我正在尝试将图片上传到 ftp。我可以使用 filezilla 或资源管理器进行连接。但是当我使用 vb.net 代码时出现错误： System.Net.WebException: The remote server returned an error: (500) Syntax error, command unrecognized。请帮忙。我要疯了。我正在使用的代码：
Public Sub upload2ftp(ByVal _FileName As String, ByVal _UploadPath As String, ByVal _FTPUser As String, ByVal _FTPPass As String)
Try
Dim request As System.Net.FtpWebRequest = DirectCast(System.Net.WebRequest.Create(_UploadPath), System.Net.FtpWebRequest)
request.Credentials = New System.Net.NetworkCredential(_FTPUser, _FTPPass)
request.Method = System.Net.WebRequestMethods.Ftp.UploadFile
request.UsePassive = False
request.KeepAlive = False
Dim file() As Byte = System.IO.File.ReadAllBytes(_FileName)
Dim strz As System.IO.Stream = request.GetRequestStream()
strz.Write(file, 0, file.Length)
strz.Close()
strz.Dispose()
Catch ex As Exception
MsgBox(ex.ToString)
End Try