Vb6 TCP Server服务端监听多个RFID读卡器客户端上传的刷卡数据

本示例使用设备介绍：WIFI无线4G网络RFID云读卡器远程网络开关物流网阅读器TTS语音-淘宝网 (taobao.com)
Option Explicit

Const BUSY As Boolean = False    '定义常量
Const FREE As Boolean = True

Dim ConnectState() As Boolean   '定义连接状态
Dim ServerSendbuf() As Byte     '数据发送缓冲

Private Sub Check1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Check1.Value > 0 Then Frame1.Visible = True Else Frame1.Visible = False
End Sub

Private Sub Command1_Click()
initsock
End Sub

Private Sub Command10_Click()
Dim copstr As String
Dim i As Long
Clipboard.Clear
copstr = ""
For i = 0 To List2.ListCount
    copstr = copstr & List2.List(i)
    copstr = copstr & vbCrLf
Next

Clipboard.SetText (copstr)
MsgBox "TCP通讯报文列表已拷贝！", vbInformation + vbOKOnly, "提示"
End Sub

Private Sub Command2_Click()
GetSendData 5
ButtonSend
End Sub

Private Sub Command3_Click()
Dim i As Integer
Dim sockid As Integer
Dim dispinf As String

On Error Resume Next

For i = List1.ListCount - 1 To 0 Step -1   '要用倒序
    If List1.Selected(i) = True Then
        sockid = Val(Mid(List1.List(i), 1, 2))
        Sock(sockid).Close
        
        ConnectState(sockid) = FREE
        
        dispinf = Format(Now, "HH:MM:SS") & " 连接 " & sockid & " 已关闭"
        List2.AddItem (dispinf)
        List2.ListIndex = List2.ListCount - 1
         
        List1.RemoveItem i
    End If
Next
End Sub

Private Sub Command4_Click()
GetSendData 0
ButtonSend
End Sub

Private Sub Command5_Click()
GetSendData 1
ButtonSend

End Sub

Private Sub Command6_Click()
GetSendData 2
ButtonSend
End Sub

Private Sub Command7_Click()
GetSendData 3
ButtonSend
End Sub

Private Sub Command8_Click()
GetSendData 4
ButtonSend
End Sub

Private Sub Command9_Click()
List2.Clear
End Sub

Private Sub Form_Load()
Dim i As Integer

For i = 1 To 255
    Combo9.AddItem (Format(i, "0"))
Next
Combo9.ListIndex = 19
Combo2.ListIndex = 1
Combo3.ListIndex = 0
Combo8.ListIndex = 1

Command1_Click
End Sub

Private Sub Listener_Close()
'MsgBox "close"
Dim dispinf As String
dispinf = Format(Now, "HH:MM:SS") & " 监听服务已关闭！"
List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1
End Sub

Private Sub Listener_ConnectionRequest(ByVal requestID As Long)
Dim SockIndex As Integer
Dim SockNum As Integer
Dim dispinf As String
Dim onlines As String

On Error Resume Next

dispinf = Format(Now, "HH:MM:SS") & " " & requestID & "连接请求"

SockNum = UBound(ConnectState)   '查找连接的用户数
If SockNum > 100 Then
    dispinf = dispinf & SockIndex & " ，当前连接数>100，系统不接受新连接！"
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
    Exit Sub
End If


SockIndex = FindFreeSocket()   '查找空闲的sock

If SockIndex > SockNum Then    '如果已有的sock都忙，而且sock数不超过15个，动态添加sock
    Load Sock(SockIndex)
End If
ConnectState(SockIndex) = BUSY
Sock(SockIndex).LocalPort = 0
Sock(SockIndex).Tag = SockIndex
Sock(SockIndex).Accept (requestID)  '接受请求

onlines = Format(SockIndex, "00") & "|" & Format(requestID, "00000") & "|" & Listener.RemoteHostIP & ":" & Listener.RemotePort
dispinf = dispinf & SockIndex & "接受请求，" & Listener.RemoteHostIP & ":" & Listener.RemotePort

