Asp 使用 Microsoft.XMLHTTP 抓取网页内容并过滤需要的
发布时间：2016-12-06 17:18:38 所属栏目：PHP教程 来源：站长网
导读：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: lt;% Dim xmlUrl,http,strHTML,strBody xmlUrl = Request.QueryString("u") REM 异步读取XML源 Set http = server.CreateObject("Microsoft.XMLHTTP")
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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: lt;% 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,"lt;div id=""Div_newsContentc"" class=""cnt""gt;","lt;/divgt;",0,0) strBody =Replace(strBody,"（本文首发于","") strBody =Replace(strBody,"财富动力网lt;/agt;，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lt;/agt;: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 Startlt;=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 Overlt;=0 Or Overlt;=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 = "lt;a[^gt;]+gt;(.+?)lt;/agt;" RegRemoveHref = Replace(ra.replace(HTMLstr,"$1"),"href=""http://www.927953.com""","") END Function %gt; 效果图如下：nbsp;  nbsp; （编辑：源码门户网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
