现在网上的采集程序很多，但是有时候你发现一个好的网站，想自己做个采集工具采集一些信息，就需要自己去写程序了，其实这样的采集程序并不难写，主要是去分析源网站的网页结构。
首先去下载个XMLHTTP的类文件：
<%
Class xhttp
private cset,sUrl,sError
Private Sub Class_Initialize()
'cset="UTF-8"
cset="GB2312"
sError=""
end sub
Private Sub Class_Terminate()
End Sub
Public Property LET URL(theurl)
sUrl=theurl
end property
public property GET BasePath()
BasePath=mid(sUrl,1,InStrRev(sUrl,"/")-1)
end property
public property GET FileName()
FileName=mid(sUrl,InStrRev(sUrl,"/")+1)
end property
public property GET Html()
Html=BytesToBstr(getBody(sUrl))
end property
public property GET xhttpError()
xhttpError=sError
end property
private Function BytesToBstr(body)
on error resume next
'Cset:GB2312 UTF-8
dim objstream
set objstream = Server.CreateObject("adodb.stream")
with objstream
.Type = 1 '
.Mode = 3 '
.Open
.Write body '
.Position = 0 '
.Type = 2 '
.Charset = Cset '
BytesToBstr = .ReadText '
.Close
end with
set objstream = nothing
End Function
private function getBody(surl)
on error resume next
dim xmlHttp
'Set xmlHttp=server.createobject("Msxml2.XMLHTTP.4.0")
'set xmlHttp=server.createobject("Microsoft.XMLHTTP")
set xmlHttp=server.createobject("MSXML2.ServerXMLHTTP")
xmlHttp.setTimeouts 10000,10000,10000,30000
xmlHttp.open "GET",surl,false
xmlHttp.send
if xmlHttp.readystate=4 then
'if xmlHttp.status=200 then
getBody=xmlhttp.responsebody
'end if
else
getBody=""
end if
if Err.Number<>0 then
sError=Err.Number
Err.clear
else
sError=""
end if
set xmlHttp=nothing
end function
Public function saveimage(tofile,isoverwrite)
on error resume next
dim objStream,objFSO,imgs
if Not isoverwrite Then
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
If objFSO.FileExists(Server.MapPath(tofile)) Then
Exit Function
End If
Set objFSO = Nothing
End IF
imgs=getBody(sUrl)
Set objStream = Server.CreateObject("ADODB.Stream")
with objStream
.Type =1
.Open
.write imgs
.SaveToFile server.mappath(tofile),2
.Close()
end with
set objstream=nothing
end function
end class
%>
用了这个类文件，做起事情来就方便多了。