List1.AddItem (onlines)
List1.ListIndex = List1.ListCount - 1
List1.Selected(List1.ListCount - 1) = True

List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1
End Sub

Private Sub Listener_Error(ByVal Number As Integer, Description As String, ByVal Scode As Long, ByVal Source As String, ByVal HelpFile As String, ByVal HelpContext As Long, CancelDisplay As Boolean)
'MsgBox "err"
Dim dispinf As String
dispinf = Format(Now, "HH:MM:SS") & " 监听到异常错误！"
List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1
End Sub

Private Sub Sock_Close(Index As Integer)
Dim dispinf As String
Dim i As Integer

If Sock(Index).State <> sckClosed Then
    Sock(Index).Close
End If
ConnectState(Index) = FREE

dispinf = Format(Now, "HH:MM:SS") & " 连接 " & Index & " 已关闭"
List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1

For i = 0 To List1.ListCount - 1
    If Val(Mid(List1.List(i), 1, 2)) = Index Then
        List1.RemoveItem i
        Exit For
    End If
Next
End Sub

Private Sub Sock_DataArrival(Index As Integer, ByVal bytesTotal As Long)
Dim dx As String
Dim dispinf As String
Dim dispstr As String
Dim i As Integer
Dim TcpData() As Byte
Dim IPort As String
Dim doublecardhao  As Double
Dim card10str As String

Sock(Index).GetData TcpData
IPort = Sock(Index).RemoteHostIP & ":" & Sock(Index).RemotePort

For i = 0 To bytesTotal - 1
   dispstr = dispstr + Right("00" + Hex(TcpData(i)), 2) + " "
Next
dispinf = Format(Now, "HH:MM:SS") & " FromIP " & IPort & " ：" & dispstr
List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1

Select Case TcpData(0)
       Case &HC1, &HCF
            If TcpData(0) = &HC1 Then
                dispstr = "数据解析：接收到IC卡刷卡数据，读卡器IP["
            Else
                dispstr = "数据解析：接收到IC卡离开读卡器，读卡器IP["
            End If
            dispstr = dispstr + Trim(Str(TcpData(1))) + "." + Trim(Str(TcpData(2))) + "." + Trim(Str(TcpData(3))) + "." + Trim(Str(TcpData(4)))
            dispstr = dispstr + "],机号["
            '机号
            dispstr = dispstr + Format(Str$(CLng(TcpData(5)) + CLng(TcpData(6)) * 256), "00000")
            
            dispstr = dispstr + "],数据包序号["
            '数据包序号，每个包都不一样，按递增1变化
            dispstr = dispstr + Format(Str$(CLng(TcpData(7)) + CLng(TcpData(8)) * 256), "00000")
            
            dispstr = dispstr + "],卡号长度[" + Trim(Str(TcpData(9)))
            
            dispstr = dispstr + "],16进制卡号["
            For i = 10 To 9 + TcpData(9)
                dispstr = dispstr + Right("00" + Hex(TcpData(i)), 2)
            Next
            
            doublecardhao = TcpData(13)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(12)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(11)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(10)
            card10str = Right("0000000000" + CStr(doublecardhao), 10)
            dispstr = dispstr + "],转10进制卡号[" + card10str
            
            dispstr = dispstr + "],唯一硬件序号["
            
            For i = 10 + TcpData(9) To bytesTotal - 1
                dispstr = dispstr + Right("00" + Hex(TcpData(i)), 2)
            Next
            dispstr = dispstr + "]"
            
            List2.AddItem (dispstr)
            List2.AddItem ("")
            List2.ListIndex = List2.ListCount - 1

