Option Explicit
'==============================================
'===============================
'udp传文件
'客户端
'作者: 影子
'================================
'==============================================
Dim FileNumber As Integer '用来存文件的句柄
Dim LenFile As Long '文件的长度
Private Sub Command2_Click()
closefile
End Sub
Private Sub Form_Load()
Winsock0.LocalPort = 5698
Winsock0.Listen
beginfile
End Sub
Private Sub Winsock0_ConnectionRequest(ByVal requestID As Long)
If Me.Winsock0.State <> sckClosed Then Me.Winsock0.Close
Me.Winsock0.Accept requestID
End Sub
Private Sub Winsock0_DataArrival(ByVal bytesTotal As Long)
Dim FileByte() As Byte
Winsock0.GetData FileByte, vbArray + vbByte '接收类型为:字节数组
' 写文件
Put #FileNumber, , FileByte,
' 发送继续发送的请求
frmmain.Winsock0.SendData "ok"
End Sub
Public Sub beginfile()
FileNumber = FreeFile '取得未使用的文件号
Open "c:\aaa.exe" For Binary As #FileNumber '打开文件
End Sub
Public Sub closefile() '关闭文件句柄
Close #FileNumber
End Sub
Option Explicit
Dim GetFileNum As Integer
Dim LenFile As Long
Dim Sendbaye() As Byte '发送的包
'===============================
'udp传文件
'作者: 影子
'服务器端
'================================
Private Sub Command1_Click()
GetFileNum = FreeFile '取得未使用的文件号
LenFile = FileLen("d:\aa.rar") '获得需传送的文件的长度
Open "d:\aa.rar" For Binary As #GetFileNum '打开需传送的文件
Command1.Enabled = False
' 传送文件
Call TCPSendFile(frmmain.Winsock0, GetFileNum, SplitFile)
Text1.Text = Now
End Sub
End Sub
'=========================================================================
'为了清晰,下面分别用两个子过程来完成计算这次还可以传多少个字节的数据和传送数据
'==========================================================================
Private Function SplitFile() As Long '拆包
On Error Resume Next
Dim GetCount As Long
'计算出这次可发送的字节数
If LenFile >= 4000 Then
GetCount = 4000
LenFile = LenFile - GetCount
Else
GetCount = LenFile
LenFile = LenFile - GetCount
End If
SplitFile = GetCount
End Function
Private Sub TCPSendFile(objWinSock As Winsock, FileNumber As Integer, SendLen As Long)
Dim FileByte() As Byte
Dim tempa As String * 4
ReDim FileByte(SendLen - 1)
Get #FileNumber, , FileByte '读取文件
frmmain.Winsock0.SendData FileByte
End Sub
Private Sub Winsock0_DataArrival(ByVal bytesTotal As Long)
Dim str As String
frmmain.Winsock0.GetData str
Select Case str
Case "ok"
'成功继续发送
If LenFile = 0 Then '发送完成
MsgBox "成功"
Exit Sub
End If
Call TCPSendFile(frmmain.Winsock0, GetFileNum, SplitFile)
Private Sub Command3_Click()
Dim myFile() As Byte
Dim lngFile As Long
Dim FileName As String
Static i As Single
FileName = VB.App.Path & "\my.gif"
lngFile = FileLen(FileName)
ReDim myFile(lngFile - 1) As Byte
Open FileName For Binary As #1
Get #1, , myFile
Close #1
WskClient.SendData myFile
End Sub
Private Sub WskServer_DataArrival(Index As Integer, ByVal bytestotal As Long)
Static i As Long
Dim myFile() As Byte
Dim myLong As Double
Dim myPath As String
myPath = VB.App.Path & "\my.gif"
ReDim myFile(0 To bytestotal - 1)
WskServer(Index).GetData myFile
Open myPath For Binary As #1
Put #1, lenth + 1, myFile
Close #1
lenth = lenth + UBound(myFile) - LBound(myFile) + 1
End Sub