如何用C#创建Windows Service

 

在.Net中用C#创建Windows Service，其实很简单，按照以下的步骤就可以做出一个简单的Windows Service。

1．首先在创建工程的时候选择Windows Service，这样.Net会自动生成Windows Service的框架；

2．完成Windows Service的相应事件，主要是OnStart和OnStop这两个事件，完成后大致代码如下：

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Diagnostics;

using System.ServiceProcess;

using System.IO;

using System.Threading;

namespace WinSDemo

{

    public class WinSDemo : System.ServiceProcess.ServiceBase

    {

        /// <summary>

        /// Required designer variable.

        /// </summary>

        private System.ComponentModel.Container components = null;

        private bool blnStopThread;

        private Thread thdMain;

 

        public WinSDemo()

        {

            // This call is required by the Windows.Forms Component Designer.

            InitializeComponent();

 

            // TODO: Add any initialization after the InitComponent call

        }

 

        // The main entry point for the process

        static void Main()

        {

            System.ServiceProcess.ServiceBase[] ServicesToRun;

   

            // More than one user Service may run within the same process. To add

            // another service to this process, change the following line to

            // create a second service object. For example,

            //

            ServicesToRun = new System.ServiceProcess.ServiceBase[] { new WinSDemo() };

 

            System.ServiceProcess.ServiceBase.Run(ServicesToRun);

        }

 

        /// <summary>

        /// Required method for Designer support - do not modify

        /// the contents of this method with the code editor.

        /// </summary>

        private void InitializeComponent()

        {

            //

            // WinSDemo

            //

            this.CanPauseAndContinue = true;

            this.ServiceName = "MyTest";

 

        }

 

        /// <summary>

        /// Clean up any resources being used.

        /// </summary>

        protected override void Dispose( bool disposing )

        {

            if( disposing )

            {

                if (components != null)

                {

                    components.Dispose();

                }

            }

            base.Dispose( disposing );

        }

 

        /// <summary>

        /// Set things in motion so your service can do its work.

        /// </summary>

        protected override void OnStart(string[] args)

        {

            // TODO: Add code here to start your service.

 

            thdMain=new Thread(new ThreadStart(WriteLog));

            thdMain.Start();

        }

 

        /// <summary>

        /// Stop this service.

        /// </summary>

        protected override void OnStop()

        {

            // TODO: Add code here to perform any tear-down necessary to stop your service.

            blnStopThread=true;

            thdMain.Join();

        }

 

        protected override void OnPause()

        {

            thdMain.Suspend();

        }

 

        protected override void OnContinue()

        {

            thdMain.Resume();

        }

 

        protected void WriteLog()

        {

            StreamWriter myWriter=null;        

            do

            {

                Process.Start("net","send localhost yourValue");

                try

                {

                    myWriter=new StreamWriter("c://MyLog.txt",true);

                    myWriter.WriteLine(DateTime.Now.ToString());

                    myWriter.Close();

                }

                catch{};

 

                Thread.Sleep(5000);

            }while(blnStopThread==false);

           

        }

    }

}

       注：为了使自己能更好的识别自己写的Windows Service，建议在InitializeComponent修改Service的名称。

 

3．为了使自己写的Service能加载到系统中去，光靠以上步骤是不够；接下来，向当前的工程添加Service Installer，在其中设置Service安装后的起始状态，代码如下：

using System;

using System.Collections;

using System.ComponentModel;

using System.Configuration.Install;

using System.ServiceProcess;

 

 

namespace WinSDemo

{

    /// <summary>

    /// Summary description for WinSDemoIns.

    /// </summary>

    [RunInstaller(true)]

    public class WinSDemoIns : System.Configuration.Install.Installer

    {

        /// <summary>

        /// Required designer variable.

        /// </summary>

        private System.ComponentModel.Container components = null;

        private ServiceInstaller serviceInstaller;

        private ServiceProcessInstaller processInstaller;

 

        public WinSDemoIns()

        {

            // This call is required by the Designer.

            InitializeComponent();

 

            // TODO: Add any initialization after the InitComponent call

            processInstaller = new ServiceProcessInstaller();

            serviceInstaller = new ServiceInstaller();

 

            // Service will run under system account

            processInstaller.Account = ServiceAccount.LocalSystem;

 

            // Service will have Start Type of Manual

            serviceInstaller.StartType = ServiceStartMode.Automatic;

 

            serviceInstaller.ServiceName = "MyTest";

 

            Installers.Add(serviceInstaller);

            Installers.Add(processInstaller);

        }

 

        #region Component Designer generated code

        /// <summary>

        /// Required method for Designer support - do not modify

        /// the contents of this method with the code editor.

        /// </summary>

        private void InitializeComponent()

        {

            components = new System.ComponentModel.Container();

        }

        #endregion

    }

}

 

4．完成以上的步骤，代码的部分就完成了，编译成可执行文件，再用.Net的Service安装工具就行了，即在Dos窗口中，键入“installutil yourService.exe”，这样执行就可以了，相反，如果想卸载Service的话，加一个参数就可以了，即“installutil /u yourService.exe”。注意有可能.Net的路径在环境变量中不存在，可能直接执行是不能成功的，希望先找到“installutil.exe”存在的目录，大致在“/WINDOWS/Microsoft.NET/Framework/v1.1.4322”目录下。

 

至于以后Service的部署，由于.Net写的程序，运行环境必须要安装.Net Framework，所以在其他机器安装自己写的Service时候，一定要先安装.Net运行环境。