quartz入門（二）SimpleTrigger簡單一實例

http://blog.csdn.net/wo541075754/article/details/46502819

此篇部落格為quartz2.2.1第二個例子的解析，此例子主要對SimpleTrigger的使用進行詳細說明，詳細使用說明均在代碼中以注釋的形式體現。 SimpleTrigger:在某個時刻開始，然後按照某個時間間隔重複執行。 SimpleTrigger包括屬性：開始時間，結束時間，重複次數，重複間隔。 SimpleJob

package com.secbro.job;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.quartz.JobKey;import java.util.Date;/** */public class SimpleJob implements Job {    @Override    public void execute(JobExecutionContext context) throws JobExecutionException {        // JobExecutionContext類提供了調度上線問的各種資訊,為JobDetail和Trigger提供必要的資訊        // JobKey是由name和group組成，並且name必須在group內是唯一的。如果只指定一組則將使用預設的組名。        JobKey jobKey = context.getJobDetail().getKey();        System.out.println("SimpleJob says: " + jobKey + " executing at " + new Date());    }}

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package com.secbro.test;import com.secbro.job.SimpleJob;import org.quartz.*;import org.quartz.impl.StdSchedulerFactory;import java.util.Date;/** * SimpleTrigger:在某個時刻開始，然後按照某個時間間隔重複執行;<br> * SimpleTrigger包括屬性：開始時間，結束時間，重複次數，重複間隔。 */public class SimpleTriggerExample {    public void run() throws SchedulerException {        // 通過SchedulerFactory擷取一個調度器執行個體        StdSchedulerFactory sf = new StdSchedulerFactory();        // 代表一個Quartz的獨立運行容器        Scheduler scheduler = sf.getScheduler();        // 擷取目前時間15秒之後的時間        Date startDate = DateBuilder.nextGivenSecondDate(null,15);        // ------------------------------------------Job1 start-------------------------------------------------        // 建立一個JobDetail執行個體,此版本JobDetail已經作為介面（interface）存在，通過JobBuilder建立        // 並指定Job在Scheduler中所屬組及名稱        JobDetail jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job1","group1").build();        // SimpleTrigger實現Trigger介面的子介面。此處只指定了開始執行定時任務的時間，使用預設的重複次數（0次）和重複間隔（0秒）        SimpleTrigger simpleTrigger = (SimpleTrigger) TriggerBuilder.newTrigger().withIdentity("trigger1","group1").                startAt(startDate).build();        // 添加JobDetail到Scheduler容器中，並且和Trigger進行關聯，返回執行時間        Date date = scheduler.scheduleJob(jobDetail,simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job1 end-------------------------------------------------        // ------------------------------------------Job2 start-------------------------------------------------        // 與job1相同處理方式的job2，幾乎同時執行兩個job1和job2任務        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job2","group1").build();        simpleTrigger = (SimpleTrigger) TriggerBuilder.newTrigger().withIdentity("trigger2","group1").startAt(startDate).build();        date = scheduler.scheduleJob(jobDetail,simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job2 end-------------------------------------------------        // ------------------------------------------Job3 start-------------------------------------------------        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job3","group1").build();        // 設定定時任務執行規則為在指定的開始時間進行執行，每個十秒執行一次，重複執行十次。        // 當指定為SimpleScheduleBuilder時，會發現不用對結果進行強制轉換為SimpleTrigger了。        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger3", "group1").startAt(startDate)                .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(10).withRepeatCount(10)).build();        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        scheduler.scheduleJob(jobDetail,simpleTrigger);        // forJob 指定trigger對應的定時任務，另外一種實現形式。此Trigger和上面的Trigger共同出發一個任務，執行各自均執行        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger3","group2").startAt(startDate)                .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(10).withRepeatCount(2)).forJob(jobDetail).build();        scheduler.scheduleJob(simpleTrigger);        System.out.println(jobDetail.getKey() + " will [also] run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job3 end-------------------------------------------------        // ------------------------------------------Job4 start-----------------------------------------------        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job4","group1").build();        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger4", "group1").startAt(startDate).                withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(10).withRepeatCount(5)).build();        date = scheduler.scheduleJob(jobDetail, simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job4 end-------------------------------------------------        // ------------------------------------------Job5 start-------------------------------------------------        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job5", "group1").build();        simpleTrigger = (SimpleTrigger)TriggerBuilder.newTrigger().withIdentity("trigger5", "group1")                .startAt(DateBuilder.futureDate(5, DateBuilder.IntervalUnit.MINUTE)).build();        date = scheduler.scheduleJob(jobDetail, simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job5 end-------------------------------------------------        // ------------------------------------------Job6 start-----------------------------------------------        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job6", "group1").build();        // 此定時任務的規則為每隔40秒執行一次，永遠執行下去        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger6", "group1").startAt(startDate)                .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(40).repeatForever()).build();        date = scheduler.scheduleJob(jobDetail, simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount() + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job6 end-------------------------------------------------        System.out.println("------- Starting Scheduler ----------------");        // 在scheduler.start之後調用，可以重新定義trigger，重新註冊        scheduler.start();        System.out.println("------- Started Scheduler -----------------");        // ------------------------------------------Job7 start-----------------------------------------------        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job7", "group1").build();        // 每隔五分鐘執行一次，執行20次        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger7", "group1").startAt(startDate)                .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInMinutes(5).withRepeatCount(20)).build();        date = scheduler.scheduleJob(jobDetail, simpleTrigger);        System.out.println(jobDetail.getKey() + " will run at: " + date + " and repeat: " + simpleTrigger.getRepeatCount()                + " times, every " + simpleTrigger.getRepeatInterval() / 1000L + " seconds");        // ------------------------------------------Job7 end-------------------------------------------------        // ------------------------------------------Job8 start-----------------------------------------------        // storeDurably(),沒有觸發器指向任務的時候，將任務儲存在隊列中，然後可以通過手動進行出發        jobDetail = JobBuilder.newJob(SimpleJob.class).withIdentity("job8", "group1").storeDurably().build();        // 任務立即執行        scheduler.addJob(jobDetail, true);        System.out.println("手動觸發   triggering job8...");        scheduler.triggerJob(JobKey.jobKey("job8", "group1"));        // ------------------------------------------Job8 end-------------------------------------------------        scheduler.start();        try {            Thread.sleep(60000L);        } catch (InterruptedException e) {        }        // 對Job7進行重新安排        System.out.println("------- Rescheduling... --------------------");        simpleTrigger = TriggerBuilder.newTrigger().withIdentity("trigger7", "group1").startAt(startDate).                withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInMinutes(5).withRepeatCount(20)).build();        date = scheduler.rescheduleJob(simpleTrigger.getKey(), simpleTrigger);        System.out.println("job7 rescheduled to run at: " + date);        System.out.println("------- Waiting five minutes... ------------");        try {            Thread.sleep(60000L);        } catch (Exception ex) {        }        scheduler.shutdown(true);        SchedulerMetaData metaData = scheduler.getMetaData();        System.out.println("Executed " + metaData.getNumberOfJobsExecuted() + " jobs.");    }    public static void main(String[] args) throws SchedulerException {        SimpleTriggerExample simpleTriggerExample = new SimpleTriggerExample();        simpleTriggerExample.run();    }}

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