package com.clsystem.Comm;
import org.springframework.scheduling.annotation.Scheduled;
/**
 * Created by pudding on 2017-11-10.(打卡記錄定時任務)
 */
@Component
public class ClockTiming {
  /**
   * 定時器
   */
  @Scheduled(cron="0 0 0 * * ?")//每天0點開始
  public void insertClock(){
    //業(yè)務邏輯
  }
}

package com.clsystem.Comm;
import com.clsystem.Util.DateUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.Trigger;
import org.springframework.scheduling.TriggerContext;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.scheduling.support.CronTrigger;
import org.springframework.stereotype.Component;
import java.util.Calendar;
import java.util.Date;
/**
 * Created by pudding on 2017-11-15.(動態(tài)定時器 用于打卡前10分鐘推送消息)（!鬧鐘）
 */
@Component
public class DynamicScheduledTask implements SchedulingConfigurer {
  @Autowired
  private CheckSystemMapper checkSystemMapper;
  @Override
  public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
    taskRegistrar.addTriggerTask(new Runnable() {
      @Override
      public void run() {
        // 定時任務的業(yè)務邏輯
        System.out.println("提醒打卡");
      }
    }, new Trigger() {
      @Override
      public Date nextExecutionTime(TriggerContext triggerContext) {//設置下次定時器
        Integer day= DateUtil.getDay();//獲取今天周幾
        day+=1;//得到明天周幾
        if (day==8){//排除周日
          day=1;
        }
        String MornTime=checkSystemMapper.getCheckSystem(day).getBeforeMornTime();//獲取明天上班時間
        int j = MornTime.indexOf(":");
        Integer BeforeMornTimeHour=Integer.parseInt(MornTime.substring(0,j));//取早上上班時
        Integer BeforeMornTimeMinute=Integer.parseInt(MornTime.substring(j+1,MornTime.length()));//取早上上班分
        Date date=new Date();
        date.setHours(BeforeMornTimeHour);
        date.setMinutes(BeforeMornTimeMinute);
        date.setSeconds(0);
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.add(Calendar.MINUTE,-10);//減去10分鐘
        int hour=cal.get(Calendar.HOUR_OF_DAY);//24小時制
        int minute=cal.get(Calendar.MINUTE);//分
        String cron="0 "+minute+" "+hour+" * * "+day+"";
        System.out.println(cron);
        CronTrigger trigger = new CronTrigger(cron); // 定時任務觸發(fā)，可修改定時任務的執(zhí)行周期
        Date nextExecDate = trigger.nextExecutionTime(triggerContext);
        return nextExecDate;
      }
    });
  }
}