【.Net 学习系列】-- .Net 指定时间段内定时执行…

2018-06-18 04:38:08来源：未知阅读 ()

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：

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：

 1 using System;
 2 using System.Configuration;
 3 using System.ServiceProcess;
 4 using System.Threading;
 5 
 6 namespace WindowsServiceTest
 7 {
 8     public partial class MyService : ServiceBase
 9     {
10 
11         private Thread _thread = null;
12         private bool serviceIsRun = false;  // 是否一直运行
13 
14         public MyService()
15         {
16             InitializeComponent();
17         }
18 
19         protected override void OnStart(string[] args)
20         {
21             LogHelper.WriteLog("服务启动...");
22             serviceIsRun = true;
23             _thread = new Thread(CheckSrv);
24             _thread.Start();
25         }
26 
27         protected override void OnStop()
28         {
29             serviceIsRun = false;
30             LogHelper.WriteLog("服务停止...");
31         }
32 
33         protected void CheckSrv()
34         {
35             var beginTime = ConfigurationManager.AppSettings["BeginTime"];
36             var endTime = ConfigurationManager.AppSettings["EndTime"];
37             while (serviceIsRun)
38             {
39                 try
40                 {
41                     if (IsRunTime(beginTime, endTime))
42                     {
43                         // TODO:
44                         for (int i = 0; i < 10; i++)
45                         {
46                             if (!IsRunTime(beginTime, endTime))
47                             {
48                                 Thread.Sleep(1000 * 2);
49                             }
50                             else
51                             {
52                                 LogHelper.WriteLog("当前数字：" + i);
53                             }
54                         }
55                     }
56                     else
57                     {
58                         Thread.Sleep(1000 * 5);
59                         LogHelper.WriteLog("未达到服务执行时间...");
60                     }
61                 }
62                 catch (Exception ex)
63                 {
64                     LogHelper.WriteLog("服务发生异常：" + ex.ToString());
65                 }
66             }
67         }
68 
69         /// <summary>
70         /// 判断程序是否在设置运行时间内
71         /// </summary>
72         /// <param name="startTime">开始执行时间</param>
73         /// <param name="overTime">执行结束时间</param>
74         /// <returns>true：在执行时间内，false：在执行时间外</returns>
75         private bool IsRunTime(string startTime, string overTime)
76         {
77             var flag = false;
78 
79             var beginTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + startTime);
80             var endTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + overTime);
81 
82             if (beginTime <= endTime)   // 当天
83             {
84                 flag = beginTime <= DateTime.Now && DateTime.Now <= endTime;
85             }
86             else    // 跨天
87             {
88                 var zeroTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " 00:00");
89                 flag = (beginTime <= DateTime.Now && DateTime.Now <= zeroTime.AddDays(1)) || (zeroTime <= DateTime.Now && DateTime.Now <= endTime);
90             }
91 
92             return flag;
93         }
94     }
95 }

View Code

配置文件：

1 <?xml version="1.0" encoding="utf-8" ?>
2 <configuration>
3   <appSettings>
4     <add key="LogPath" value="Log"/>
5     <add key="BeginTime" value="10:28"/>
6     <add key="EndTime" value="10:38"/>
7   </appSettings>
8 </configuration>

View Code

日志代码：

 1 using System;
 2 using System.Configuration;
 3 using System.IO;
 4 using System.Text;
 5 
 6 namespace WindowsServiceTest
 7 {
 8     internal class LogHelper
 9     {
10         /// <summary>
11         /// 记录日志
12         /// </summary>
13         /// <param name="logContext">日志内容</param>
14         public static void WriteLog(string logContext)
15         {
16             var logPath = AppDomain.CurrentDomain.BaseDirectory + ConfigurationManager.AppSettings["LogPath"].ToString();
17             if (!Directory.Exists(logPath))
18             {
19                 Directory.CreateDirectory(logPath);
20             }
21             var filePath = logPath + "\\" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
22             var fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write);
23             var m_streamWriter = new StreamWriter(fs);
24             m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);
25             var sb = new StringBuilder();
26             if (!string.IsNullOrEmpty(logContext))
27             {
28                 sb.Append(Environment.NewLine);
29                 sb.Append(logContext);
30             }
31             sb.Append(" "+DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:ffff")+Environment.NewLine);
32             m_streamWriter.WriteLine(sb.ToString());
33             m_streamWriter.Flush();
34             m_streamWriter.Close();
35             fs.Close();
36         }
37     }
38 }