Asp 使用 Microsoft.XMLHTTP 抓取网页内容并过滤需要的

  Asp 使用 Microsoft.XMLHTTP 抓取网页内容(没用乱码),并过滤需要的内容

  示例源码:

  

复制代码 代码如下:

  <%

  Dim xmlUrl,http,strHTML,strBody

  xmlUrl = Request.QueryString("u")

  REM 异步读取XML源

  Set http = server.CreateObject("Microsoft.XMLHTTP")

  http.Open "POST",xmlUrl,false

  http.setrequestheader "User-Agent", "Mozilla/4.0"

  http.setrequestheader "Connection", "Keep-Alive"

  http.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"

  http.Send()

  strHTML = BytesToBstr(http.ResponseBody)

  set http = nothing

  REM 抓取主要内容

  strBody = GetBody(strHTML,"<div id=""Div_newsContentc"" class=""cnt"">","</div>",0,0)

  strBody =Replace(strBody,"(本文首发于","")

  strBody =Replace(strBody,"财富动力网</a>,转载请注明出处。)","")

  strBody =Replace(strBody,"本文首发于,转载请注明出处。)","")

  strBody =Replace(strBody,"财富动力网</a>:http://www.927953.com","")

  strBody =Replace(strBody,"本文首发于","")

  Response.Write RegRemoveHref(strBody)

  REM 获取对应网址响应的HTML

  Function BytesToBstr(body)

  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 = "UTF-8"

  '转换原来默认的UTF-8编码转换成GB2312编码,否则直接用

  'XMLHTTP调用有中文字符的网页得到的将是乱码

  BytesToBstr = objstream.ReadText

  objstream.Close

  set objstream = nothing

  End Function

  REM 使用正则表达式,抓取之内标记的内容

  Function GetBody(ConStr,StartStr,OverStr,IncluL,IncluR)

  If ConStr="$False$" or ConStr="" or IsNull(ConStr)=True Or StartStr="" or IsNull(StartStr)=True Or OverStr="" or IsNull(OverStr)=True Then

  GetBody="$False$"

  Exit Function

  End If

  Dim ConStrTemp

  Dim Start,Over

  ConStrTemp=Lcase(ConStr)

  StartStr=Lcase(StartStr)

  OverStr=Lcase(OverStr)

  Start = InStrB(1, ConStrTemp, StartStr, vbBinaryCompare)

  If Start<=0 then

  GetBody="$False$"

  Exit Function

  Else

  If IncluL=False Then

  Start=Start+LenB(StartStr)

  End If

  End If

  Over=InStrB(Start,ConStrTemp,OverStr,vbBinaryCompare)

  If Over<=0 Or Over<=Start then

  GetBody="$False$"

  Exit Function

  Else

  If IncluR=True Then

  Over=Over+LenB(OverStr)

  End If

  End If

  GetBody=MidB(ConStr,Start,Over-Start)

  End Function

  REM 过滤a超链接

  Function RegRemoveHref(HTMLstr)

  Set ra = New RegExp

  ra.IgnoreCase = True

  ra.Global = True

  ra.Pattern = "<a[^>]+>(.+?)<\/a>"

  RegRemoveHref = Replace(ra.replace(HTMLstr,"$1"),"href=""http://www.927953.com""","")

  END Function

  %>

  效果图如下:

Asp 使用 Microsoft.XMLHTTP 抓取网页内容并过滤需要的