来者有分，关于http数据采集的问题。
大家好，我有个关于http数据采集的问题。
如果我想读懂下面内容的含义，该看那些书或者网站，完全从一个会些C#，asp但是对于http协议一无所知的人来说。
内容：
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POST   /securities/index.action   HTTP/1.1
Accept:   application/x-shockwave-flash,   image/gif,   image/x-xbitmap,   image/jpeg,   image/pjpeg,   application/vnd.ms-excel,   application/vnd.ms-powerpoint,   application/msword,   */*
Referer:   http://data.cnstock.com/securities/index.action
Accept-Language:   zh-cn
Content-Type:   application/x-www-form-urlencoded
Accept-Encoding:   gzip,   deflate
User-Agent:   Mozilla/4.0   (compatible;   MSIE   6.0;   Windows   NT   5.1;   SV1;   .NET   CLR   2.0.50727;   InfoPath.1;   .NET   CLR   1.1.4322)
Host:   data.cnstock.com
Content-Length:   43
Connection:   Keep-Alive
Cache-Control:   no-cache
Cookie:   JSESSIONID=3366DA367F909E6A72866CD53AD6890A;   chwlaz=1178707944701;   chweblog_dir=1178707944717;   chweblog_auto=1178707944732;   chwlazq=1;   http://data.cnstock.com/securities/basicFinance.action#positionchweblog_auto=1%20tmpDatachweblog_dir=1chweblog_auto=1;   tmpDatachweblog_dir=1;   http://data.cnstock.com/securities/index.actionchweblog_auto=1;   http://data.cnstock.com/securities/cashFlow.action#positionchweblog_auto=1%20JSESSIONID=188C0537CF286A3A06838A7883CC8415chweblog_auto=1

exgId=600003&type=stock&Submit=%B2%E9%D1%AF

HTTP/1.1   200   OK
Content-Type:   text/html;charset=GBK
Content-Language:   zh-CN
Transfer-Encoding:   chunked
Date:   Wed,   09   May   2007   10:52:22   GMT
Server:   Apache-Coyote/1.1

GET   /styles/cnstock.css   HTTP/1.1
Accept:   */*
Referer:   http://data.cnstock.com/securities/index.action
Accept-Language:   zh-cn
Accept-Encoding:   gzip,   deflate
If-Modified-Since:   Fri,   26   Jan   2007   08:21:59   GMT
If-None-Match:   W/ "2923-1169799719015 "
User-Agent:   Mozilla/4.0   (compatible;   MSIE   6.0;   Windows   NT   5.1;   SV1;   .NET   CLR   2.0.50727;   InfoPath.1;   .NET   CLR   1.1.4322)
Host:   data.cnstock.com
Connection:   Keep-Alive
Cookie:   JSESSIONID=3366DA367F909E6A72866CD53AD6890A;   chwlaz=1178707944701;   chweblog_dir=1178707944717;   chweblog_auto=1178707944732;   chwlazq=1;   http://data.cnstock.com/securities/basicFinance.action#positionchweblog_auto=1%20tmpDatachweblog_dir=1chweblog_auto=1;   tmpDatachweblog_dir=1;   http://data.cnstock.com/securities/index.actionchweblog_auto=1;   http://data.cnstock.com/securities/cashFlow.action#positionchweblog_auto=1%20JSESSIONID=188C0537CF286A3A06838A7883CC8415chweblog_auto=1

GET   /scripts/public.js   HTTP/1.1
Accept:   */*
Referer:   http://data.cnstock.com/securities/index.action
Accept-Language:   zh-cn
Accept-Encoding:   gzip,   deflate
If-Modified-Since:   Tue,   19   Dec   2006   11:41:06   GMT
If-None-Match:   W/ "1586-1166528466000 "
User-Agent:   Mozilla/4.0   (compatible;   MSIE   6.0;   Windows   NT   5.1;   SV1;   .NET   CLR   2.0.50727;   InfoPath.1;   .NET   CLR   1.1.4322)
Host:   data.cnstock.com
Connection:   Keep-Alive
Cookie: &nbs