我们目前使用下面的代码将文件从网络服务器下载到旧 ASP.net 页面中的客户端。
我们已经在 MVC3 中重新编写了应用程序，并希望升级此功能。我看过一些帖子声称您可以通过在 web.config 中编写以下行来从网络共享访问该文件
<authentication mode="Windows"/>
<identity impersonate="true" userName="" password="" />
但是，我们目前正在使用 Forms 身份验证模式来登录该站点。这会干扰登录功能吗？
这是我们的下载代码。
Partial Class DownloadFile2
Inherits System.Web.UI.Page
Private BufferSize As Integer = 32 * 1024
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim path As String = Request.Params("File")
path = "\\speedy\wanfiles\" + path.Substring(3)
Dim file As System.IO.FileInfo = New System.IO.FileInfo(path)
Dim Buffer(BufferSize) As Byte
Dim SizeWritten, fileindex As Integer
Response.Clear()
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name)
Response.AddHeader("Content-Length", file.Length.ToString)
Response.ContentType = "application/octet-type"
Response.Flush()
fileindex = 0
Do
// not sure about this GM.AlasData code below
SizeWritten = GM.AlasData.ReadFileBlock(file.FullName, Buffer, fileindex, BufferSize)
Response.OutputStream.Write(Buffer, 0, SizeWritten)
Response.Flush()
If SizeWritten < BufferSize Then
Exit Do
Else
fileindex = fileindex + SizeWritten
End If
Loop
Response.End()
End Sub
End Class
我发现此代码使用 MVC3 进行下载，但无法访问该文件，因为它被视为本地文件。
public FileResult Download(string FilePath)
{
if (FilePath != null)
{
string path = FilePath;
string contentType;
// files are stored on network server named speedy
path = string.Concat(@"\\speedy\files\", HttpUtility.UrlDecode(path));
System.IO.FileInfo file = new System.IO.FileInfo(path);
Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(file.Extension.ToLower());
if (rk != null && rk.GetValue("Content Type") != null)
{
contentType = rk.GetValue("Content Type").ToString();
}
else
{
contentType = "application/octet-type";
}
//Parameters to file are
//1. The File Path on the File Server
//2. The content type MIME type
//3. The parameter for the file save by the browser
return File(file.FullName, contentType, file.Name);
}
else
{
return null;
}
}
需要做什么来解决这个问题，我们可以在哪里执行这个功能？