用ASP编写下载网页中所有资源的程序

看过一篇关于下载网页中图片的文章，它只能下载以 http 头的图片，我做了些 改进，可以下载网页中的所有连接资源，并按照网页中的目录结构建立本地目 录，存放资源。 download.asp?url=你要下载的网页 download.asp 代码如下： ＜% Server.ScriptTimeout=9999 function SaveToFile(from,tofile) on error resume next dim geturl,objStream,imgs geturl=trim(from) Mybyval=getHTTPstr(geturl) Set objStream = Server.CreateObject("ADODB.Stream") objStream.Type =1 objStream.Open objstream.write Mybyval objstream.SaveToFile tofile,2 objstream.Close() set objstream=nothing if err.number＜＞0 then err.Clear end function function geturlencodel(byval url)'中文文件名转换 Dim i,code geturlencodel="" if trim(Url)="" then exit function for i=1 to len(Url) code=Asc(mid(Url,i,1)) if code＜0 Then code = code + 65536 If code＞255 Then geturlencodel=geturlencodel&"%"&Left(Hex(Code),2)&"%"&Right(Hex(Code ),2) else geturlencodel=geturlencodel&mid(Url,i,1) end if next end function function getHTTPPage(url) on error resume next dim http set http=Server.createobject("Msxml2.XMLHTTP") Http.open "GET",url,false Http.send() if Http.readystate＜＞4 then exit function getHTTPPage=bytes2BSTR(Http.responseBody) set http=nothing if err.number＜＞0 then err.Clear end function Function bytes2BSTR(vIn) dim strReturn dim i,ThisCharCode,NextCharCode strReturn = "" For i = 1 To LenB(vIn) ThisCharCode = AscB(MidB(vIn,i,1)) If ThisCharCode ＜ &H80 Then strReturn = strReturn & Chr(ThisCharCode) Else NextCharCode = AscB(MidB(vIn,i+1,1)) strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode)) i = i + 1 End If Next bytes2BSTR = strReturn End Function function getFileName(byval filename) if instr(filename,"/")＞0 then fileExt_a=split(filename,"/") getFileName=lcase(fileExt_a(ubound(fileExt_a))) if instr(getFileName,"?")＞0 then getFileName=left(getFileName,instr(getFileName,"?")-1) end if else getFileName=filename end if end function function getHTTPstr(url) on error resume next dim http set http=server.createobject("MSXML2.XMLHTTP") Http.open "GET",url,false Http.send() if Http.readystate＜＞4 then exit function getHTTPstr=Http.responseBody set http=nothing if err.number＜＞0 then err.Clear end function Function CreateDIR(ByVal LocalPath) '建立目录的程序，如果有多级目录， 则一级一级的创建 On Error Resume Next LocalPath = Replace(LocalPath, "\", "/") Set FileObject = server.CreateObject("Scripting.FileSystemObject") patharr = Split(LocalPath, "/") path_level = UBound(patharr) For I = 0 To path_level If I = 0 Then pathtmp = patharr(0) & "/" Else pathtmp = pathtmp & patharr(I) & "/" cpath = Left(pathtmp, Len(pathtmp) - 1) If Not FileObject.FolderExists(cpath) Then FileObject.CreateFolder cpath Next Set FileObject = Nothing If Err.Number ＜＞ 0 Then CreateDIR = False Err.Clear Else CreateDIR = True End If End Function function GetfileExt(byval filename) fileExt_a=split(filename,".") GetfileExt=lcase(fileExt_a(ubound(fileExt_a))) end function function getvirtual(str,path,urlhead) if left(str,7)="http://" then url=str elseif left(str,1)="/" then start=instrRev(str,"/") if start=1 then url="/" else url=left(str,start) end if url=urlhead&url elseif left(str,3)="../" then str1=mid(str,inStrRev(str,"../")+2) ar=split(str,"../") lv=ubound(ar)+1 ar=split(path,"/") url="/" for i=1 to (ubound(ar)-lv) url=url&ar(i) next url=url&str1 url=urlhead&url else url=urlhead&str end if getvirtual=url end function '示例代码 dim dlpath virtual="/downweb/" truepath=server.MapPath(virtual) if request("url")＜＞ "" then url=request("url") fn=getFileName(url) urlhead=left(url,(instr(replace(url,"//",""),"/")+1)) urlpath=replace(left(url,instrRev(url,"/")),urlhead,"") strContent = getHTTPPage(url) mystr=strContent Set objRegExp = New Regexp objRegExp.IgnoreCase = True objRegExp.Global = True objRegExp.Pattern = "(src|href)=.[^\＞]+? " Set Matches =objRegExp.Execute(strContent) For Each Match in Matches str=Match.Value str=replace(str,"src=","") str=replace(str,"href=","") str=replace(str,"""","") str=replace(str,"'","") filename=GetfileName(str) getRet=getVirtual(str,urlpath,urlhead) temp=Replace(getRet,"//","**") start=instr(temp,"/") endt=instrRev(temp,"/")-start+1 if start＞0 then repl=virtual&mid(temp,start)&" " 'response.Write repl&"＜br＞" mystr=Replace(mystr,str,repl) dir=mid(temp,start,endt) temp=truepath&Replace(dir,"/","\") CreateDir(temp) 'response.Write getRet&"||"&temp&filename&"＜br＞＜br＞" SaveToFile getRet,temp&filename end if Next set Matches=nothing end if %＞