定时器

  /// <summary>
    /// 定时器
    /// </summary>
    public class WebTimer_AutoRepayment
    {
        static WebTimer_AutoRepayment()
        {
            _WebTimerTask = new WebTimer_AutoRepayment();
        }
        /// <summary>
        /// 实例化
        /// </summary>
        /// <returns></returns>
        public static WebTimer_AutoRepayment Instance()
        {
            return _WebTimerTask;
        }
        /// <summary>
        /// 执行的方法(修改显示状态)
        /// </summary>
        private void ExecuteMain()
        {
            VMCDUBusinessRequirement vMBusiness = new VMCDUBusinessRequirement();
            vMBusiness.UptBR();
        }
        #region Timer 计时器定义(0:20 / 6:20 启动)
        /// <summary>
        /// 调用 callback 的时间间隔。
        /// </summary>
        private static int Period = 6 * 60 * 60 * 1000;
        /// <summary>
        /// 调用 callback 之前延迟的时间量。
        /// </summary>
        private static int dueTime = 3 * 1000;//三分钟后启动
        /// <summary>
        ///第几次执行
        /// </summary>
        private long Times = 0;
        /// <summary>
        /// 实例化一个对象
        /// </summary>
        private static readonly WebTimer_AutoRepayment _WebTimerTask = null;
        private Timer WebTimerObj = null;
        /// <summary>
        /// 是否正在执行
        /// </summary>
        private int _IsRunning;
        /// <summary>
        /// 开始
        /// </summary>
        public void Start()
        {
            if (WebTimerObj == null)
            {
                DateTime now = DateTime.Now;
                int minutes = now.Minute;        
                if (minutes >= 50)
                {
                    dueTime = 0;//立即启动
                }
                else
                {
                    dueTime = (50 - minutes) * 60 * 1000;// 9:50 启动
                }
                WebTimerObj = new Timer(new TimerCallback(WebTimer_Callback), null, dueTime, Period);
            }
        }
        /// <summary>
        /// WebTimer的主函数
        /// </summary>
        /// <param name="sender"></param>
        private void WebTimer_Callback(object sender)
        {           
            try
            {
                Log log = new Log(AppDomain.CurrentDomain.BaseDirectory + @"/log/TimerLog.txt");
                if (Interlocked.Exchange(ref _IsRunning, 1) == 0)
                {
                    ExecuteMain();
                    Times++;
                    Times = (Times % 100000);
                    log.log(" 启动定时器进行修改提醒状态;");
                }
            }
            catch (Exception ex)
            {
                Log log = new Log(AppDomain.CurrentDomain.BaseDirectory + @"/log/TimerMessageLog.txt");
                log.log(" 错误提示：" + ex.ToString());
            }
            finally
            {
                Interlocked.Exchange(ref _IsRunning, 0);
            }
        }
        /// <summary>
        /// 停止
        /// </summary>
        public void Stop()
        {
            if (WebTimerObj != null)
            {
                WebTimerObj.Dispose();
                WebTimerObj = null;
            }
        }
        #endregion

    }

///////////////////////////////////////////////////////////////////////////

Global.asax

 

protected void Application_Start()
        {
            //在应用程序启动时运行的代码
            WebTimer_AutoRepayment.Instance().Start();
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }

        void Application_End(object sender, EventArgs e)
        {
            //在应用程序关闭时运行的代码
            WebTimer_AutoRepayment.Instance().Stop();
        }