form1.vb

完整的机房管理系统源码,vb加acce

Imports System.Net
Imports System.Net.Sockets
Imports System.IO
Imports System.Threading
Imports System.String
Public Class Form1
    Inherits System.Windows.Forms.Form
    Dim socket As socket
    Dim logined As Boolean = False
#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents Timer1 As System.Windows.Forms.Timer
    Friend WithEvents TxtIDOrder As System.Windows.Forms.TextBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TxtPassword As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents BtExit As System.Windows.Forms.Button
    Friend WithEvents BtLogin As System.Windows.Forms.Button
    Friend WithEvents NotifyIcon1 As System.Windows.Forms.NotifyIcon
    Friend WithEvents Label1 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
        Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
        Me.TxtIDOrder = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.TxtPassword = New System.Windows.Forms.TextBox
        Me.Label2 = New System.Windows.Forms.Label
        Me.BtExit = New System.Windows.Forms.Button
        Me.BtLogin = New System.Windows.Forms.Button
        Me.NotifyIcon1 = New System.Windows.Forms.NotifyIcon(Me.components)
        Me.Label1 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'Timer1
        '
        Me.Timer1.Enabled = True
        '
        'TxtIDOrder
        '
        Me.TxtIDOrder.Location = New System.Drawing.Point(322, 168)
        Me.TxtIDOrder.Name = "TxtIDOrder"
        Me.TxtIDOrder.Size = New System.Drawing.Size(103, 21)
        Me.TxtIDOrder.TabIndex = 35
        Me.TxtIDOrder.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(206, 168)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(50, 32)
        Me.Label3.TabIndex = 34
        Me.Label3.Text = "编号："
        '
        'TxtPassword
        '
        Me.TxtPassword.Location = New System.Drawing.Point(322, 240)
        Me.TxtPassword.Name = "TxtPassword"
        Me.TxtPassword.PasswordChar = Microsoft.VisualBasic.ChrW(42)
        Me.TxtPassword.Size = New System.Drawing.Size(103, 21)
        Me.TxtPassword.TabIndex = 33
        Me.TxtPassword.Text = ""
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(206, 240)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(50, 24)
        Me.Label2.TabIndex = 32
        Me.Label2.Text = "密码："
        '
        'BtExit
        '
        Me.BtExit.Location = New System.Drawing.Point(350, 320)
        Me.BtExit.Name = "BtExit"
        Me.BtExit.Size = New System.Drawing.Size(68, 32)
        Me.BtExit.TabIndex = 31
        Me.BtExit.Text = "退出"
        '
        'BtLogin
        '
        Me.BtLogin.Location = New System.Drawing.Point(233, 320)
        Me.BtLogin.Name = "BtLogin"
        Me.BtLogin.Size = New System.Drawing.Size(62, 32)
        Me.BtLogin.TabIndex = 30
        Me.BtLogin.Text = "登录"
        '
        'NotifyIcon1
        '
        Me.NotifyIcon1.Icon = CType(resources.GetObject("NotifyIcon1.Icon"), System.Drawing.Icon)
        Me.NotifyIcon1.Text = "NotifyIcon1"
        Me.NotifyIcon1.Visible = True
        '
        'Label1
        '
        Me.Label1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.Label1.ForeColor = System.Drawing.SystemColors.Highlight
        Me.Label1.Location = New System.Drawing.Point(184, 72)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(320, 24)
        Me.Label1.TabIndex = 36
        Me.Label1.Text = "              服务器与客户端通讯测试"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(678, 566)
        Me.ControlBox = False
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.TxtIDOrder)
        Me.Controls.Add(Me.TxtPassword)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.BtExit)
        Me.Controls.Add(Me.BtLogin)
        Me.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(134, Byte))
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
        Me.Name = "Form1"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "用户登录"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Sub establistsocket(ByVal state As Object)
        Dim serveradd As IPAddress = Dns.Resolve("61.174.73.45").AddressList(0)
        Dim enpoint As New IPEndPoint(serveradd, 50)
        Dim temp As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
        temp.Blocking = True '设置Socket对象处于阻塞状态
        temp.Connect(enpoint) '连接服务器
        socket = temp
        socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 5000)
        socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 5000)
        If socket.Connected Then
            Dim info As String
            info = "L" & TxtIDOrder.Text.PadRight(6) & TxtPassword.Text.PadRight(10)
            SendInfo(info) '发送登录信息
        End If
    End Sub


    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim ASCII As System.Text.Encoding = System.Text.Encoding.ASCII
        Dim receivebyte(20) As Byte
        Dim receivePage As String = String.Empty
        If Not socket Is Nothing Then
            If socket.Available <> 0 Then
                socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000)
                Dim bytes As Int32 = socket.Receive(receivebyte, receivebyte.Length, 0) '接收二进制信息
                receivePage = ASCII.GetString(receivebyte, 0, bytes) '转换为字符
                ProcessInfo(receivePage)
            End If
        End If
    End Sub
    Public Sub ProcessInfo(ByVal info As String)
        Dim flag As String
        flag = info.Substring(0, 2)
        Select Case flag
            Case "MM"
                MsgBox(info.Substring(2, Len(info) - 2))
            Case "L0"
                MsgBox("编号或密码输入有误，请重试！", MsgBoxStyle.Exclamation, Me.Text)
            Case "L1"
                MsgBox("恭喜你，登录成功！")
                Me.Hide()
            Case "L2"
                MsgBox("你的剩余机时小于0，登录失败！", MsgBoxStyle.Exclamation, Me.Text)
            Case "E0"
                MsgBox("编号或密码输入有误，请重试！", MsgBoxStyle.Exclamation, Me.Text)
            Case "E1"
                MsgBox("恭喜你，退出成功！")
                Me.Close()
            Case "E2"
                MsgBox("你的剩余机时小于0，请在下次上机前续机时，退出成功！", , Me.Text)
                Me.Close()
        End Select

    End Sub



    Private Sub BtLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtLogin.Click
        If logined = True Then
            Dim info As String
            info = "L" & TxtIDOrder.Text.PadRight(6) & TxtPassword.Text.PadRight(10)
            SendInfo(info)
        Else
            ThreadPool.QueueUserWorkItem(New System.Threading.WaitCallback(AddressOf establistsocket))
        End If
    End Sub
    Function SendInfo(ByVal info As String)
        Dim ASCII As System.Text.Encoding = System.Text.Encoding.ASCII
        Dim byteSend As Byte()
        byteSend = ASCII.GetBytes(info)
        socket.Send(byteSend, byteSend.Length, 1)
    End Function

    Private Sub BtExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtExit.Click
        Dim info As String
        info = "E" & TxtIDOrder.Text.PadRight(6) & TxtPassword.Text.PadRight(10)
        SendInfo(info)
    End Sub



    Private Sub NotifyIcon1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles NotifyIcon1.DoubleClick
        Me.Show()
    End Sub

    Private Sub NotifyIcon1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles NotifyIcon1.MouseDown

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class