如何用vb开发一个发送http包的软件
在研究如何通过软件完成对网页数据的操作
下面是我抓得数据包
我的目的是用vb做一个可以登录网站的功能
界面我都会做，我想知道如何把用户名，密码发送到目标网站
POST /user.asp?Action=chklogin HTTP/1.1Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*Referer: http://localhost/user.aspAccept-Language: zh-cnContent-Type: application/x-www-form-urlencodedAccept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)Host: localhostContent-Length: 73Connection: Keep-AliveCache-Control: no-cacheCookie: AJSTAT_ok_times=3; VFGNLVCWIGESOGSOGQOG=RVFBSTEJMIBASYKZGOZWTHEGYCCJAZOEABGVDICO; AJSTAT_ok_pages=5username=admin&pwd=123456&zd_code=3697&baoliu=&comurl=&login=%B5%C7%C2%BCHTTP/1.1 200 OKServer: NetBox Version 2.8 Build 4128Date: Sun, 11 Apr 2010 13:35:01 GMTConnection: Keep-AliveCache-control: privateContent-Type: text/htmlContent-Length: 1452<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gbk" /><title>会员中心-追梦阳光贴吧官方网站</title><meta name="Copyright" content="追梦阳光动力" /><meta name="keywords" content="追梦阳光贴吧 专业程序开发制作" /><meta name="description" content="追梦阳光贴吧2.0是一款短小精悍的ASP信息资讯发布展示系统，他集成了留言本的便捷，CMS的实用，论坛的交互性于一体。" /><link href="skins/200/style.css" rel="stylesheet" type="text/css" /><script type="text/javascript" src="images/jquery-1.3.2.min.js"></script><script type="text/javascript" src="images/js.js"></script></head><body><div id="header"> <div class="wrap s_clear"> <h2><a href="index.asp"><img src="skins/200/logo.png" border="0" /></a></h2> <div id="umenu"><A href='user.asp'>登录</A> | <A href='user.asp?Action=reg'>注册</A> | <a href='user.asp?Action=restorePwd' title='按此找回密码'>忘记密码?</a></div> <div id="ad_headerbanner">TieBa_AD_Top<!-- 广告位置 --></div> <div id="menu"> <ul></ul> </div> </div></div><div id="nav"><span><ul></ul></span><div id="navpr"><a href="index.asp">追梦阳光贴吧官方网站</a> » 会员中心</div></div><div id="wrapper" class="wrap s_clear"><script>alert('用户名 或者 密码错误!');window.location.replace('user.asp');</Script>GET /user.asp HTTP/1.1Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*Accept-Language: zh-cnAccept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)Host: localhostConnection: Keep-AliveCookie: AJSTAT_ok_times=3; VFGNLVCWIGESOGSOGQOG=RVFBSTEJMIBASYKZGOZWTHEGYCCJAZOEABGVDICO; AJSTAT_ok_pages=5HTTP/1.1 200 OKServer: NetBox Version 2.8 Build 4128Date: Sun, 11 Apr 2010 13:35:05 GMTConnection: Keep-AliveCache-control: privateContent-Type: text/htmlContent-Length: 4762<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gbk" /><title>会员中心-追梦阳光贴吧官方网站</title><meta name="Copyright" content="追梦阳光动力" /><meta name="keywords" content="追梦阳光贴吧 专业程序开发制作" /><meta name="description" content="追梦阳光贴吧2.0是一款短小精悍的ASP信息资讯发布展示系统，他集成了留言本的便捷，CMS的实用，论坛的交互性于一体。" /><link href="skins/200/style.css" rel="stylesheet" type="text/css" /><script type="text/javascript" src="images/jquery-1.3.2.min.js"></script><script type="text/javascript" src="images/js.js"></script></head><body><div id="header"> <div class="wrap s_clear"> <h2><a href="index.asp"><img src="skins/200/logo.png" border="0" /></a></h2> <div id="umenu"><A href='user.asp'>登录</A> | <A href='user.asp?Action=reg'>注册</A> | <a href='user.asp?Action=restorePwd' title='按此找回密码'>忘记密码?</a></div> <div id="ad_headerbanner">TieBa_AD_Top<!