Quartz执行多作业 - Quartz教程

在这个例子中，我们将介绍如何通过Quartz API 多个作业。在Quartz调度框架中，每个作业将被连接到一个唯一的触发，并且由调度器运行它。

P.S：在 Quartz 中，一个触发器触发多个作业是不可以的。

1. Quartz APIs

创建3个作业，JobA，JobB和JobC。

package com.yiibai.quartz;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobA implements Job {

    @Override
    public void execute(JobExecutionContext context)
        throws JobExecutionException {
        System.out.println("Job A is runing //every 5 seconds ");
    }

}

package com.yiibai.quartz;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobB implements Job {

    @Override
    public void execute(JobExecutionContext context)
        throws JobExecutionException {
        System.out.println("Job B is runing");
    }

}

package com.yiibai.quartz;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class JobC implements Job {

    @Override
    public void execute(JobExecutionContext context)
        throws JobExecutionException {
        System.out.println("Job C is runing");
    }

}

使用QuartzAPI声明上述3个作业，分配它们到特定触发器并调度它。

package com.yiibai.quartz;

import org.quartz.CronScheduleBuilder;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory;

public class CronTriggerExample {
    public static void main( String[] args ) throws Exception
    {

    JobKey jobKeyA = new JobKey("jobA", "group1");
        JobDetail jobA = JobBuilder.newJob(JobA.class)
        .withIdentity(jobKeyA).build();

        JobKey jobKeyB = new JobKey("jobB", "group1");
        JobDetail jobB = JobBuilder.newJob(JobB.class)
        .withIdentity(jobKeyB).build();

        JobKey jobKeyC = new JobKey("jobC", "group1");
        JobDetail jobC = JobBuilder.newJob(JobC.class)
        .withIdentity(jobKeyC).build();

        Trigger trigger1 = TriggerBuilder
        .newTrigger()
        .withIdentity("dummyTriggerName1", "group1")
        .withSchedule(
            CronScheduleBuilder.cronSchedule("0/5 * * * * ?"))
        .build();

        Trigger trigger2 = TriggerBuilder
        .newTrigger()
        .withIdentity("dummyTriggerName2", "group1")
        .withSchedule(
            CronScheduleBuilder.cronSchedule("0/5 * * * * ?"))
        .build();

        Trigger trigger3 = TriggerBuilder
        .newTrigger()
        .withIdentity("dummyTriggerName3", "group1")
        .withSchedule(
            CronScheduleBuilder.cronSchedule("0/5 * * * * ?"))
        .build();

        Scheduler scheduler = new StdSchedulerFactory().getScheduler();

        scheduler.start();
        scheduler.scheduleJob(jobA, trigger1);
        scheduler.scheduleJob(jobB, trigger2);
        scheduler.scheduleJob(jobC, trigger3);

    }
}

输出结果如上：

Job A is runing //every 5 seconds
Job B is runing
Job C is runing
Job A is runing //every 5 seconds
Job B is runing
Job C is runing

代码下载：http://pan.baidu.com/s/1qW4tkAw