一段解决IFRAME中SESSION无法保留的代码.
Response.AddHeader "P3P”,"CP=CAO PSA OUR”_jetcui_
这个是属于HTML标准内容，所以不管你是用哪种语言开发web site，其宗旨不变。
1. 访问Sina首页的HTTP Head为：注：数据由HTTP Watch获得，其中xxx.xxx.xx.xx为客户机的外网IP地址。(Request-Line) GET / HTTP/1.1Accept */*Accept-Encoding gzip, deflateAccept-Language zh-cnConnection Keep-AliveCookie SINAGLOBAL=xxx.xxx.xx.xx.85531212651426880; vjuids=9a926633.11a6279184e.0.5c66aec4be11d4; vjlast=1217249497; SINA_NEWS_CUSTOMIZE_city=%u5317%u4EAC; Iask2_visitID=125.33.58.43.297711214640695678Host www.sina.com.cnIf-Modified-Since Mon, 28 Jul 2008 12:44:19 GMT; length=390245UA-CPU x86User-Agent Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)Cookie中的SINAGLOBAL比较有意思，应该是第一次访问的IP后跟随机数, vjuids貌似一个UUID2. 点击”股票“频道(Request-Line) GET /stock/ HTTP/1.1Cookie SINAGLOBAL=xxx.xxx.xx.xx.85531212651426880; vjuids=9a926633.11a6279184e.0.5c66aec4be11d4; vjlast=1217424645; SINA_NEWS_CUSTOMIZE_city=%u5317%u4EAC; Iask2_visitID=125.33.58.43.297711214640695678; sinaRotator/=86; Apache=125.33.63.114.293231217424590255; sinaRotator/%3F=61; FINA_V_S_2=sh600635,sh600611,sh600795Host finance.sina.com.cn可见Cookie中的FINA_V_S_2会存储最近访问股票3. 点击“旅游”频道(Request-Line) GET / HTTP/1.1Cookie SINAGLOBAL=159.226.43.61.85531212651426880; vjuids=9a926633.11a6279184e.0.5c66aec4be11d4; vjlast=1217424645; SINA_NEWS_CUSTOMIZE_city=%u5317%u4EAC; Iask2_visitID=125.33.58.43.297711214640695678; sinaRotator/=87; Apache=125.33.63.114.293231217424590255; sinaRotator/%3F=61Host tour.sina.com.cnReferer http://www.sina.com.cn/4. 新浪的网页搜索使用的是google.cnhttp://www.google.cn/search?client=aff-sina&ie=gb&oe=utf8&hl=zh-CN&channel=hpsearch&q=%B0%C2%D4%CB
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Information about the utmLinker and the __utma, __utmb and __utmc cookies
The __utmb and __utmc cookies are used to track a user's session as follows:
__utmb
* Hashcode* Changes to identify each unique session* Non-persistent cookie* Works with __utmc to determine when a session ends* Dies when a browser is closed* If it disappears a new visitor session is started
__utmc
* Session based cookie* Destroyed after 30 minutes of inactivity* Can be set higher* Works with __utmb to determine when session ends* If it disappears, a new visitor session starts* Visitor timeout set in __utm.js. Default is 1800 seconds* 30 minutes is appropriate. Some websites and their visitor traffic may require a different timeout value
When using the utmLinker() function, __utmb and __utmc are assigned a value of 1 by the uDomain() function but only if the _udn variable is set to "none". How can Google Analytics track the beginning and end of a session if both values are set to 1? The beginning and end of a session are calculated and stored in values within the __utma cookie, and not in the __utmb or __utmc cookies.
The __utma cookie is formatted as follows:__utma = domainhash.unique.ftime.ltime.stime.sessioncount;where:domainhash = hash of the domain name of the websiteunique = a randomly generated 31 bit integerftime = UTC timestamp of first visitor sessionltime = UTC timestamp of last visitor sessionstime = UTC timestamp of current visitor sessionsessioncount = number of sessions; always incremented for each new session
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自己去实现http协议
用winsock把下面这段发过去GET /mailregAll/verifyCodeImg.jsp?t=1270958528689 HTTP/1.1Host: reg.email.163.comUser-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8Accept: image/png,image/*;q=0.8,*/*;q=0.5Accept-Language: zh-cn,zh;q=0.5Accept-Encoding: gzip,deflateAccept-Charset: GB2312,utf-8;q=0.7,*;q=0.7Keep-Alive: 300Connection: keep-aliveReferer: http://reg.email.163.com/mailregAll/reg0.jsp?from=163Cookie: __ntes__test__cookies=1270958486953; locOfCh=others; Province=0571; City=09491; vjuids=ddf978e2.127eb0741d0.0.036b5680082ba8; vjlast=1270958474.1270958474.30; _ntes_nnid=8b756d746b620209cb695015c080f4a2,0; _ntes_nuid=8b756d746b620209cb695015c080f4a2; JSESSIONID=bacVf2lsrqPoo5tLXbRFs然后等着收数据，会收到两部分，第一部分是HTTP头，以\r\n\r\n分隔；第二部分就是你的图像数据