-- 广告位置 --></div> <div id="menu"> <ul></ul> </div> </div></div><div id="nav"><span><ul></ul></span><div id="navpr"><a href="index.asp">追梦阳光贴吧官方网站</a> » 会员中心</div></div><div id="wrapper" class="wrap s_clear"><form name="save" method="post" action="user.asp?Action=chklogin" onSubmit="return regcheck(this);"><br><br><table width="600" align="center" cellSpacing=1 cellPadding=0 class="zd_table" border=0> <tr class="zd_td"> <td height="30" align="center" colspan=2><strong>用户登录</strong></td> </tr><tr class="zd_td"> <td width="30%" height="30" align="right"><strong>帐 号：</strong></td> <td> <input name="username" type="text" id="username" size="20" maxlength="20"> <span id="formct_username"></span></td> </tr> <tr class="zd_td"> <td height="30" align="right"><strong>密 码：</strong></td> <td> <input name="pwd" type="password" id="pwd" size="20" maxlength="20"> <span id="formct_pwd"></span></td> </tr> <tr class="zd_td"> <td height="30" align="right"><strong>验证码：</strong></td> <td> <input name="zd_code" type="text" id="zd_code" size="4" maxlength="4" onKeyPress="if ((event.keyCode<48 &&event.keyCode!=13) || event.keyCode>57) event.returnValue=false" onFocus="document.all.checkcode.src='inc/GetCode.asp?a=login&s='+Math.random()"/><img id='checkcode' src="images/circle.gif" alt= "验证码,看不清楚?请点击刷新验证码" style="cursor : pointer;" onclick="src='inc/GetCode.asp?a=login&s='+Math.random()"/> <span id="formct_zdcode"></span> </td> </tr> <tr class="zd_td"> <td height="30" align="right"><strong>保留登录：</strong></td> <td> <input type='radio' name='baoliu' value='' checked>否 <input type='radio' name='baoliu' value='365'>是</td> </tr><tr class="zd_td"> <td height="30" align="right"> </td> <td><input name="submit3" type=button value='注册' onClick="window.location='user.asp?Action=reg'"> <input name="comurl" type="hidden" id="comurl" value=""> <input type=submit name=login id=login value=登录> </tr></table> <br><br></form><script language="JavaScript1.2">function regcheck(formct){ if (formct.username.value=='' ){ formct.username.focus(); document.getElementById("formct_username").innerHTML="<font color=red>帐号不能为空,请填写</font>"; return false; } if (formct.pwd.value=='' ){ formct.pwd.focus(); document.getElementById("formct_pwd").innerHTML="<font color=red>密码不能为空,请填写</font>"; return false; } if (formct.zd_code.value=='' ){ formct.zd_code.focus(); document.getElementById("formct_zdcode").innerHTML="<font color=red>验证码不能为空,请填写</font>"; return false; } formct.save.disabled=true;}</script></div><div id="footer"> <div id="bottom" class="s_clear"> <div id="footlink"> <div> <strong><a href="http://tieba.dreamsun.cn/" target="_blank">追梦阳光贴吧官方网站</a></strong> ( <a href="http://www.miibeian.gov.cn/" target="_blank">陕ICP备05008626号</a>)</div> <div class="smalltext"> GMT+8, 2010-4-11 下午 09:35:05, <span id="debuginfo">页面执行<a href="so.asp?Action=c" title="清空缓存">0.000</a>毫秒/0</span><script language="javascript" type="text/javascript" src="http://js.users.51.la/3492964.js"></script></div> </div> <div id="rightinfo"><div>技术支持：<a href="http://www.dreamsun.cn" target="_blank" title=2010-3-6>DDP TieBa</a> <em>2.0.0</em></div><div>© 2001-2010</div></div> </div></div><script>get_msg();</script></body></html>GET /ajax.asp?a=get_msg_num&b=0.6003057804858034 HTTP/1.1x-requested-with: XMLHttpRequestAccept-Language: zh-cnReferer: http://localhost/user.aspAccept: text/html, */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)Host: localhostConnection: Keep-AliveCookie: AJSTAT_ok_times=3; VFGNLVCWIGESOGSOGQOG=RVFBSTEJMIBASYKZGOZWTHEGYCCJAZOEABGVDICO; AJSTAT_ok_pages=6HTTP/1.1 200 OKServer: NetBox Version 2.8 Build 4128Date: Sun, 11 Apr 2010 13:35:05 GMTConnection: Keep-AliveCache-control: privateContent-Type: text/html;charset=gb2312Content-Length: 0GET /go.asp?svid=4&id=3492964&tpages=6&ttimes=3&tzone=8&tcolor=32&sSize=1024,768&referrer=&vpage=http%3A//localhost/user.asp HTTP/1.1Accept: */*Referer: http://localhost/user.aspAccept-Language: zh-cnAccept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)Host: web1.51.la:82Connection: Keep-AliveHTTP/1.1 200 OKDate: Sun, 11 Apr 2010 13:35:06 GMTServer: Microsoft-IIS/6.0Content-Length: 0Content-Type: text/htmlExpires: Sat, 10 Apr 2010 20:55:06 GMTCache-control: private