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.net 启动进程并执行某方法

需求，程序每20秒自动请求接口抓取数据

解决方式：

在程序根目录下的Global.asax.cs下编写

using System.Threading;
using System.Timers;

<br>/// <summary>
       /// 启动应用程序
       /// </summary>
       protected void Application_Start()
       {
           AreaRegistration.RegisterAllAreas();
           FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
           RouteConfig.RegisterRoutes(RouteTable.Routes);
           //// 启动的时候清除全部缓存
           ////定时器
           userIBLL.SaveLog("应用程序启动", "Application_Start");
           System.Timers.Timer aTimer = new System.Timers.Timer();
           aTimer.Elapsed += new ElapsedEventHandler(getMessages);
           //aTimer.AutoReset = true;
           aTimer.Interval = 20000;
           aTimer.Enabled = true;
           aTimer.Start();
           userIBLL.SaveLog("应用程序启动", "2");
       }

protected void Application_End(object sender, EventArgs e)
       {
           userIBLL.SaveLog("自动回收", "重新执行");
           //下面的代码是关键，可解决IIS应用程序池自动回收的问题  
           Thread.Sleep(1000);
           HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(需要重新启动程序的地址);
           HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
           Stream receiveStream = myHttpWebResponse.GetResponseStream();//得到回写的字节流  
       }
       protected void Application_Error(object sender, EventArgs e)
       {
           //重新启动应用程序
 
           var lastError = Server.GetLastError();
            
       }
       private void getMessages(object source, ElapsedEventArgs e)
       {
           try
           {
 
               <strong>写入需要执行的程序</strong>
           }
           catch (Exception ex)
           {
               //打log日志
           }
       }