ASP采集中获取网页内所需的html代码

有时候,需要获取网页的html代码,如新闻采集。采集之前，首页要得到被采集的页面的html代码，然后根据代码，分析出你想要得到的内容，最后将得到的内容保存到自己的数据库中

function.asp

<%
Function getHTTPPage(url)
On Error Resume Next
dim http
set http=Server.createobject("Microsoft.XMLHTTP")
Http.open "GET",url,false
Http.send()
if Http.readystate<>4 then
exit function
end if
getHTTPPage=bytesToBSTR(Http.responseBody,"GB2312")
set http=nothing
If Err.number<>0 then
Response.Write "<p><font color='red'>
<b>服务器获取文件内容出错</b></font></p>"
Err.Clear
End If 
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
%>

index.asp

<!--#include file="function.asp"-->
<%
url=""
response.write getHTTPPage(url)
%>