C# windows服務定時執行

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接着上一篇：C# 創建windows服務 並通過winform 程序控制服務的 安裝 啟動 停止 卸載 

本節來看看如何實現定時執行windows服務，其實也沒什么好說的，時間緊急，主要就是代碼，如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;

namespace WindowsServices
{
    public partial class MyService : ServiceBase
    {
        System.Timers.Timer timer1;  //計時器
        string filePath = @"D:\MyServiceLog.txt";
        public MyService()
        {
            InitializeComponent();
        }
      
        protected override void OnStart(string[] args)
        {
            using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine($"{DateTime.Now},服務啟動！");
            }
            timer1 = new System.Timers.Timer();
            timer1.Interval = 3000;  //設置計時器事件間隔執行時間  每隔三秒執行一次
            timer1.Elapsed += new System.Timers.ElapsedEventHandler(timer1_Elapsed);
            timer1.Enabled = true;
        }

        protected override void OnPause()
        {
            //服務暫停執行代碼
            using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine($"{DateTime.Now},服務暫停！");
            }
            //禁用定時器
            timer1.Enabled = false;
        }

        protected override void OnContinue()
        {
            //服務恢復執行代碼
            using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine($"{DateTime.Now},服務恢復！");
            }
            //啟動定時器
            timer1.Enabled = true;
        }

        protected override void OnStop()
        {
            using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine($"{DateTime.Now},服務停止！");
            }
            //禁用定時器
            timer1.Enabled = false;
        }

        private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            using (FileStream stream = new FileStream(filePath, FileMode.Append))
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine($"{DateTime.Now},執行了一次！");
            }
        }
    }
}

效果圖如下：

 

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