asp中利用xmlhttp抓取网页内容的代码

%
On Error Resume Next
Server.ScriptTimeOut=9999999
Function getHTTPPage(Path)
t = GetBody(Path)
getHTTPPage=BytesToBstr(t,"GB2312")
End function
Function GetBody(url)
on error resume next
Set Retrieval = CreateObject("Microsoft.XMLHTTP")
With Retrieval
.Open "Get", url, False, "", ""
.Send
GetBody = .ResponseBody
End With
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
%>
html>
BODY bgColor=#ffffff leftMargin=0 topMargin=0 MARGINHEIGHT=0 MARGINWIDTH=0>
!-- 开始 -->
%
Dim wstr,str,url,start,over,dtime
dtime=Year(Date)"年"Month(Date)"月"Day(Date)"日"
url="https://www.jb51.net/"
wstr=getHTTPPage(url)
start=Newstring(wstr,dtime)
over=Newstring(wstr,"/p>")
body=mid(wstr,start,over-start)
response.write "MARQUEE onmouseover=this.stop(); onmouseout=this.start();>"body"/marquee>"

%>
!-- 结束 -->
/body>/html>