:8088
  Connection: keep-alive
  Upgrade-Insecure-Requests: 1
  User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko)       Chrome/55.0.2883.87 Safari/537.36
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
  Accept-Encoding: gzip, deflate, sdch, br
  Accept-Language: zh-CN,zh;q=0.8
  Cookie: pgv_pvi=4403687424

zheng大约 4 分钟