asp-classic – 如何使用经典asp中的vbscript下载文件

发布时间：2020-05-23 21:09:55 所属栏目：asp.Net 来源：互联网

导读：我正在使用VBScript处理Classic Asp.我正在尝试使用下载选项显示目录中的文件列表.喜欢, 当我点击下载链接时,需要下载相应的文件,因为我使用了以下代码, htmlheadtitle My First ASP Page /title/headbody%Dim fsoDim ObjFolderDim ObjOutFileDim ObjFile

我正在使用VBScript处理Classic Asp.我正在尝试使用下载选项显示目录中的文件列表.喜欢,

当我点击下载链接时,需要下载相应的文件,因为我使用了以下代码,

<html>
<head>
<title> My First ASP Page </title>
</head>
<body>
<%
Dim fso
Dim ObjFolder
Dim ObjOutFile
Dim ObjFiles
Dim ObjFile

'Creating File System Object
Set fso = CreateObject("Scripting.FileSystemObject")

'Getting the Folder Object
Set ObjFolder = fso.GetFolder("F:karthik")

'Creating an Output File to write the File Names
Set ObjOutFile = fso.CreateTextFile("F:WindowsFiles.txt")

'Getting the list of Files
Set ObjFiles = ObjFolder.Files

'Writing Name and Path of each File to Output File
Response.Write("<table cellpadding=""4"" cellspacing=""5"" >")
For Each ObjFile In ObjFiles
    Response.Write("<tr><td>"&ObjFile.Name & String(50 - Len(ObjFile.Name)," ")&"</td><td><a href=""#"" language=""VBScript"" onclick=""vbscript:HTTPDownload('"&ObjFile.Path&"','C:UsersstellentDownloads')"">Download</a></td></tr>")
Next
 Response.Write("</table>")
ObjOutFile.Close
%><br>
<script language="vbscript" type="text/vbscript">
Sub HTTPDownload( myURL,myPath )
    ' Standard housekeeping
    Dim i,objFile,objFSO,objHTTP,strFile,strMsg
    Const ForReading = 1,ForWriting = 2,ForAppending = 8

    ' Create a File System Object
    Set objFSO = CreateObject( "Scripting.FileSystemObject" )

    ' Check if the specified target file or folder exists,' and build the fully qualified path of the target file
    If objFSO.FolderExists( myPath ) Then
        strFile = objFSO.BuildPath( myPath,Mid( myURL,InStrRev( myURL,"/" ) + 1 ) )
    ElseIf objFSO.FolderExists( Left( myPath,InStrRev( myPath,"" ) - 1 ) ) Then
        strFile = myPath
    Else
        WScript.Echo "ERROR: Target folder not found."
        Exit Sub
    End If

    ' Create or open the target file
    Set objFile = objFSO.OpenTextFile( strFile,ForWriting,True )

    ' Create an HTTP object
    Set objHTTP = CreateObject( "WinHttp.WinHttpRequest.5.1" )

    ' Download the specified URL
    objHTTP.Open "GET",myURL,False
    objHTTP.Send

    ' Write the downloaded byte stream to the target file
    For i = 1 To LenB( objHTTP.ResponseBody )
        objFile.Write Chr( AscB( MidB( objHTTP.ResponseBody,i,1 ) ) )
    Next

    ' Close the target file
    objFile.Close( )
End Sub
</script>
</body>
</html>

解决方法

您似乎正在尝试使用客户端脚本在服务器端执行此操作.这是一个使用服务器端ASP发送文件的更好的解决方案.您需要将代码分成两页.

您当前的脚本应替换为：

<html> 
<head> 
<title> My First ASP Page </title> 
</head> 
<body> 
<% Dim fso 
Dim ObjFolder 
Dim ObjOutFile 
Dim ObjFiles 
Dim ObjFile 

'Creating File System Object 
Set fso = CreateObject("Scripting.FileSystemObject") 

'Getting the Folder Object 
Set ObjFolder = fso.GetFolder("F:karthik") 

'Getting the list of Files 
Set ObjFiles = ObjFolder.Files 

'Writing Name and Path of each File to Output File 
Response.Write("<table cellpadding=""4"" cellspacing=""5"" >") 
For Each ObjFile In ObjFiles 
    Response.Write("<tr><td>"&ObjFile.Name & String(50 - Len(ObjFile.Name)," ")&"</td><td><a href=""download.asp?file=" & Server.UrlEncode(ObjFile.Name) & """>Download</a></td></tr>") 
Next 
 Response.Write("</table>") 
%><br> 
</body> 
</html>

然后你需要创建另一个我称之为download.asp的脚本来处理下载：

<%
Dim objConn,strFile
Dim intCampaignRecipientID

strFile = Request.QueryString("file")

If strFile <> "" Then

    Response.Buffer = False
    Dim objStream
    Set objStream = Server.CreateObject("ADODB.Stream")
    objStream.Type = 1 'adTypeBinary
    objStream.Open
    objStream.LoadFromFile("F:karthik" & strFile)
    Response.ContentType = "application/x-unknown"
    Response.Addheader "Content-Disposition","attachment; filename=" & strFile
    Response.BinaryWrite objStream.Read
    objStream.Close
    Set objStream = Nothing

End If
%>

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