            If Check1.Value > 0 Then Response Index, IPort
            
       Case &HD1, &HDF
            If TcpData(0) = &HD1 Then
                dispstr = "数据解析：接收到ID卡刷卡数据，读卡器IP["
            Else
                dispstr = "数据解析：接收到ID卡离开读卡器，读卡器IP["
            End If
            
            dispstr = dispstr + Trim(Str(TcpData(1))) + "." + Trim(Str(TcpData(2))) + "." + Trim(Str(TcpData(3))) + "." + Trim(Str(TcpData(4)))
            dispstr = dispstr + "],机号["
            '机号
            dispstr = dispstr + Format(Str$(CLng(TcpData(5)) + CLng(TcpData(6)) * 256), "00000")
            
            dispstr = dispstr + "],数据包序号["
            '数据包序号，每个包都不一样，按递增1变化
            dispstr = dispstr + Format(Str$(CLng(TcpData(7)) + CLng(TcpData(8)) * 256), "00000")
            
            doublecardhao = TcpData(12)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(11)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(10)
            doublecardhao = doublecardhao * 256
            doublecardhao = doublecardhao + TcpData(9)
            card10str = Right("0000000000" + CStr(doublecardhao), 10)
                        
            
            dispstr = dispstr + "],16进制卡号["
            dispstr = dispstr + Right("00" + Hex(TcpData(9)), 2) + Right("00" + Hex(TcpData(10)), 2) + Right("00" + Hex(TcpData(11)), 2) + Right("00" + Hex(TcpData(12)), 2) + Right("00" + Hex(TcpData(13)), 2) + "],转10进制卡号[" + card10str
            
            dispstr = dispstr + "],唯一硬件序号["
            
            For i = 14 To bytesTotal - 1
                dispstr = dispstr + Right("00" + Hex(TcpData(i)), 2)
            Next
            dispstr = dispstr + "]"
            
            List2.AddItem (dispstr)
            List2.AddItem ("")
            List2.ListIndex = List2.ListCount - 1

             If Check1.Value > 0 Then Response Index, IPort
      Case &HF3
            dispstr = "数据解析：接收到读卡器心跳包，读卡器IP["
            dispstr = dispstr + Trim(Str(TcpData(1))) + "." + Trim(Str(TcpData(2))) + "." + Trim(Str(TcpData(3))) + "." + Trim(Str(TcpData(4)))
            dispstr = dispstr + "],机号["
            '机号
            dispstr = dispstr + Format(Str$(CLng(TcpData(5)) + CLng(TcpData(6)) * 256), "00000")
            
            dispstr = dispstr + "],数据包序号["
            '数据包序号，每个包都不一样，按递增1变化
            dispstr = dispstr + Format(Str$(CLng(TcpData(7)) + CLng(TcpData(8)) * 256), "00000") + "],"
            
            dispstr = dispstr + "心跳包类型[" + Right("00" + Hex(TcpData(9)), 2) + "],"
                
            dispstr = dispstr + "长度[" + Right("00" + Hex(TcpData(10)), 2) + "],"
            
            dispstr = dispstr + "继电器状态[" + Right("00" + Hex(TcpData(11)), 2) + "],"
            
            dispstr = dispstr + "外部输入状态[" + Right("00" + Hex(TcpData(12)), 2) + "],"
            
            dispstr = dispstr + "随机动态码[" + Right("00" + Hex(TcpData(13)), 2) + Right("00" + Hex(TcpData(14)), 2) + Right("00" + Hex(TcpData(15)), 2) + Right("00" + Hex(TcpData(16)), 2) + "],"
                            

            dispstr = dispstr + "唯一硬件序号["
            For i = 17 To bytesTotal - 1
                dispstr = dispstr + Right("00" + Hex(TcpData(i)), 2)
            Next
            dispstr = dispstr + "]"
                
            
            List2.AddItem (dispstr)
            List2.AddItem ("")
            List2.ListIndex = List2.ListCount - 1
End Select
End Sub

Public Function FindFreeSocket()   '寻找空闲的sock
Dim SockCount, i As Integer
SockCount = UBound(ConnectState)
For i = 0 To SockCount
    If ConnectState(i) = FREE Then
        FindFreeSocket = i
        Exit Function
    End If
Next i

ReDim Preserve ConnectState(0 To SockCount + 1)
FindFreeSocket = UBound(ConnectState)
End Function

