package com.ibm.scheduler;
import java.util.Timer;
import java.util.TimerTask;
public class TimerTest extends TimerTask {
 private String jobName = "";
 public TimerTest(String jobName) {
 super();
 this.jobName = jobName;
 }
 @Override
 public void run() {
 System.out.println("execute " + jobName);
 }
 public static void main(String[] args) {
 Timer timer = new Timer();
 long delay1 = 1 * 1000;
 long period1 = 1000;
 // 從現(xiàn)在開(kāi)始 1 秒鐘之后，每隔 1 秒鐘執(zhí)行一次 job1
 timer.schedule(new TimerTest("job1"), delay1, period1);
 long delay2 = 2 * 1000;
 long period2 = 2000;
 // 從現(xiàn)在開(kāi)始 2 秒鐘之后，每隔 2 秒鐘執(zhí)行一次 job2
 timer.schedule(new TimerTest("job2"), delay2, period2);
 }
}

execute job1
execute job1
execute job2
execute job1
execute job1
execute job2

package com.ibm.scheduler;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class ScheduledExecutorTest implements Runnable {
    private String jobName = "";
    public ScheduledExecutorTest(String jobName) {
        super();
        this.jobName = jobName;
    }
    @Override
    public void run() {
        System.out.println("execute " + jobName);
    }
    public static void main(String[] args) {
        ScheduledExecutorService service = Executors.newScheduledThreadPool(10);
        long initialDelay1 = 1;
        long period1 = 1;
    // 從現(xiàn)在開(kāi)始1秒鐘之后，每隔1秒鐘執(zhí)行一次job1
        service.scheduleAtFixedRate(
            new ScheduledExecutorTest("job1"), initialDelay1,
                period1, TimeUnit.SECONDS);
        long initialDelay2 = 1;
        long delay2 = 1;
    // 從現(xiàn)在開(kāi)始2秒鐘之后，每隔2秒鐘執(zhí)行一次job2
        service.scheduleWithFixedDelay(
            new ScheduledExecutorTest("job2"), initialDelay2,
                delay2, TimeUnit.SECONDS);
    }
}

execute job2
execute job1
execute job2
execute job1
execute job2
execute job1

package com.ibm.scheduler;
import java.util.Calendar;
import java.util.Date;
import java.util.TimerTask;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class ScheduledExceutorTest2 extends TimerTask {
    private String jobName = "";
    public ScheduledExceutorTest2(String jobName) {
        super();
        this.jobName = jobName;
    }
    @Override
    public void run() {
        System.out.println("Date = "+new Date()+", execute " + jobName);
    }
    /**
     * 計(jì)算從當(dāng)前時(shí)間currentDate開(kāi)始，滿足條件dayOfWeek, hourOfDay,
     * minuteOfHour, secondOfMinite的最近時(shí)間
     * @return
     */
    public Calendar getEarliestDate(Calendar currentDate, int dayOfWeek,
            int hourOfDay, int minuteOfHour, int secondOfMinite) {
        //計(jì)算當(dāng)前時(shí)間的WEEK_OF_YEAR,DAY_OF_WEEK, HOUR_OF_DAY, MINUTE,SECOND等各個(gè)字段值
        int currentWeekOfYear = currentDate.get(Calendar.WEEK_OF_YEAR);
        int currentDayOfWeek = currentDate.get(Calendar.DAY_OF_WEEK);
        int currentHour = currentDate.get(Calendar.HOUR_OF_DAY);
        int currentMinute = currentDate.get(Calendar.MINUTE);
        int currentSecond = currentDate.get(Calendar.SECOND);
        //如果輸入條件中的dayOfWeek小于當(dāng)前日期的dayOfWeek,則WEEK_OF_YEAR需要推遲一周
        boolean weekLater = false;
        if (dayOfWeek < currentDayOfWeek) {
            weekLater = true;
        } else if (dayOfWeek == currentDayOfWeek) {
            //當(dāng)輸入條件與當(dāng)前日期的dayOfWeek相等時(shí)，如果輸入條件中的
            //hourOfDay小于當(dāng)前日期的
            //currentHour，則WEEK_OF_YEAR需要推遲一周
            if (hourOfDay < currentHour) {
                weekLater = true;
            } else if (hourOfDay == currentHour) {
         //當(dāng)輸入條件與當(dāng)前日期的dayOfWeek, hourOfDay相等時(shí)，
         //如果輸入條件中的minuteOfHour小于當(dāng)前日期的
                //currentMinute，則WEEK_OF_YEAR需要推遲一周
                if (minuteOfHour < currentMinute) {
                    weekLater = true;
                } else if (minuteOfHour == currentSecond) {
           //當(dāng)輸入條件與當(dāng)前日期的dayOfWeek, hourOfDay，
           //minuteOfHour相等時(shí)，如果輸入條件中的
          //secondOfMinite小于當(dāng)前日期的currentSecond，
          //則WEEK_OF_YEAR需要推遲一周
                    if (secondOfMinite < currentSecond) {
                        weekLater = true;
                    }
                }
            }
        }
        if (weekLater) {
            //設(shè)置當(dāng)前日期中的WEEK_OF_YEAR為當(dāng)前周推遲一周
            currentDate.set(Calendar.WEEK_OF_YEAR, currentWeekOfYear + 1);
        }
        // 設(shè)置當(dāng)前日期中的DAY_OF_WEEK,HOUR_OF_DAY,MINUTE,SECOND為輸入條件中的值。
        currentDate.set(Calendar.DAY_OF_WEEK, dayOfWeek);
        currentDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
        currentDate.set(Calendar.MINUTE, minuteOfHour);
        currentDate.set(Calendar.SECOND, secondOfMinite);
        return currentDate;
    }
    public static void main(String[] args) throws Exception {
        ScheduledExceutorTest2 test = new ScheduledExceutorTest2("job1");
        //獲取當(dāng)前時(shí)間
        Calendar currentDate = Calendar.getInstance();
        long currentDateLong = currentDate.getTime().getTime();
        System.out.println("Current Date = " + currentDate.getTime().toString());
        //計(jì)算滿足條件的最近一次執(zhí)行時(shí)間
        Calendar earliestDate = test
                .getEarliestDate(currentDate, 3, 16, 38, 10);
        long earliestDateLong = earliestDate.getTime().getTime();
        System.out.println("Earliest Date = "
                + earliestDate.getTime().toString());
        //計(jì)算從當(dāng)前時(shí)間到最近一次執(zhí)行時(shí)間的時(shí)間間隔
        long delay = earliestDateLong - currentDateLong;
        //計(jì)算執(zhí)行周期為一星期
        long period = 7 * 24 * 60 * 60 * 1000;
        ScheduledExecutorService service = Executors.newScheduledThreadPool(10);
        //從現(xiàn)在開(kāi)始delay毫秒之后，每隔一星期執(zhí)行一次job1
        service.scheduleAtFixedRate(test, delay, period,
                TimeUnit.MILLISECONDS);
    }
}

