C#写WindowsService

1、新建一个Windows Service项目，重命名服务类名

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.ServiceProcess;
using System.Threading;

namespace ServiceTestCS
{
    public partial class ServiceTestCS : ServiceBase
    {
        //安装卸载时，最好用绝对路径哦
        //Installutil NASTestCS
        //Installutil -u NASTestCS

        private const int waitInterval = 200;
        private AutoResetEvent stopEvent = new AutoResetEvent(false);
        private AutoResetEvent pauseContinueEvent = new AutoResetEvent(false);
        private Thread workingThread = null;

        public NASTestCS()
        {
            InitializeComponent();
            this.CanPauseAndContinue = true;
            this.CanShutdown = true;
        }

        protected override void OnStart(string[] args)
        {
            #if DEBUG
            /*
            //等待调试器，但调试Windows服务时，提示没有加载符号
            while (!Debugger.IsAttached)
            {
                Thread.Sleep(waitInterval);
            }
            */
            Debugger.Launch();
            #endif

            workingThread = new Thread(new ThreadStart(MaiLoop));
            workingThread.Start();
        }

        protected override void OnStop()
        {
            stopEvent.Set();
        }

        protected override void OnShutdown()
        {
            stopEvent.Set();
        }

        protected override void OnPause()
        {
            pauseContinueEvent.Set();
        }

        protected override void OnContinue()
        {
            pauseContinueEvent.Set();
        }

        protected void MaiLoop()
        {
            Boolean bEnd = false;
            while (!bEnd)
            {
                //处理你的正常事务
                //但要保证下面的代码，可以定期被调用到
                //......

                //截获停止事件
                if(stopEvent.WaitOne(waitInterval))
                {
                    bEnd = true;
                    break;
                }

                //截获暂停事件
                if (pauseContinueEvent.WaitOne(waitInterval))
                {
                    //等待继续时间
                    while (!pauseContinueEvent.WaitOne(waitInterval))
                    {
                        //少占用一些资源
                        Thread.Sleep(waitInterval);

                        //暂停时也可以退出
                        if (stopEvent.WaitOne(waitInterval))
                        {
                            bEnd = true;
                            break;
                        }
                    }
                }
            }
        }
    }
}

2、服务设计界面右击，添加Service Installer
配置Service Installer，配置服务类名称，显示名称，启动类型，登录用户，服务依赖等
但如果要可以与桌面交互的话，需要添加代码实现。
双击serviceInstaller，添加下面方法：

        using System.Management;

        private void serviceInstaller_AfterInstall(object sender, InstallEventArgs e)
        {
            //要用LocalSystem用户登录才有效哦
            ManagementObject wmiService = new ManagementObject(string.Format("Win32_Service.Name='{0}'", this.serviceInstaller.ServiceName));
            ManagementBaseObject changeMethod = wmiService.GetMethodParameters("Change");
            changeMethod["DesktopInteract"] = true;
            ManagementBaseObject OutParam = wmiService.InvokeMethod("Change", changeMethod, null);
        }

3、安装与反安装，用命令行实现

rem 安装服务
%PATH_TO_INSTALLUTIL%\installutil.exe %PATH_TO_SERVICE%\NASTestCS.exe
rem 卸载服务
%PATH_TO_INSTALLUTIL%\installutil.exe -u %PATH_TO_SERVICE%\NASTestCS.exe