asp读取远程文件并保存到本地代码

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我是靠谱客的博主鲤鱼荔枝，最近开发中收集的这篇文章主要介绍asp读取远程文件并保存到本地代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

<%
dim act,ifLogin,loginUrl,loginActUrl,loginData,fileUrl,fileName
act=request.QueryString("act")
if(act="do") then
ifLogin=Cint(request.QueryString("ifLogin"))
loginActUrl=request.Form("loginActUrl")
loginData=request.Form("loginData")
fileUrl=request.Form("fileUrl")
fileName=mid(fileUrl,instrrev(fileUrl,"/")+1)
extPos=instrrev(fileName,"?")
if(extPos>0) then
  fileName=left(fileName,extPos-1)
end if
if(ifLogin=1) then
  call PostHttpPage(loginActUrl,loginData)
end if
call DownloadFile(fileUrl,fileName)
else
%>
<form name="form1" method="post" action="?act=do">
  <p>是否登录：
    <input name="ifLogin" type="radio" value="1">
    是
    <input name="ifLogin" type="radio" value="0" checked>
    否  </p>
  <p>登录提交地址：
    <input name="loginActUrl" type="text" size="50">
  </p>
  <p>
    登录数据：<input name="loginData" type="text" size="50">
  </p>
  <p>
    要保存的远程文件URL：
    <input name="fileUrl" type="text" size="50">
  </p>
  <p>
    <input type="submit" name="Submit" value="提交">
    <input type="reset" name="Submit2" value="重写">
  </p>
</form>
<%
end if
Function BytesToBstr(body,code)
        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 =code
        BytesToBstr = objstream.ReadText
        objstream.Close
        set objstream = nothing
End Function
Function PostHttpPage(loginActUrl,PostData)
    Dim xmlHttp
    Dim RetStr
    Set xmlHttp = CreateObject("Microsoft.XMLHTTP")
    xmlHttp.Open "POST", loginActUrl, False
    XmlHTTP.setRequestHeader "Content-Length",Len(PostData)
    xmlHttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"
    xmlHttp.Send PostData
    If Err.Number <> 0 Then
        Set xmlHttp=Nothing
  response.Write("提交登录时出错！提交数据："&PostData)
        Exit Function
    End If
    PostHttpPage=BytesToBstr(xmlHttp.responseBody,"GB2312")
    Set xmlHttp = nothing
End Function
'''''''''''''''''''''''''''''''''''''''''''
function DownloadFile(url,filename)
Set xml = Server.CreateObject("Msxml2.XMLHTTP") '创建对象

   xml.Open "GET",url,False
   xml.Send '发送请求

   if Err.Number>0 then
  Response.Status="404"
  else
  Response.ContentType="application/octet-stream"
  Response.AddHeader "Content-Disposition:","attachment; filename=" & filename
  Range=Mid(Request.ServerVariables("HTTP_RANGE"),7)
  if Range="" then
   Response.BinaryWrite(xml.responseBody)
  else
   S.position=Clng(Split(Range,"-")(0))
   Response.BinaryWrite(xml.responseBody)
  End if
  end if
Response.End
   Set xml = Nothing
end function
'''''''''''''''''''''''''''''''''''''''''''''''''''''
%>