Current Date = Wed Feb 02 17:32:01 CST 2011
Earliest Date = Tue Feb 8 16:38:10 CST 2011
Date = Tue Feb 8 16:38:10 CST 2011, execute job1
Date = Tue Feb 15 16:38:10 CST 2011, execute job1

package com.ibm.scheduler;
import java.util.Date;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.helpers.TriggerUtils;
public class QuartzTest implements Job {
    @Override
    //該方法實(shí)現(xiàn)需要執(zhí)行的任務(wù)
    public void execute(JobExecutionContext arg0) throws JobExecutionException {
        System.out.println("Generating report - "
                + arg0.getJobDetail().getFullName() + ", type ="
                + arg0.getJobDetail().getJobDataMap().get("type"));
        System.out.println(new Date().toString());
    }
    public static void main(String[] args) {
        try {
            // 創(chuàng)建一個(gè)Scheduler
            SchedulerFactory schedFact =
            new org.quartz.impl.StdSchedulerFactory();
            Scheduler sched = schedFact.getScheduler();
            sched.start();
            // 創(chuàng)建一個(gè)JobDetail，指明name，groupname，以及具體的Job類名，
            //該Job負(fù)責(zé)定義需要執(zhí)行任務(wù)
            JobDetail jobDetail = new JobDetail("myJob", "myJobGroup",
                    QuartzTest.class);
            jobDetail.getJobDataMap().put("type", "FULL");
      // 創(chuàng)建一個(gè)每周觸發(fā)的Trigger，指明星期幾幾點(diǎn)幾分執(zhí)行
            Trigger trigger = TriggerUtils.makeWeeklyTrigger(3, 16, 38);
            trigger.setGroup("myTriggerGroup");
            // 從當(dāng)前時(shí)間的下一秒開(kāi)始執(zhí)行
            trigger.setStartTime(TriggerUtils.getEvenSecondDate(new Date()));
            // 指明trigger的name
            trigger.setName("myTrigger");
            // 用scheduler將JobDetail與Trigger關(guān)聯(lián)在一起，開(kāi)始調(diào)度任務(wù)
            sched.scheduleJob(jobDetail, trigger);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Generating report - myJobGroup.myJob, type =FULL
Tue Feb 8 16:38:00 CST 2011
Generating report - myJobGroup.myJob, type =FULL
Tue Feb 15 16:38:00 CST 2011