Quartz的Demo

下面我们来看看两个小demo实现定时任务的执行：

一、

package test2;

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

public class SchedulerTest {
	public static void main(String[] args) {
		// 通过schedulerFactory获取一个调度器
		SchedulerFactory schedulerfactory = new StdSchedulerFactory();
		Scheduler scheduler = null;
		try {
			// 通过schedulerFactory获取一个调度器
			scheduler = schedulerfactory.getScheduler();
			// 创建jobDetail实例，绑定Job实现类
			// 指明job的名称，所在组的名称，以及绑定job类
			JobDetail job = JobBuilder.newJob(MyJob.class)
					.withIdentity("job1", "jgroup1").build();
			/* 定义调度触发规则*/

			// 使用simpleTrigger规则
			// Trigger
			// trigger=TriggerBuilder.newTrigger().withIdentity("simpleTrigger",
			// "triggerGroup")
			// .withSchedule(SimpleScheduleBuilder.repeatSecondlyForever(1).withRepeatCount(8))
			// .startNow().build();
			// 使用cornTrigger规则 每两秒钟执行一次
			Trigger trigger = TriggerBuilder
					.newTrigger()
					.withIdentity("simpleTrigger", "triggerGroup")
					.withSchedule(
							CronScheduleBuilder.cronSchedule("0/2 * * * * ?"))
					.startNow().build();
			// 把作业和触发器注册到任务调度中
			scheduler.scheduleJob(job, trigger);
			// 启动调度
			scheduler.start();
		} catch (Exception e) {
			e.printStackTrace();
		}

	}
}

package test2;
import java.util.Date;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
public class MyJob implements Job {

	@Override
	//把要执行的操作，写在execute方法中
	public void execute(JobExecutionContext arg0) throws JobExecutionException {
		System.out.println("测试Quartz"+new Date());
	}

}

二、

package test2;

import java.text.ParseException;
import org.quartz.*;
import org.quartz.impl.JobDetailImpl;
import org.quartz.impl.StdSchedulerFactory;

public class TestQuartz {
	public static void main(String[] args) throws SchedulerException,
			ParseException {
		SchedulerFactory schedulerFactory = new StdSchedulerFactory();
		Scheduler scheduler = schedulerFactory.getScheduler();

		JobDetail jobDetail = JobBuilder.newJob().ofType(HelloJob.class)
				.usingJobData("Test1", "Quartz")
				.withIdentity("Test1", "Group1").build();// 通过JobBuilder构建JobDetailImpl
															// 实例,也可以直接new
															// JobDetailImpl

		Trigger trigger = TriggerBuilder
				.newTrigger()
				.withSchedule(CronScheduleBuilder.cronSchedule("0/3 * * * * ?"))
				.forJob("Test1", "Group1") // Trigger找到对应的名称为Test1组为Group1的Job,如果不存在则会在执行scheduler.scheduleJob(jobDetail,trigger);报错
				.build();// 通过TriggerBuilder构建CronTriggerImpl实例,也可以直接new
							// CronTriggerImpl

		scheduler.scheduleJob(jobDetail, trigger);// 任务每3秒触发一次

		scheduler.start();
	}
}

package test2;

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

public class HelloJob implements Job {
	@Override
	public void execute(JobExecutionContext arg0) throws JobExecutionException {
		// TODO Auto-generated method stub
		   JobDataMap jobDataMap = arg0.getJobDetail().getJobDataMap();
	        String a = (String)jobDataMap.get("Test1");
	        System.out.println("Hello " + a +" hello quartz……");
	}
}

ok 两个小demo 结束……

 可以看看这篇文章：http://blog.youkuaiyun.com/pengpegv5yaya/article/details/37595889/

具体详解原理：http://lavasoft.blog.51cto.com/62575/181907/?from=singlemessage&isappinstalled=0