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C# Quartzs定时器的使用教程

作者:CoolDog;

想到倒计时,定时任务,大家首先想到的肯定就是定时器,定时器在web和winfrom程序中也有着很大的作用。本文也将为大家介绍Quartzs定时器的简单使用。需要的朋友可以参考一下

前言

首先想到倒计时,定时任务。大家想到的肯定就是定时器。那么定时器在web和winfrom程序中有着很大的作用。那在服务器端有没有像定时器一样的存在呢。

有了这些需求,我找到了第三方的组件 Quartz.Net 来实现(源码位置

实现步骤

(1)第一步,通过NuGet下载Quartz.Net组件并且引用到当前工程中

(2)创建两个类,一个是操作类,一个类继承IJob 并且需要实现IJob的方法。 

/// <summary>
    /// 操作类
    /// </summary>
    public class Operation : BaseBusiness<Auction>
    {

        #region 实例化

        public Operation()
        {
            _options = new Options();
        }

        internal IOptions _options { get; }

        #endregion

        public static IScheduler scheduler;
        public static ISchedulerFactory factory;
        /// <summary>
        /// 获取cron表达式
        /// </summary>
        /// <param name="time">时间</param>
        /// <returns></returns>
        public string GetCron(DateTime? time)
        {
            var txt = Convert.ToDateTime(time).ToString("yyyy-MM-dd-HH-mm-ss");
            var arr = txt.Split('-');
            var result = string.Format("{0} {1} {2} {3} {4} ? {5}", arr[5], arr[4], arr[3], arr[2], arr[1], arr[0]);
            return result;
        }
        /// <summary>
        /// 删除job
        /// </summary>
        /// <param name="Id">拍卖数据对象主键</param>
        /// <param name="GroupName">job的组名</param>
        public void RemoveJob(string Id, string MarkGoodsId, string GroupName)
        {
            //var jobKey = new JobKey(GroupName + Id + MId + "j", GroupName);
            var job = new JobKey(GroupName + Id + MarkGoodsId + "j", GroupName);
            scheduler.DeleteJob(job);
        }


        //清楚所有定时任务
        public void ClearJob()
        {
            if (scheduler != null)
            {
                scheduler.Clear();

            }
        }


    }
public class SetAuctionings : Operation, IJob
    {
        public async Task Execute(IJobExecutionContext context)
        {
            await Task.Run(() =>
            {

                DateTime freeTime = context.JobDetail.JobDataMap.GetDateTime("FreeTime");
                var now = DateTime.Now;

                //记录两个时间的差
                var days = freeTime.Subtract(now).Days;
                var hours = freeTime.Subtract(now).Hours;
                var minutes = freeTime.Subtract(now).Minutes;
                var seconds = freeTime.Subtract(now).Seconds;
                var result = days + "天" + hours + "时" + minutes + "分" + seconds + "秒";
//推送倒计时
                PushHelper.AuctionCountDown(markId, days, hours, minutes, seconds);





                //getTriggerState


            });
        }


/// <summary>
        /// 设置定时任务
        /// </summary>
        /// <param name="Id">标的ID</param>
        public void AddQz(DateTime BeginTime, DateTime FreeTime)
        {

            var GroupName = _options.GetPKById<Options_AuctionState>("1316283839361847296").ToString();
            factory = new StdSchedulerFactory();
            scheduler = factory.GetScheduler().Result;
            var jobKey = new JobKey(GroupName + Id + MId + "j", GroupName);
            var GjobDetail = scheduler.GetJobDetail(jobKey);
            if (GjobDetail != null)
            {
                //删除任务
                scheduler.DeleteJob(jobKey);
            }


            //设置Job  StatefulJob 
            var job = JobBuilder.Create<SetAuctionings>()
                       .WithIdentity(GroupName + Id + MId + "j", GroupName)
                       .Build();



            job.JobDataMap.Put("FreeTime", FreeTime);
//【方法1】 设置每秒执行
            ITrigger trigger = TriggerBuilder.Create()
                .WithIdentity(GroupName + Id + MId + "t", GroupName)
                .WithSimpleSchedule(x => x.WithIntervalInSeconds(1)
                .RepeatForever())
                .StartAt(new DateTimeOffset(BeginTime))
                .EndAt(new DateTimeOffset(FreeTime))
                .Build();


            //【方法2】
            //var ExecSs = "0/1 * * * * ?";
            //ITrigger trigger = TriggerBuilder.Create()
            //    .WithIdentity(GroupName + Id + MeetingPlace + "t", GroupName)
            //    .WithCronSchedule(ExecSs)
            //    .StartAt(new DateTimeOffset(BeginTime))
            //    .EndAt(new DateTimeOffset(FreeTime))
            //    .Build();

            scheduler.ScheduleJob(job, trigger);
        }

    }

以上是一个简单的封装,可以根据这个倒计时的推送。增加一些封装 如:暂停,恢复,结束,更新等。

调用的话只需要简单的实例化一下进行调用。

然后我在大概说下其他封装的思路和代码片段;

延时倒计时:

根据传过来的参数时间进行一个修改,删除之前的任务重新开始一个任务;

/// <summary>
        /// 【拍卖延时】修改倒计时任务
        /// </summary>
        /// <param name="Id"></param>
        /// <param name="MeetingPlace"></param>
        /// <param name="FreeTime"></param>
        public void UpdateQz(String Id, string Mid, DateTime FreeTime, DateTime LimitTime)
        {
 
 
            //scheduler = factory.GetScheduler().Result;
            //if (scheduler == null)
            //    return;
 
