C# Quartzs定时器的使用教程
时间:2022-10-10 12:53:27|栏目:.NET代码|点击: 次
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 var LimitTime = endTime.AddHours(-mark.LimitHH.Value).AddMinutes(-mark.LimitMM.Value).AddSeconds(-mark.LimitSS.Value); //修改倒计时任务; UpdateQz(mark.AuctionId, mark.Id, endTime, LimitTime); //追加 剩余时间 和 当前结束时间; mark.SurplusTime = ""; mark.EndTime = endTime; var C1 = endTime.Subtract(DateTime.Now); var C2 = endTime.Subtract(LimitTime); if (C1 > C2) mark.AucTimeStatus = 0; else mark.AucTimeStatus = 1; Service.UpdateAny<MarkGoods>(mark, new List<string> { "SurplusTime", "EndTime", "AucTimeStatus" }); return Success(); } //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。 //if (mark.SurplusTime.IsNullOrEmpty()) //{ // return; //} //TimeSpan.TryParse(mark.SurplusTime, out TimeSpan surplusTime); //TimeSpan a = new TimeSpan(1, 1, 1); ////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 //var LimitTime = endTime.AddHours(-mark.LimitHH.Value).AddMinutes(-mark.LimitMM.Value).AddSeconds(-mark.LimitSS.Value); ////新增倒计时任务; //AddQz(mark.AuctionId, mark.Id, DateTime.Now, endTime, LimitTime); ////追加 剩余时间 和 当前结束时间; //mark.SurplusTime = ""; //mark.EndTime = endTime; //Service.UpdateAny<MarkGoods>(mark, new List<string> { "SurplusTime", "EndTime" }); } catch (Exception ex) { throw; } }
以上代码均是提供思路,使用时需要进行代码简单改动。