Quartz 两种实现方式

Example to run multiple jobs in Quartz

By mkyong | July 30, 2012 | Updated : August 29, 2012

In this example, we show you how to declare multiple Quartz jobs via Quartz APIs, Quartz XML and Spring. In Quartz scheduler framework, each job will be attached to an unique trigger, and run it by scheduler.

P.S In Quartz, one trigger for multiple jobs is not possible. (Correct me if this is wrong.)

1. Quartz APIs

Create 3 Quartz’s jobs, JobA, JobB and JobC.

package com.mkyong.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");
	}

}

package com.mkyong.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.mkyong.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");
	}

}

Use Quartz APIs to declare above 3 Jobs, assigned to 3 particular triggers and schedule it.

package com.mkyong.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);
    
    }
}

Output

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

2. Quartz XML Example

The equivalent version in XML file. Make sure “quartz.properties” and “quartz-config.xml” are located at project classpath.

File – quartz.properties

org.quartz.scheduler.instanceName = MyScheduler
org.quartz.threadPool.threadCount = 3
org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore
org.quartz.plugin.jobInitializer.class =org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin 
org.quartz.plugin.jobInitializer.fileNames = quartz-config.xml 
org.quartz.plugin.jobInitializer.failOnFileNotFound = true

File – quartz-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<job-scheduling-data
	xmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData 
        http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd"
	version="1.8">

	<schedule>
		<job>
			<name>JobA</name>
			<group>GroupDummy</group>
			<description>This is Job A</description>
			<job-class>com.mkyong.quartz.JobA</job-class>
		</job>

		<trigger>
			<cron>
				<name>dummyTriggerNameA</name>
				<job-name>JobA</job-name>
				<job-group>GroupDummy</job-group>
				<!-- It will run every 5 seconds -->
				<cron-expression>0/5 * * * * ?</cron-expression>
			</cron>
		</trigger>
	</schedule>
	
	<schedule>
		<job>
			<name>JobB</name>
			<group>GroupDummy</group>
			<description>This is Job B</description>
			<job-class>com.mkyong.quartz.JobB</job-class>
		</job>

		<trigger>
			<cron>
				<name>dummyTriggerNameB</name>
				<job-name>JobB</job-name>
				<job-group>GroupDummy</job-group>
				<!-- It will run every 5 seconds -->
				<cron-expression>0/5 * * * * ?</cron-expression>
			</cron>
		</trigger>
	</schedule>
</job-scheduling-data>

File : web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app ...>
<listener>
    <listener-class>
       org.quartz.ee.servlet.QuartzInitializerListener
   </listener-class>
</listener>
</web-app>

3. Spring Example

The equivalent version in Spring.

package com.mkyong.job;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class JobA extends QuartzJobBean {

	@Override
	protected void executeInternal(JobExecutionContext arg0)
		throws JobExecutionException {
		System.out.println("Job A is runing");
	}

}

package com.mkyong.job;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class JobB extends QuartzJobBean {

	@Override
	protected void executeInternal(JobExecutionContext arg0)
		throws JobExecutionException {
		System.out.println("Job B is runing");
		
	}

} 

 
package com.mkyong.job;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class JobC extends QuartzJobBean {

	@Override
	protected void executeInternal(JobExecutionContext arg0)
		throws JobExecutionException {
		System.out.println("Job C is runing");
		
	}

}

File : Spring-Quartz.xml – Declares jobs and triggers in Spring XML bean configuration file.

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

	<bean id="jobA" class="com.mkyong.job.JobA" />
	<bean id="jobB" class="com.mkyong.job.JobB" />
	<bean id="jobC" class="com.mkyong.job.JobC" />

	<!-- Quartz Job -->
	<bean name="JobA" class="org.springframework.scheduling.quartz.JobDetailBean">
		<property name="jobClass" value="com.mkyong.job.JobA" />
	</bean>

	<bean name="JobB" class="org.springframework.scheduling.quartz.JobDetailBean">
		<property name="jobClass" value="com.mkyong.job.JobB" />
	</bean>
	
	<bean name="JobC" class="org.springframework.scheduling.quartz.JobDetailBean">
		<property name="jobClass" value="com.mkyong.job.JobC" />
	</bean>
	
	<!-- Cron Trigger, run every 5 seconds -->
	<bean id="cronTriggerJobA" 
                class="org.springframework.scheduling.quartz.CronTriggerBean">
		<property name="jobDetail" ref="JobA" />
		<property name="cronExpression" value="0/5 * * * * ?" />
	</bean>
	
	<bean id="cronTriggerJobB" 
                class="org.springframework.scheduling.quartz.CronTriggerBean">
		<property name="jobDetail" ref="JobB" />
		<property name="cronExpression" value="0/5 * * * * ?" />
	</bean>
	
	<bean id="cronTriggerJobC" 
                class="org.springframework.scheduling.quartz.CronTriggerBean">
		<property name="jobDetail" ref="JobC" />
		<property name="cronExpression" value="0/5 * * * * ?" />
	</bean>

	<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
		<property name="triggers">
			<list>
				<ref bean="cronTriggerJobA" />
				<ref bean="cronTriggerJobB" />
				<ref bean="cronTriggerJobC" />
			</list>
		</property>
	</bean>

</beans>

Run it

package com.mkyong.common;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
	public static void main(String[] args) throws Exception {
		new ClassPathXmlApplicationContext("Spring-Quartz.xml");

	}
}

Output.

INFO: Starting beans in phase 2147483647
Jul 30, 2012 10:38:13 PM org.springframework.scheduling.quartz.SchedulerFactoryBean startScheduler
INFO: Starting Quartz Scheduler now
Job A is runing
Job B is runing
Job C is runing
Job A is runing
Job B is runing
Job C is runing

资源下载：http://download.youkuaiyun.com/detail/zljjava/8995755