位置于:书籍教程首页>>编程开发>>Asp.net教程>>正文
 .NET 下的remoting使用。(TCP通道)

在.NET下的remoting使用里面,很多的书上都是使用了客户和服务器端都是使用一样共享成员或接口的示例来做说明。而且在实际的使用中有不小的问题。

 [共享代码]share.vbImports System.windows.forms

Public Interface Iconnect   '客户端和服务器端同时共享使用一个接口    Function getName() As StringEnd Interface

Public Class app    Public Shared ReadOnly Property appPath() As String   '提供一些应用程序常用路径将会在服务安装的         Get                                                                            '过程中被使用            Return Application.StartupPath        End Get    End Property    Public Shared ReadOnly Property winPath() As String        Get            Return System.Environment.GetEnvironmentVariable("windir")        End Get    End PropertyEnd Class

[服务器端]   '共俩个文件,第一个是服务文件,第二个是服务调用的功能实现文件service1.vb    '引用了System.Runtime.Remoting.dll文件,这是服务Imports System.ServiceProcessImports System.RuntimeImports System.Runtime.RemotingImports System.Runtime.Remoting.Channels

Public Class Service1    Inherits System.ServiceProcess.ServiceBase

#Region " 组件设计器生成的代码 "

    Public Sub New()        MyBase.New()

        ' 该调用是组件设计器所必需的。        InitializeComponent()

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

    End Sub

    'UserService 重写 dispose 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

    ' 进程的主入口点    <MTAThread()> _    Shared Sub Main()        Dim ServicesToRun() As System.ServiceProcess.ServiceBase

        ' 在同一进程中可以运行不止一个 NT 服务。若要将        ' 另一个服务添加到此进程,请更改下行以        ' 创建另一个服务对象。例如,        '        '   ServicesToRun = New System.ServiceProcess.ServiceBase () {New Service1, New MySecondUserService}        '        ServicesToRun = New System.ServiceProcess.ServiceBase () {New Service1}

        System.ServiceProcess.ServiceBase.Run(ServicesToRun)    End Sub

    '组件设计器所必需的    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是组件设计器所必需的    ' 可以使用组件设计器修改此过程。    ' 不要使用代码编辑器修改它。    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()        '        'Service1        '        Me.ServiceName = "Server"

    End Sub

#End Region

    Protected Overrides Sub OnStart(ByVal args() As String)        ' 在此处添加启动服务的代码。此方法应设置具体的操作        ' 以便服务可以执行它的工作。        Try            Dim ch As New Tcp.TcpChannel(8212) '监听端口是在8212,你可以修改该端口            ChannelServices.RegisterChannel(ch) '注册端口            Remoting.RemotingConfiguration.RegisterWellKnownServiceType(Type.GetType("serviceShare.serviceShare,serviceShare", True, True), "server", WellKnownObjectMode.Singleton)       'Type.GetType中的String是需要引用的服务所在的位置,"serviceShare.serviceShare,serviceShare" 中前面俩个serviceShare是指服务所在的程序集中的要做服务的类。逗号后面的serviceShare是指该程序集位于的文件。后面的第三个参数:True就是表示要搜索该文件时不区分大小写。"server"表示服务的名称。                                                 Catch ex As Exception            EventLog.WriteEntry("日志    " & ex.Message)        End Try

    End Sub

    Protected Overrides Sub OnStop()        ' 在此处添加代码以执行停止服务所需的关闭操作。        Try            Dim ch As New Tcp.TcpChannel(8212)            ChannelServices.UnregisterChannel(ch)        Catch ex As Exception            EventLog.WriteEntry("日志    " & ex.Message)        End Try            End Sub

End ClassserviceShare.vb '该文件为接口的实现文件,可以修改这个文件获得自己需要的服务,可以在这里引用                          '其他DLL中的方法Public Class serviceShare    Inherits MarshalByRefObject    Implements share.Iconnect    Private shared i As Int32 = 0

    Public Function getName() As String Implements share.Iconnect.getName        i = i + 1        Return "from Server " & i    End FunctionEnd Class