Private Sub initsock()
Dim dispinf As String
ReDim Preserve ConnectState(0 To 1)
On Error GoTo err1

ConnectState(0) = FREE
ConnectState(1) = FREE

If Listener.State = sckClosed Then
    Listener.LocalPort = CLng(Text1.Text)    '指定网络端口号
    Listener.Listen                          '开始侦听
    
    dispinf = Format(Now, "HH:MM:SS") & " 已创建监听服务！可以接收客户端的连接请求。"
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
    Command1.Caption = "关闭监听服务"
Else
    Listener.Close
    
    dispinf = Format(Now, "HH:MM:SS") & " 已关闭监听服务！不再接受新的客户端连接请求，已连接的客户端还可以通讯。"
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
    Command1.Caption = "创建监听服务"
End If

Exit Sub

err1:
    dispinf = Format(Now, "HH:MM:SS") & " 开启监听服务时出现错误：" & Err.Number & Err.Description
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
End Sub

Private Sub Sock_Error(Index As Integer, ByVal Number As Integer, Description As String, ByVal Scode As Long, ByVal Source As String, ByVal HelpFile As String, ByVal HelpContext As Long, CancelDisplay As Boolean)
Dim dispinf As String
Dim i As Integer

If Sock(Index).State <> sckClosed Then
    Sock(Index).Close
End If
ConnectState(Index) = FREE

dispinf = Format(Now, "HH:MM:SS") & " 连接 " & Index & " 错误提示：" & Description
List2.AddItem (dispinf)
List2.ListIndex = List2.ListCount - 1

For i = 0 To List1.ListCount - 1
    If Val(Mid(List1.List(i), 1, 2)) = Index Then
        List1.RemoveItem i
        Exit For
    End If
Next
End Sub

Private Sub Text5_Click()
Shell Environ("PROGRAMFILES") & "\Internet Explorer\iexplore.exe  " & Trim(Text5)
End Sub

Private Sub Response(Index As Integer, IPort As String)
On Error GoTo err1

If Check1.Value > 0 Then
    If Option1(0) Then
        GetSendData 0
    ElseIf Option1(1) Then
        GetSendData 1
    ElseIf Option1(2) Then
        GetSendData 2
    Else
        GetSendData 3
    End If
End If

Dim dispinf As String
Dim sendstr As String
Dim i As Integer

On Error GoTo err1

For i = 0 To UBound(ServerSendbuf)
   sendstr = sendstr + Right("00" + Hex(ServerSendbuf(i)), 2) + " "
Next

Sock(Index).SendData ServerSendbuf

dispinf = Format(Now, "HH:MM:SS") & " SendTo " & IPort & " ：" & sendstr
List2.AddItem (dispinf)
List2.AddItem ("")
List2.ListIndex = List2.ListCount - 1

Exit Sub

err1:
    dispinf = Format(Now, "HH:MM:SS") & " 连接 " & Index & " 传送数据时出错：" & Err.Description
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
    List1.RemoveItem i

End Sub

Private Sub ButtonSend()
Dim dataArray() As String
Dim sendstr As String
Dim IPort As String
Dim i As Integer
Dim sockid As Integer
Dim dispinf As String

On Error GoTo err1

For i = 0 To UBound(ServerSendbuf)
   sendstr = sendstr + Right("00" + Hex(ServerSendbuf(i)), 2) + " "
Next

For i = 0 To List1.ListCount - 1
    If List1.Selected(i) = True Then
        sockid = Val(Mid(List1.List(i), 1, 2))
        Sock(sockid).SendData ServerSendbuf
        
        dataArray = Split(List1.List(i), "|")
        IPort = dataArray(2)
        dispinf = Format(Now, "HH:MM:SS") & " SendTo " & IPort & " ：" & sendstr
        List2.AddItem (dispinf)
        List2.AddItem ("")
        List2.ListIndex = List2.ListCount - 1
    End If
Next
Exit Sub

err1:
    dispinf = Format(Now, "HH:MM:SS") & " 连接 " & sockid & " 传送数据时出错：" & Err.Description
    List2.AddItem (dispinf)
    List2.ListIndex = List2.ListCount - 1
    List1.RemoveItem i
    
