C#创建一个Window服务

Posted 2020-11-09 坚持不懈,才能出彩

Window服务介绍

Microsoft Windows 服务能够创建在它们自己的 Windows 会话中可长时间运行的可执行应用程序。这些服务可以在计算机启动时自动启动，可以暂停和重新启动而且不显示任何用户界面。这使服务非常适合在服务器上使用，或任何时候，为了不影响在同一台计算机上工作的其他用户，需要长时间运行功能时使用。还可以在不同于登录用户的特定用户帐户或默认计算机帐户的安全上下文中运行服务。本文就向大家介绍如何运用Visual C#来一步一步创建一个文件监视的Windows服务程序，然后介绍如何安装、测试和调试该Windows服务程序。

 

1.创建window服务

 

创建完成后发现此应用程序的入口

 static void Main()
        {
            ServiceBase[] ServicesToRun;
            ServicesToRun = new ServiceBase[] 
            { 
                new callmeyhzService() 
            };
            ServiceBase.Run(ServicesToRun);
        }

修改服务名称

编写服务代码

  public partial class callmeyhzService : ServiceBase
    {
        public callmeyhzService()
        {
            InitializeComponent();
        }
        string filePath = @"D:\\MyServiceLog.txt";
        protected override void OnStart(string[] args)
        {
            using (FileStream stream = new FileStream(filePath,FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine(DateTime.Now.ToString("yyyyMMdd HH:mm:ss" + "服务启动！"));
            }

        }

        protected override void OnStop()
        {

             using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine(DateTime.Now.ToString("yyyyMMdd HH:mm:ss" + "服务停止！"));
            }
        }
    }

此时如果直接执行服务是无法安装的

 

2.写一个桌面应用程序管理服务

最终我们希望window服务应该在service.msc中存在

编写一个winform就放4个按钮

 

上代码

using System;
using System.Collections;
using System.Windows.Forms;
using System.ServiceProcess;
using System.Configuration.Install;

namespace WindowServiceClient
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        string serviceFilePath = Application.StartupPath + @"\\CallmeYhz.exe";
        string serviceName = "花生的服务";

        //判断服务是否存在
        private bool IsServiceExisted(string serviceName)
        {
            ServiceController[] services = ServiceController.GetServices();
            foreach (ServiceController sc in services)
            {
                if (sc.ServiceName.ToLower() == serviceName.ToLower())
                {
                    return true;
                }
            }
            return false;
        }

        //卸载服务
        private void UninstallService(string serviceFilePath)
        {
            using (AssemblyInstaller installer = new AssemblyInstaller())
            {
                installer.UseNewContext = true;
                installer.Path = serviceFilePath;
                installer.Uninstall(null);
            }
        }
        //安装服务
        private void InstallService(string serviceFilePath)
        {
            using (AssemblyInstaller installer = new AssemblyInstaller())
            {
                installer.UseNewContext = true;
                installer.Path = serviceFilePath;
                IDictionary savedState = new Hashtable();
                installer.Install(savedState);
                installer.Commit(savedState);
            }
        }

        //启动服务
        private void ServiceStart(string serviceName)
        {
            using (ServiceController control = new ServiceController(serviceName))
            {
                if (control.Status == ServiceControllerStatus.Stopped)
                {
                    control.Start();
                }
            }
        }

        //停止服务
        private void ServiceStop(string serviceName)
        {
            using (ServiceController control = new ServiceController(serviceName))
            {
                if (control.Status == ServiceControllerStatus.Running)
                {
                    control.Stop();
                }
            }
        }

        /// <summary>
        /// 窗体加载事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {

        }

        #region 按钮事件

        /// <summary>
        /// 安装服务按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Setep_Click(object sender, EventArgs e)
        {
            if (this.IsServiceExisted(serviceName)) this.UninstallService(serviceName);
            this.InstallService(serviceFilePath);
        }


        /// <summary>
        /// 启动按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void start_Click(object sender, EventArgs e)
        {
            if (this.IsServiceExisted(serviceName)) this.ServiceStart(serviceName);
        }

        /// <summary>
        /// 停止按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void stop_Click(object sender, EventArgs e)
        {
            if (this.IsServiceExisted(serviceName)) this.ServiceStop(serviceName);
        }


        /// <summary>
        /// 卸载按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Union_Click(object sender, EventArgs e)
        {
            if (this.IsServiceExisted(serviceName))
            {
                this.ServiceStop(serviceName);
                this.UninstallService(serviceFilePath);
            }
        }

        #endregion
    }
}

先安装服务再运行服务再停止服务再写在服务 

服务已经成功安装并且启动：

 

观察日志

 

 

 说明本次小demo圆满完成