            //拍卖进行中
            var GroupName = _options.GetPKById<Options_AuctionState>("1316283839361847296").ToString();
            var jobKey = new JobKey(GroupName + Id + Mid + "j", GroupName);
            var GjobDetail = scheduler.GetJobDetail(jobKey);
            if (GjobDetail.Result == null)
                return;
 
 
            var triggerKey = new TriggerKey(GroupName + Id + Mid + "t", GroupName);
            var triggerr = scheduler.GetTrigger(triggerKey);
            var triggerBuilder = triggerr.Result.GetTriggerBuilder();
            //修改结束时间 WithCronSchedule(ExecSs).
            ITrigger newTrigger = triggerBuilder.EndAt(new DateTimeOffset(FreeTime)).Build();
 
 
 
            var job = GjobDetail.Result;
            job.JobDataMap.Put("AuctionId", Id);
            job.JobDataMap.Put("MarkId", Mid);
            job.JobDataMap.Put("FreeTime", FreeTime);
            job.JobDataMap.Put("LimitTime", LimitTime);
 
 
            //删除任务
            scheduler.DeleteJob(jobKey);
            scheduler.ScheduleJob(job, newTrigger);
 
 
            //修改最终结束的定时任务;
            SetAuctioneds setAuctioneds = new SetAuctioneds();
            setAuctioneds.SetEndQz(Id, FreeTime, Mid);
        }

倒计时暂停:

调用组件的PauseTrigger方法可以进行暂停;

/// <summary>
/// 倒计时暂停
/// </summary>
public AjaxResult StopQz(string Id, string MId)
{
    try
    {
 
 
 
        //方法1
        //拍卖进行中
        var GroupName = _options.GetPKById<Options_AuctionState>("1316283839361847296").ToString();
 
 
 
        var mark = Service.GetIQueryable<MarkGoods>().FirstOrDefault(x => x.Id == MId);
        if (mark == null)
            return Error("找不到标的!");
 
 
        //获取实际结束时间。
        var subEndTime = mark.EndTime.Value;
        //计算暂停后剩余的时间  = audEndTime(结束时间) - 当前时间
        var nowEndTime = DateTime.Now;
        var DifferTime = subEndTime.Subtract(nowEndTime);
 
        //追加 剩余时间 和 当前结束时间;
        mark.SurplusTime = DifferTime.ToString();
        //mark.EndTime = nowEndTime;
 
 
 
 
        //GroupName + Id + MId + "t", GroupName
        var TriKey = new TriggerKey(GroupName + Id + MId + "t", GroupName);
 
 
        var Result = scheduler.GetTriggerState(TriKey).Result;
        if (Result == TriggerState.None)
        {
            return Error("失败:不存在此任务!");
        }
 
 
        if (Result == TriggerState.Paused)//暂停
        {
            return Success("失败:该任务已暂停!");
 
        }
        else
        {
            scheduler.PauseTrigger(TriKey);
            mark.AucTimeStatus = 2;
            Service.UpdateAny<MarkGoods>(mark, new List<string> { "SurplusTime", "AucTimeStatus" });
            return Success("成功:任务已暂停");
        }
 
 
 
 
        //方法2
        //var mark = Service.GetIQueryable<MarkGoods>().FirstOrDefault(x => x.Id == MId);
        //if (mark == null)
        //    return;
 
 
        ////获取实际结束时间。
        //var subEndTime = mark.EndTime.Value;
        ////计算暂停后剩余的时间  = audEndTime(结束时间) - 当前时间
        //var nowEndTime = DateTime.Now;
        //var DifferTime = subEndTime.Subtract(nowEndTime);
 
        ////追加 剩余时间 和 当前结束时间;
        //mark.SurplusTime = DifferTime.ToString();
        ////mark.EndTime = nowEndTime;
        //Service.UpdateAny<MarkGoods>(mark, new List<string> { "SurplusTime" });
 
 
 
        ////拍卖进行中
        //var GroupName = _options.GetPKById<Options_AuctionState>("1316283839361847296").ToString();
        ////关闭该定时器
        //RemoveJob(mark.AuctionId, mark.Id, GroupName);
 
    }
    catch (Exception)
    {
 
        throw;
    }
 
 
}

倒计时恢复:

俗话说得好破镜难圆,泼出去的水很难收回来。恢复也是这个道理,比如:倒计时走到了7暂停,那么恢复的时候如何从7继续呢。这里就牵扯到了时间戳并且存入数据库的介入了。

/// <summary>
        /// 恢复倒计时
        /// </summary>
        public AjaxResult ReturnQz(string Id, string MId)
        {
            try
            {


                var mark = Service.GetIQueryable<MarkGoods>().FirstOrDefault(x => x.Id == MId);
                if (mark == null)
                    return Error();
                //获取实际结束时间。
                if (mark.SurplusTime.IsNullOrEmpty())
                {
                    return Error();
                }
                TimeSpan.TryParse(mark.SurplusTime, out TimeSpan surplusTime);
                //方法1
                //拍卖进行中
                //拍卖进行中
                var GroupName = _options.GetPKById<Options_AuctionState>("1316283839361847296").ToString();
                var TriKey = new TriggerKey(GroupName + Id + MId + "t", GroupName);

                var Result = scheduler.GetTriggerState(TriKey).Result;
                if (Result == TriggerState.None)
                {
                    return Error("失败:不存在此任务!");
                }
                if (Result == TriggerState.Normal)//暂停
                {
                    return Error("失败:任务正在进行,无需恢复!");

                }
                else
                {

                    //结束时间  = 当前时间 + 剩余时间
                    var endTime = DateTime.Now.Add(surplusTime);
                    //获取限时竞价时间