End Sub

Private Sub GetSendData(responseid As Integer)    '生成服务器发送缓冲数据
Dim i, J As Integer
Dim longi As Long
Dim dispinf As String
Dim strls As String
Dim lensy, displen, sendbyte As Integer
Dim textbyte() As Byte

Select Case responseid
    Case 0                      '生成显示文字发送数据缓冲
        ReDim ServerSendbuf(38)
        ServerSendbuf(0) = &H5A '命令字，表示驱动蜂鸣器声响
        ServerSendbuf(1) = 0
        ServerSendbuf(2) = 0
        
        If Check2.Value = 1 Then
            ServerSendbuf(3) = Combo2.ListIndex '声音类型
            If Option12.Value = True Then
               ServerSendbuf(3) = ServerSendbuf(3) Or 128
            End If
        Else
            ServerSendbuf(3) = &HFF '不发音
            If Option12.Value = True Then
               ServerSendbuf(3) = ServerSendbuf(3) And 127
            End If
        End If
        
        ServerSendbuf(4) = Combo9.ListIndex  '20 '显示保留时间，单位为秒，为255时表示永久显示
                
        strls = Text7.Text + "                                         "
        textbyte = StrConv(strls, vbFromUnicode)      '字符串转换为字节数组
        For i = 0 To 33
            ServerSendbuf(i + 5) = textbyte(i)
        Next
        
    Case 1              '生成显示文字+蜂鸣响声+继电器+TTS语音发送数据缓冲
        strls = "[v"
        If (Combo8.ListIndex <= 16) Then strls = strls & Format(Combo8.ListIndex, "0") & "]" Else strls = strls & "16]"     '在需要发送的语音字符串中任何位置加入[v10],表示将音量调到10级(范围0~16，0表示静音，16最大，每次重开机后，音量重置为10级)！
        
        strls = strls & Trim(Text3.Text)
        textbyte = StrConv(strls, vbFromUnicode)      '字符串转换为字节数组
        lensy = UBound(textbyte) + 1
        
        displen = 34   '双行屏34，四行屏72
        
        sendbyte = 11 + displen + lensy + 4
        
        ReDim ServerSendbuf(sendbyte)
        ServerSendbuf(0) = &H5C    '命令字，表示驱动TTS合成语音\显示及继电器
        ServerSendbuf(1) = 0
        ServerSendbuf(2) = 0
        
        If Check2.Value = 1 Then
            ServerSendbuf(3) = Combo2.ListIndex '声音类型
            If Option12.Value = True Then
               ServerSendbuf(3) = ServerSendbuf(3) Or 128
            End If
        Else
            ServerSendbuf(3) = &HFF '不发音
            If Option12.Value = True Then
               ServerSendbuf(3) = ServerSendbuf(3) And 127
            End If
        End If
        
        Select Case Combo3.ListIndex
               Case 1
                    ServerSendbuf(4) = &HF1
               Case 2
                    ServerSendbuf(4) = &HF2
               Case 3
                    ServerSendbuf(4) = &HF3
               Case 4
                    ServerSendbuf(4) = &HF4
               Case 5
                    ServerSendbuf(4) = &HF5
               Case 6
                    ServerSendbuf(4) = &HF6
               Case 7
                    ServerSendbuf(4) = &HF7
               Case 8
                    ServerSendbuf(4) = &HF8
               Case Else
                    ServerSendbuf(4) = &HF0
        End Select
        '时长
        i = Val(Trim(Text30.Text))
        ServerSendbuf(5) = i Mod 256
        ServerSendbuf(6) = Int(i / 256) Mod 256
        
