Question

我正在开发一个项目，需要通过VB6与Mitsubishi M70 CNC（FTP服务器）进行通信。虽然我最初与它的通信是成功的，但当我尝试上传或下载文件时，会发生以下错误：

Error 120003

200 Type set to I
200 Port command successful
500 Cannot Copy file/Directory. Permission Denied.

我可以手动复制并粘贴文件夹中的文件。但是，当我尝试通过VB执行相同操作时，它显示错误。

MY Project VB exe与我的FTP服务器安装在同一台PC上。

我的代码如下

Option Explicit

Private m_GettingDir As Boolean
Private Sub AddMessage(ByVal msg As String)
    txtResults.Text = txtResults.Text & vbCrLf & msg
    txtResults.SelStart = Len(txtResults.Text)
End Sub



Private Sub cmdUpload_Click()
Dim host_name As String
Dim CMD2 As String

    Enabled = False
    MousePointer = vbHourglass
    txtResults.Text = "Working"
    txtResults.SelStart = Len(txtResults.Text)
    DoEvents

   ' You must set the URL before the user name and
   ' password. Otherwise the control cannot verify
   ' the user name and password and you get the error:
   '
   '       Unable to connect to remote host

   inetFTP.URL = "ftp://Administrator:CNC@NCExplorer:8080/(192,168,1,101)/"
   inetFTP.UserName = "Administrator"
   inetFTP.Password = "CNC"



   ' This is the path where Remote File is to be Copied


    CMD2 =   "ftp://Administrator:CNC@NCExplorer:8080/(192,168,1,101)/CNC%20MEMORY/PRG/USER/NEW_test.txt"

    'Is the syntax  of Remote file  path  Correct? I dont want to copy the   file in Home directory 

    '  Execution 

     inetFTP.Execute , "PUT C:\TEST.TXT CMD2"



  '    m_GettingDir = True
   '    inetFTP.Execute , "Dir"
  End Sub
Private Sub inetFTP_StateChanged(ByVal State As Integer)
    Select Case State
        Case icError
            AddMessage "Error: " & _
                "    " & inetFTP.ResponseCode & vbCrLf & _
               "    " & inetFTP.ResponseInfo
        Case icNone
            AddMessage "None"
        Case icConnecting
            AddMessage "Connecting"
        Case icConnected
            AddMessage "Connected"
        Case icDisconnecting
            AddMessage "Disconnecting"
        Case icDisconnected
            AddMessage "Disconnected"
        Case icRequestSent
            AddMessage "Request Sent"
        Case icRequesting
            AddMessage "Requesting"
        Case icReceivingResponse
            AddMessage "Receiving Response"
        Case icRequestSent
            AddMessage "Request Sent"
        Case icResponseReceived
            AddMessage "Response Received"
        Case icResolvingHost
            AddMessage "Resolving Host"
        Case icHostResolved
            AddMessage "Host Resolved"

        Case icResponseCompleted
            AddMessage inetFTP.ResponseInfo

        If m_GettingDir Then
            Dim txt As String
           Dim chunk As Variant
           m_GettingDir = False

             'Get the first chunk.
           chunk = inetFTP.GetChunk(1024, icString)
           DoEvents
            Do While Len(chunk) < 0
                txt = txt & chunk
                chunk = inetFTP.GetChunk(1024, icString)
                DoEvents
            Loop

         '  AddMessage "----------"
            AddMessage txt
        End If

   Case Else
        AddMessage "State = " & Format$(State)
End Select

Enabled = True
MousePointer = vbDefault
End Sub

Answer 1

您并未给ftp cpommand提供查看最终位置的机会。它将字面意思定位为CMD2

尝试将目标字符串连接到命令

更改此内容：

inetFTP.Execute , "PUT C:\TEST.TXT CMD2"

到此

inetFTP.Execute , "PUT C:\TEST.TXT " & CMD2

VB6中的FTP文件上传错误

1 个答案: