从零实现一个http服务器

如果GET请求带参数，那么一般是附加在请求的url后面，参数与参数之间使用&分割，例如请求http://www.hootina.org/index_2013.php?param1=value1¶m2=value2¶m3=value3，我们看下这个请求组装的的http协议包格式：

GET /index_2013.php?param1=value1¶m2=value2¶m3=value3 HTTP/1.1\r\n
Host: www.hootina.org\r\n
Connection: keep-alive\r\n
Upgrade-Insecure-Requests: 1\r\n
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36\r\n
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8\r\n
Accept-Encoding: gzip, deflate\r\n
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\r\n
\r\n