页面加载时经典的 ASP 下载 PDF

Ste*_*CET 0 vbscript asp-classic

我想创建一个页面,该页面可以显示一条消息“您的下载即将开始”,然后几秒钟后打开一个“另存为”对话框,允许访问者下载文件。这在经典 ASP VB 脚本中是可能的吗?我知道如何使页面流成为文件,但它不显示页面的 html。我提供的文件是 20Mb,所以脚本需要处理大文件。

我目前有一个元重定向:

<meta http-equiv="refresh" content="2; url=/downloads/brochures/ACET_Products_and_Services_Directory_2013-14.pdf" />
Run Code Online (Sandbox Code Playgroud)

但这真的不是什么好事。

我在我的服务器上安装了 asppdf,并试了一下:

<%
Set Pdf = Server.CreateObject("Persits.Pdf")
Set Doc = Pdf.OpenDocument("d:/websites/common/downloads/brochures/ACET_Products_and_Services_Directory_2013-14.pdf")
Doc.SaveHttp "attachment;filename=ACET_Products_and_Services_Directory_2013-14.pdf"
%>
Run Code Online (Sandbox Code Playgroud)

这绕过了大文件,但您不能同时传输文件和显示 HTML。

我找到了很多方法将文件流式传输到浏览器,但是在页面显示后我无法这样做。

这是我尝试过的另一种:

<% 
    Response.Buffer = False 
    Server.ScriptTimeout = 30000 

    Response.ContentType = "application/x-unknown" ' arbitrary 
    fn = "ACET_Products_and_Services_Directory_2013-14.pdf" 
    FPath = "d:\websites\common\downloads\brochures\" & fn 
    Response.AddHeader "Content-Disposition", "attachment; filename=" & fn 

    Set adoStream = CreateObject("ADODB.Stream") 
    chunk = 2048 
    adoStream.Open() 
    adoStream.Type = 1 
    adoStream.LoadFromFile(FPath) 

    iSz = adoStream.Size 

    Response.AddHeader "Content-Length", iSz 

    For i = 1 To iSz \ chunk 
        If Not Response.IsClientConnected Then Exit For 
        Response.BinaryWrite adoStream.Read(chunk) 
    Next 

    If iSz Mod chunk > 0 Then 
        If Response.IsClientConnected Then 
            Response.BinaryWrite adoStream.Read(iSz Mod chunk) 
        End If 
    End If 

    adoStream.Close 
    Set adoStream = Nothing 

    Response.End 
%>
Run Code Online (Sandbox Code Playgroud)

有了这个,我得到了一个错误代码:来自 Chrome 的 ERR_INVALID_RESPONSE。

这是我尝试过的几乎有效的方法:

<% 
strFilePath = "d:/web sites/common/downloads/brochures/ACET_Products_and_Services_Directory_2013-14.pdf"

Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
If objFSO.FileExists(strFilePath) Then
Set objFile = objFSO.GetFile(strFilePath)
intFileSize = objFile.Size
Set objFile = Nothing

strFileName = "ACET_Products_and_Services_Directory_2013-14.pdf"
Response.AddHeader "Content-Disposition","attachment; filename=" & strFileName

Response.ContentType = "application/x-msdownload"
Response.AddHeader "Content-Length", intFileSize

Set objStream = Server.CreateObject("ADODB.Stream")
objStream.Open
objStream.Type = 1 'adTypeBinary
objStream.LoadFromFile strFilePath
Do While Not objStream.EOS And Response.IsClientConnected
Response.BinaryWrite objStream.Read(1024)
Response.Flush()
Loop
objStream.Close
Set objStream = Nothing
Else
Response.write "Error finding file."
End if
Set objFSO = Nothing
%>
Run Code Online (Sandbox Code Playgroud)

然后我在我希望它下载的页面上使用了 <% response.redirect("download.asp") %> ,但是一旦我点击页面,我就得到了文件,但没有页面。这是我正在努力解决的部分。

成功!

<script> 
window.location.replace('download.asp'); 
</script>
Run Code Online (Sandbox Code Playgroud)

干杯,

史蒂夫

Ste*_*CET 5

通过更多的试验和错误,我发现创建了一个名为 download.asp 的文件并将此代码放入工作中:

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<% 
strFilePath = "d:/websites/common/downloads/brochures/ACET_Products_and_Services_Directory_2013-14.pdf"

Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
If objFSO.FileExists(strFilePath) Then
Set objFile = objFSO.GetFile(strFilePath)
intFileSize = objFile.Size
Set objFile = Nothing

strFileName = "ACET_Products_and_Services_Directory_2013-14.pdf"
Response.AddHeader "Content-Disposition","attachment; filename=" & strFileName

Response.ContentType = "application/pdf"
Response.AddHeader "Content-Length", intFileSize

Set objStream = Server.CreateObject("ADODB.Stream")
objStream.Open
objStream.Type = 1 'adTypeBinary
objStream.LoadFromFile strFilePath
Do While Not objStream.EOS And Response.IsClientConnected
Response.BinaryWrite objStream.Read(1024)
Response.Flush()
Loop
objStream.Close
Set objStream = Nothing
Else
Response.write "Error finding file."
End if
Set objFSO = Nothing
%>
Run Code Online (Sandbox Code Playgroud)

然后我将此代码放在我想要显示说明的页面上,然后提供自动下载:

<script> 
window.location.replace('download.asp'); 
</script>
Run Code Online (Sandbox Code Playgroud)

我希望其他人觉得这很有用。

史蒂夫