Quartz執行多作業


在這個例子中,我們將介紹如何通過Quartz API 多個作業。在Quartz調度框架中,每個作業將被連接到一個唯一的觸發,並且由調度器運行它。

P.S:在 Quartz 中,一個觸發器觸發多個作業是不可以的。 

1. Quartz APIs

創建3個作業,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聲明上述3個作業,分配它們到特定觸發器並調度它。

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);
 
    }
}

輸出結果如上:

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
代碼下載: http://pan.baidu.com/s/1qW4tkAw