        ServerSendbuf(7) = Combo9.ListIndex  '20 '显示保留时间，单位为秒，为255时表示永久显示
        
        ServerSendbuf(8) = 0 '在显示屏中的哪个位置开始
        
        ServerSendbuf(9) = displen '显示字符串长度 0-34为全屏
        strls = Text7.Text + "                                         "
        Dim a() As Byte
        a = StrConv(strls, vbFromUnicode)      '字符串转换为字节数组
        For i = 1 To displen                        '显示文字的ASCII码
            ServerSendbuf(i + 10) = a(i - 1)
        Next
        
        ServerSendbuf(10) = lensy                    '语音长度，最长可为126
        For i = 1 To lensy                     'TTS语音的ASCII码
            ServerSendbuf(i + 10 + displen) = textbyte(i - 1)
        Next
        
        ServerSendbuf(10 + ServerSendbuf(9) + lensy + 1) = &H55
        ServerSendbuf(10 + ServerSendbuf(9) + lensy + 2) = &HAA
        ServerSendbuf(10 + ServerSendbuf(9) + lensy + 3) = &H66
        ServerSendbuf(10 + ServerSendbuf(9) + lensy + 4) = &H99
    
    Case 2      '生成蜂鸣响声发送数据缓冲
        ReDim ServerSendbuf(3)
        ServerSendbuf(0) = &H96 '命令字，表示驱动蜂鸣器声响
        ServerSendbuf(1) = 0    'Tcp通讯，机号00表示任意机器
        ServerSendbuf(2) = 0
        ServerSendbuf(3) = Combo2.ListIndex  '声音类型

   Case 3       '生成继电器开关发送数据缓冲
        ReDim ServerSendbuf(5)
        ServerSendbuf(0) = &H78 '命令字，表示驱动蜂鸣器声响
        ServerSendbuf(1) = 0    'Tcp通讯，机号00表示任意机器
        ServerSendbuf(2) = 0
        Select Case Combo3.ListIndex
               Case 1
                    ServerSendbuf(3) = &HF1
               Case 2
                    ServerSendbuf(3) = &HF2
               Case 3
                    ServerSendbuf(3) = &HF3
               Case 4
                    ServerSendbuf(3) = &HF4
               Case 5
                    ServerSendbuf(3) = &HF5
               Case 6
                    ServerSendbuf(3) = &HF6
               Case 7
                    ServerSendbuf(3) = &HF7
               Case 8
                    ServerSendbuf(3) = &HF8
               Case Else
                    ServerSendbuf(3) = &HF0
        End Select
                
        i = Val(Trim(Text30.Text))  '时长
        ServerSendbuf(4) = i Mod 256
        ServerSendbuf(5) = Int(i / 256) Mod 256

   Case 4       '生成继电器开关发送数据缓冲
        ReDim ServerSendbuf(5)
        ServerSendbuf(0) = &H78 '命令字，表示驱动蜂鸣器声响
        ServerSendbuf(1) = 0    'Tcp通讯，机号00表示任意机器
        ServerSendbuf(2) = 0
        Select Case Combo3.ListIndex
               Case 1
                    ServerSendbuf(3) = &HE1
               Case 2
                    ServerSendbuf(3) = &HE2
               Case 3
                    ServerSendbuf(3) = &HE3
               Case 4
                    ServerSendbuf(3) = &HE4
               Case 5
                    ServerSendbuf(3) = &HE5
               Case 6
                    ServerSendbuf(3) = &HE6
               Case 7
                    ServerSendbuf(3) = &HE7
               Case 8
                    ServerSendbuf(3) = &HE8
               Case Else
                    ServerSendbuf(3) = &HE0
        End Select
                
        i = Val(Trim(Text30.Text))  '时长
        ServerSendbuf(4) = i Mod 256
        ServerSendbuf(5) = Int(i / 256) Mod 256
        
    Case 5      '生成重发刷卡数据发送数据缓冲
        ReDim ServerSendbuf(2)
        ServerSendbuf(0) = &HA7  '命令字：重新获取刷卡信息
        ServerSendbuf(1) = 0    'Tcp通讯，机号00表示任意机器
        ServerSendbuf(2) = 0
        
End Select

End Sub
Vb6 TCP Server服务端监听多个RFID读卡器客户端上传的刷卡数据

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