原理及优点:通过XML中的XMLHTTP组件调用其它网站上的网页,然后批量截取或替换原有的信息使其转化成变量后再一一储存到数据库中。其主要的优点便是无需再手工添加大量的信息了,可以指定对某一个站信息的截取进行批量录入,达到省时省力的目的。与其单纯的ASP小偷程序不同的是:它已经不再依赖其目标网站。
简单事例:
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<%
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'声明取得目标信息的函数,通过XML组件进行实现。
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Function GetURL(url)
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Set Retrieval = CreateObject("Microsoft.XMLHTTP")
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With Retrieval
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.Open "GET", url, False
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.Send
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GetURL = bytes2bstr(.responsebody)
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'对取得信息进行验证,如果信息长度小于100则说明截取失败
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if len(.responsebody)<100 then
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response.write "获取远程文件 <a href="&url&" target=_blank>"&url&"</a> 失败。"
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response.end
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end if
14![](/Images/OutliningIndicators/None.gif)
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End With
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Set Retrieval = Nothing
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End Function
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' 二进制转字符串,否则会出现乱码的!
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function bytes2bstr(vin)
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strreturn = ""
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for i = 1 to lenb(vin)
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thischarcode = ascb(midb(vin,i,1))
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if thischarcode < &h80 then
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strreturn = strreturn & chr(thischarcode)
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else
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nextcharcode = ascb(midb(vin,i+1,1))
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strreturn = strreturn & chr(clng(thischarcode) * &h100 + cint(nextcharcode))
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i = i + 1
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end if
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next
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bytes2bstr = strreturn
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end function
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'声明截取的格式,从Start开始截取,到Last为结束
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Function GetKey(HTML,Start,Last)
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filearray=split(HTML,Start)
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filearray2=split(filearray(1),Last)
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GetKey=filearray2(0)
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End Function
39![](/Images/OutliningIndicators/None.gif)
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Dim Softid,Url,Html,Title
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'获取要取页面的ID
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SoftId=Request("Id")
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Url="http://www3.skycn.com/soft/"&SoftId&".html"
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Html = GetURL(Url)
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'以截取天空软件的软件名为例子
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Title = GetKey(Html,"<font color='#004FC6' size='3'>","</font></b></td></tr>")
53![](/Images/OutliningIndicators/None.gif)
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'打开数据库,准备入库
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dim connstr,conn,rs,sql
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connstr="DBQ="+server.mappath("db1.mdb")+";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};"
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set conn=server.createobject("ADODB.CONNECTION")
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conn.open connstr
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set rs=server.createobject("adodb.recordset")
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sql="select [列名] from [表名] where [列名]='"&Title&"'"
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rs.open sql,conn,3,3
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if rs.eof and rs.bof then
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rs("列名")=Title
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rs.update
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set rs=nothing
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end if
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set rs=nothing
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Response.Write"采集完毕!"
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%>
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