ASP编写下载网页中所有资源的程序

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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

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