[客户端]form1.vb Imports SystemImports System.RuntimeImports System.Runtime.RemotingImports System.Runtime.Remoting.Channels

Public Class Form1    Inherits System.Windows.Forms.Form    Private ch As Tcp.TcpChannel

#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 dispose 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 Label1 As System.Windows.Forms.Label    Friend WithEvents Button1 As System.Windows.Forms.Button    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()        Me.Label1 = New System.Windows.Forms.Label        Me.Button1 = New System.Windows.Forms.Button        Me.SuspendLayout()        '        'Label1        '        Me.Label1.Location = New System.Drawing.Point(80, 50)        Me.Label1.Name = "Label1"        Me.Label1.Size = New System.Drawing.Size(125, 25)        Me.Label1.TabIndex = 0        Me.Label1.Text = "Label1"        '        'Button1        '        Me.Button1.Location = New System.Drawing.Point(105, 195)        Me.Button1.Name = "Button1"        Me.Button1.Size = New System.Drawing.Size(75, 25)        Me.Button1.TabIndex = 1        Me.Button1.Text = "Button1"        '        'Form1        '        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)        Me.ClientSize = New System.Drawing.Size(292, 273)        Me.Controls.Add(Me.Button1)        Me.Controls.Add(Me.Label1)        Me.Name = "Form1"        Me.Text = "Form1"        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click        Dim serverName As String        Dim aa As share.Iconnect        serverName = "tcp://127.0.0.1:8212/server"        aa = CType(Activator.GetObject(Type.GetType("share.Iconnect,share", True, True), serverName), share.Iconnect)                                        '注意这个地方        Label1.Text = aa.getName()    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load        ch = New Tcp.TcpChannel   '客户端可以不注册端口        ChannelServices.RegisterChannel(ch)    End SubEnd Class

[服务安装]Strart.vb   '服务安装Module Strart    Sub Main(ByVal arg() As String)        On Error Resume Next#If DEBUG Then        If IO.File.Exists("setup.bat") Then   '批处理附后面            Shell("setup.bat", , True)        End If#End If        If (IO.File.Exists("testService.exe")) Then            Shell(share.app.winPath & "\Microsoft.NET\Framework\v1.1.4322\InstallUtil.exe " _            & share.app.appPath & "\testService.exe /LogFile", AppWinStyle.Hide, True)            Dim Sc2 As New System.ServiceProcess.ServiceController("server")            If Sc2.Status = ServiceProcess.ServiceControllerStatus.Stopped Then                Sc2.Start()            End If        End If    End SubEnd Module

[服务卸载]UnSetup.vbModule strart    Sub Main()        On Error Resume Next        If (IO.File.Exists("testservice.exe")) Then            Dim Sc1 As New System.ServiceProcess.ServiceController("server")            If Sc1.Status = ServiceProcess.ServiceControllerStatus.Running Then                Sc1.Stop()

            End If            Shell(share.app.winPath & "\Microsoft.NET\Framework\v1.1.4322\InstallUtil.exe /u " _             & share.app.appPath & "\testservice.exe /LogFile", AppWinStyle.Hide, True)        End If    End SubEnd Module

[批处理]copy ..\..\serviceShare\bin\serviceShare.dll .\serviceShare.dllcopy ..\..\test\bin\test.exe .\test.execopy ..\..\shared\bin\share.dll .\share.dllcopy ..\..\UnSetup\bin\UnSetup.exe .\UnSetup.execopy ..\..\testService\bin\testService.exe .\testService.exe

这样能方便的扩展自己的功能,因为很多书上的代码,使用都是抄微软的,如果程序是分开独立制作,只公布接口的话,安微软的做法就很难成功。

示例虽然是在一个程序中实现的,但在俩个程序里面也不会有问题,大家可以自己试。

点击下载所需代码


http://www.xp163.com/共享:
 网站最新更新
 .NET 下的remoting使用。(TCP通道)相关

 

 书籍教程站内推荐信息
 书籍教程网站地图