摘要：
http request response头信息介绍http://wenku.baidu.com/view/d9e28c1dfad6195f312ba613.html持久连接、非持久连接区别http://book.51cto.com/art/201108/282330.htmw3.orghttp://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32http协议详解http://www.cnblogs.com/TankXiao/archive/2012/02/13/2342672.html#statelessalivefish 细说 阅读全文
