http中的request和session的关系。

http中的request和session的关系。
2010年12月09日
　　一个session包括几个request.分析如下
　　GET /ajaxproxy.htm HTTP/1.1
　　Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, */*
　　Referer: http://www.renren.com/
　　Accept-Language: zh-cn
　　Accept-Encoding: gzip, deflate
　　User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; aff-kingsoft-ciba; staticlogin:product=cboxf09&act=login&info=ZmlsZW5 hbWU9UG93ZXJ3b3JkMjAwOU94Zi4yNTI2OS40MDExLmV4ZSZtYW M9Q0YwMDJFQjMzQTZCNDRFRUE1Nzg2RjBBNDVDRUJEOUQmcGFzc 3BvcnQ9JnZlcnNpb249MjAwOS4wNS4yNS4zLjI3MiZjcmFzaHR5 cGU9MQ==&verify=c26a539731dee1d43c13e0f44cbdf296)
　　Host: reg.renren.com
　　Connection: Keep-Alive
　　Cookie: _r01_=1
　　HTTP/1.1 200 OK
　　Server: nginx/0.8.44
　　Date: Thu, 09 Dec 2010 15:29:16 GMT
　　Content-Type: text/html
　　Connection: keep-alive
　　ETag: "4wDltoXKzxt"
　　Last-Modified: Mon, 06 Dec 2010 13:02:30 GMT
　　Accept-Ranges: bytes
　　Content-Length: 550
　　
　　
　　
　　
　　try{document.domain = window.location.hostname.split('.').reverse().slic e(0,2).reverse().join('.');}catch(e){}
　　getTransport = function( )
　　{
　　try
　　{
　　try
　　{
　　return new ActveXObject( 'Msxml2.XMLHTTP' );
　　}
　　catch( e )
　　{
　　return new ActiveXObject( 'Microsoft.XMLHTTP' );
　　}
　　}
　　catch( e )
　　{
　　return new XMLHttpRequest();
　　}
　　};
　　
　　
　　
　　
　　以上是一个request.
　　POST /xn6207.do HTTP/1.1
　　Accept: */*
　　Accept-Language: zh-cn
　　Referer: http://reg.renren.com/ajaxproxy.htm
　　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; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; aff-kingsoft-ciba; staticlogin:product=cboxf09&act=login&info=ZmlsZW5 hbWU9UG93ZXJ3b3JkMjAwOU94Zi4yNTI2OS40MDExLmV4ZSZtYW M9Q0YwMDJFQjMzQTZCNDRFRUE1Nzg2RjBBNDVDRUJEOUQmcGFzc 3BvcnQ9JnZlcnNpb249MjAwOS4wNS4yNS4zLjI3MiZjcmFzaHR5 cGU9MQ==&verify=c26a539731dee1d43c13e0f44cbdf296)
　　Host: reg.renren.com
　　Content-Length: 29
　　Connection: Keep-Alive
　　Cache-Control: no-cache
　　Cookie: _r01_=1; ick=0d09d9d8-0ffa-4aab-ba71-75dd4aad9774
　　ss=10112&rndval=1291908552919
　　HTTP/1.1 200 OK
　　Server: nginx/0.8.44
　　Date: Thu, 09 Dec 2010 15:29:16 GMT
　　Content-Type: text/html;charset=UTF-8
　　Transfer-Encoding: chunked
　　Connection: keep-alive
　　Cache-Control: no-cache
　　Pragma: no-cache
　　Expires: Thu, 01 Jan 1970 00:00:00 GMT
　　Content-Encoding: gzip
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　　0
　　以上又是一个request.
　　所以这里一个session 包含两个request.