Java调度框架Quartz简单示例

Quartz的大名如雷贯耳，这里就不赘述，而且本文也不作为深入探讨，只是看完Quartz的官方文档后，下个简单示例，至少证明曾经花了点时间学习过，以备不时之需。

Quartz使用了SLF4J，所以至少你也知道如何配置日志，开发过程中最好把Quartz的日志打印出来，方便排查问题。先不详解直接上一个Demo.

项目结构如图：

log4j.properties

#log4j.logger.org.quartz=OFF

log4j.logger.org.quartz=INFO,Console

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.layout=org.apache.log4j.PatternLayout

log4j.appender.Console.layout.ConversionPattern=%d{mm:ss,SSS} %M %m%n

HelloJob.java

package net.oseye;

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

public class HelloJob implements Job{

	public void execute(JobExecutionContext arg0) throws JobExecutionException {

		System.out.println(arg0.getJobDetail().getKey().getName());

	}

}

App.java

package net.oseye;

import org.quartz.JobBuilder;

import org.quartz.JobDetail;

import org.quartz.Scheduler;

import org.quartz.SchedulerException;

import org.quartz.SchedulerFactory;

import org.quartz.SimpleScheduleBuilder;

import org.quartz.Trigger;

import org.quartz.TriggerBuilder;

import org.quartz.impl.StdSchedulerFactory;

public class App {

	public static void main(String[] args) {

		JobDetail job = JobBuilder.newJob(HelloJob.class)

				.withIdentity("job1", "group1")

				.build();

		SchedulerFactory sf = new StdSchedulerFactory();

		try {

			Scheduler sched = sf.getScheduler();

			Trigger trigger = TriggerBuilder.newTrigger()

					.withIdentity("trigger1", "group1")

					.startNow()

					.withSchedule(SimpleScheduleBuilder.simpleSchedule()

							.withIntervalInSeconds(10)

							.repeatForever())

					.build();

			sched.scheduleJob(job, trigger);

			sched.start();

		} catch (SchedulerException e) {

			e.printStackTrace();

		}

	}

}

执行后输出

可以看出默认使用10个线程，使用的JobStor是RAM。