xmlhttp 抓取网页内容1

<%
On Error Resume Next
Server.ScriptTimeOut=9999999
Function getHTTPPage(Path)
        t = GetBody(Path)
        getHTTPPage=BytesToBstr(t,"GB2312")
End function

Function bytes2BSTR(vIn)
strReturn = ""
For j = 1 To LenB(vIn)
ThisCharCode = AscB(MidB(vIn,j,1))
If ThisCharCode < &H80 Then
strReturn = strReturn & Chr(ThisCharCode)
Else
NextCharCode = AscB(MidB(vIn,j+1,1))
strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
j = j + 1
End If
Next
bytes2BSTR = strReturn
End Function

Function GetBody(url)
        on error resume next
        Set Retrieval = CreateObject("Microsoft.XMLHTTP")
        
       Retrieval.Open "Get", url, False, "", ""
       Retrieval.Send
       GetBody =Retrieval.responsebody
       
        Set Retrieval = Nothing
End Function

Function BytesToBstr(body,Cset)
        dim objstream
        set objstream = Server.CreateObject("adodb.stream")
        objstream.Type = 1
        objstream.Mode =3
        objstream.Open
        objstream.Write body
        objstream.Position = 0
        objstream.Type = 2
        objstream.Charset = Cset
        BytesToBstr = objstream.ReadText
        objstream.Close
        set objstream = nothing
End Function
Function Newstring(wstr,strng)
        Newstring=Instr(lcase(wstr),lcase(strng))
        if Newstring<=0 then Newstring=Len(wstr)
End Function

%>

<%
Dim wstr,str,url,start,over,city
city = Request.QueryString("id")
url="http://cn.finance.yahoo.com/q?s=USDKRW=X&d=c"
        wstr=getHTTPPage(url)
        start=Newstring(wstr,"最後交易")
        over=Newstring(wstr,"买方出价")
 body=mid(wstr,start,over-start)

start2=Instr(body,"<b>")+3
over2=Instr(body,"</b>")
body2=mid(body,start2,over2-start2)

response.write body2
%>

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