【.Net 学习系列】-- .Net 指定时间段内定时执行的Windows服务（System.Threading.Thread）

1. 创建一个Windows服务项目：解决方案（右击）——> 添加 ——> 新建项目——>项目类型选择Windows——>模板选择Windows服务 ，如图：
   
2. 编写Windows服务程序
   创建后会生成两个文件 Program.cs 和 Service1.cs（我已重命名为MyService.cs），编写服务内容：
   
   具体服务代码：
   

   using System;
   using System.Configuration;
   using System.ServiceProcess;
   using System.Threading;
   
   namespace WindowsServiceTest
   {
       public partial class MyService : ServiceBase
       {
   
           private Thread _thread = null;
           private bool serviceIsRun = false;  // 是否一直运行
   
           public MyService()
           {
               InitializeComponent();
           }
   
           protected override void OnStart(string[] args)
           {
               LogHelper.WriteLog("服务启动...");
               serviceIsRun = true;
               _thread = new Thread(CheckSrv);
               _thread.Start();
           }
   
           protected override void OnStop()
           {
               serviceIsRun = false;
               LogHelper.WriteLog("服务停止...");
           }
   
           protected void CheckSrv()
           {
               var beginTime = ConfigurationManager.AppSettings["BeginTime"];
               var endTime = ConfigurationManager.AppSettings["EndTime"];
               while (serviceIsRun)
               {
                   try
                   {
                       if (IsRunTime(beginTime, endTime))
                       {
                           // TODO:
                           for (int i = 0; i < 10; i++)
                           {
                               if (!IsRunTime(beginTime, endTime))
                               {
                                   Thread.Sleep(1000 * 2);
                               }
                               else
                               {
                                   LogHelper.WriteLog("当前数字：" + i);
                               }
                           }
                       }
                       else
                       {
                           Thread.Sleep(1000 * 5);
                           LogHelper.WriteLog("未达到服务执行时间...");
                       }
                   }
                   catch (Exception ex)
                   {
                       LogHelper.WriteLog("服务发生异常：" + ex.ToString());
                   }
               }
           }
   
           /// <summary>
           /// 判断程序是否在设置运行时间内
           /// </summary>
           /// <param name="startTime">开始执行时间</param>
           /// <param name="overTime">执行结束时间</param>
           /// <returns>true：在执行时间内，false：在执行时间外</returns>
           private bool IsRunTime(string startTime, string overTime)
           {
               var flag = false;
   
               var beginTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + startTime);
               var endTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + overTime);
   
               if (beginTime <= endTime)   // 当天
               {
                   flag = beginTime <= DateTime.Now && DateTime.Now <= endTime;
               }
               else    // 跨天
               {
                   var zeroTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " 00:00");
                   flag = (beginTime <= DateTime.Now && DateTime.Now <= zeroTime.AddDays(1)) || (zeroTime <= DateTime.Now && DateTime.Now <= endTime);
               }
   
               return flag;
           }
       }
   }

   配置文件：

   <?xml version="1.0" encoding="utf-8" ?>
   <configuration>
     <appSettings>
       <add key="LogPath" value="Log"/>
       <add key="BeginTime" value="10:28"/>
       <add key="EndTime" value="10:38"/>
     </appSettings>
   </configuration>

   日志代码：

   using System;
   using System.Configuration;
   using System.IO;
   using System.Text;
   
   namespace WindowsServiceTest
   {
       internal class LogHelper
       {
           /// <summary>
           /// 记录日志
           /// </summary>
           /// <param name="logContext">日志内容</param>
           public static void WriteLog(string logContext)
           {
               var logPath = AppDomain.CurrentDomain.BaseDirectory + ConfigurationManager.AppSettings["LogPath"].ToString();
               if (!Directory.Exists(logPath))
               {
                   Directory.CreateDirectory(logPath);
               }
               var filePath = logPath + "\" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
               var fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write);
               var m_streamWriter = new StreamWriter(fs);
               m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
               var sb = new StringBuilder();
               if (!string.IsNullOrEmpty(logContext))
               {
                   sb.Append(Environment.NewLine);
                   sb.Append(logContext);
               }
               sb.Append(" "+DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:ffff")+Environment.NewLine);
               m_streamWriter.WriteLine(sb.ToString());
               m_streamWriter.Flush();
               m_streamWriter.Close();
               fs.Close();
           }
       }
   }