Question

我尝试将代码如下的文件从ftp://a.domain.con移至ftp://b.domain.con

 Public Function TransferFile(ByVal originalFile As String, ByVal destinationFile As String, ByVal userName As String, ByVal password As String) As String
        Try
            Dim fStream As New FileStream(destinationFile, FileMode.Create)
            Dim fileRequest As FileWebRequest = DirectCast(FtpWebRequest.Create(New Uri(originalFile)), FileWebRequest)
            fileRequest.Method = WebRequestMethods.Ftp.DownloadFile
            fileRequest.Credentials = New NetworkCredential(userName, password)
            Dim response As WebResponse = fileRequest.GetResponse()
            Dim stream As Stream = response.GetResponseStream()
            Dim buffer As Byte() = New Byte(1023) {}
            Dim size As Long = 0
            Dim totalRead As Integer = stream.Read(buffer, 0, buffer.Length)
            While totalRead > 0
                size += totalRead
                fStream.Write(buffer, 0, totalRead)
                totalRead = stream.Read(buffer, 0, 1024)
            End While
            fStream.Close()
            stream.Close()
            Return "File transfered"
        Catch ex As SecurityException
            Return ex.Message
        Catch ex As Exception
            Return ex.Message
        End Try
    End Function

问题在于第一行

Dim fStream As New FileStream(destinationFile, FileMode.Create)

我收到The given path's format is not supported.错误。

原始文件名为ftp://a.domain.con/102425547_ _14.2.2011_1.zip 目的地一是ftp://b.domain.con/102425547_ _14.2.2011_1.zip

顺便说一下StackTrace ......

   at System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath)
   at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, AccessControlActions control, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
   at System.IO.FileStream..ctor(String path, FileMode mode)

和字符是希腊字符！

Answer 1

您不能将FileStream用于FTP。

相反，您需要创建两个FtpWebRequest（一个用于读取，一个用于写入）。

不支持给定路径的格式

1 个答案: