public class FirstJob : IJob

    {

        public void Execute(IJobExecutionContext context)

        {

            try

            {

                Common.LogHelper.WriteLog(DateTime.Now.ToString() + ":执行计划开始");//写log

                 //你需要执行的计划任务

            }

            catch (Exception ex)

            {

                Common.LogHelper.WriteError(DateTime.Now.ToString() + ":执行计划出现了错误;", ex);

                throw;

            }

        }

 public void Start()

        {

            try

            {

                IScheduler scheduler = StdSchedulerFactory.GetDefaultScheduler();//获取默认的scheduler

                string quartzExperssion= ConfigurationManager.AppSettings["QuartzExpression"];

                if (string.IsNullOrWhiteSpace(quartzExperssion))

                {

                    quartzExpression = "0 0 2 * * ?";//默认成凌晨两点

                }

                scheduler.Start();

                IJobDetail job = JobBuilder.Create<HistoryDataMoveJob>()

                   .WithIdentity("我的计划", "计划")

                   .Build();

                ITrigger trigger = TriggerBuilder.Create()

                    .WithIdentity("我的计划", "计划")

                    .StartNow()

                    .WithCronSchedule(clocktimeExpression)//0 0 12 * * ?

                    .Build();

                scheduler.ScheduleJob(job, trigger);

                Common.LogHelper.WriteLog(DateTime.Now.ToString() + ":启动任务计划");

            }

            catch (Exception ex)

            {

                Common.LogHelper.WriteError(DateTime.Now.ToString() + ":启动计划任务失败", ex);

            }

        }