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VB.NET實用教程之VB.NET實現(xiàn)登陸Ftp經(jīng)典方案講解
上一章對與VB.NET抓取網(wǎng)頁亂碼的問題的解決方案,今天VB.NET實用教程教你對于VB.NET實現(xiàn)登陸Ftp的方法,快看看學(xué)習(xí)一下吧。我們都知道遠(yuǎn)程視頻傳輸可以采用線程下載、圖片壓縮,還可以考慮先儲存進(jìn)數(shù)據(jù)庫中

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VB.NET實用教程代碼:
- Private sckConnect As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
- Private RemoteIp As IPEndPoint
- Private thd As Thread
- Private blnExt As Boolean = True
- Private _Quality As Int16 = 50
- Public WriteOnly Property Quality() As Int16 ’這個函數(shù)表示服務(wù)器要求的圖片質(zhì)量
- Set(ByVal value As Int16)
- _Quality = value
- End Set
- End Property
- Private Sub run()
- Dim byt() As Byte
- Dim stream As MemoryStream
- Dim bmp As Bitmap
- While blnExt
- Try
- bmp = getGrcToBmp() '這是獲取圖片
- stream = New MemoryStream
- Compress(bmp, stream, _Quality) '這里對圖片進(jìn)行壓縮函數(shù)
- byt = stream.ToArray
- sckConnect.Send(byt, byt.Length, SocketFlags.None)
- byt.Initialize()
- stream = Nothing
- Thread.Sleep(30) '30毫秒,也就是1秒中傳送33次圖片
- Catch ex As Exception
- Call Ext()
- End Try
- End While
- End Sub
- Public Sub Send(ByVal ip As String, ByVal port As Integer) '服務(wù)器的IP和Port
- Try
- RemoteIp = New IPEndPoint(IPAddress.Parse(ip), port)
- sckConnect.SendTimeout = 100
- sckConnect.Connect(RemoteIp)
- If sckConnect.Connected Then
- thd = New Thread(AddressOf run)
- thd.Start()
- End If
- Catch ex As Exception
- MsgBox(ex.Message)
- Exit Sub
- End Try
- End Sub
- Public Sub Ext()
- Try
- blnExt = False
- thd = Nothing
- sckConnect.Disconnect(True)
- sckConnect.Close()
- Catch ex As Exception
- End Try
- End Sub
以上是VB.NET實用教程對VB.Net實現(xiàn)登陸Ftp的方法的一個講述,希望大家在平時的工作中總結(jié)出更好的方法。
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文章標(biāo)題:VB.NET實用教程之VB.NET實現(xiàn)登陸Ftp經(jīng)典方案講解
文章轉(zhuǎn)載:http://www.dlmjj.cn/article/cogchdg.html


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