quartz定时任务

quartz定时任务，之前在网上找了一堆，几乎全是和spring集成的，配置各种文件真麻烦，现在多简洁，如下：

package com.quartz;import java.util.Date;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;public class HelloJob implements Job {public void execute(JobExecutionContext context)throws JobExecutionException {// 5System.out.println(new Date() + " : Hello Quartz!");}}

package com.quartz;import org.quartz.CronScheduleBuilder;import org.quartz.JobBuilder;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.SimpleScheduleBuilder;import org.quartz.Trigger;import org.quartz.TriggerBuilder;import org.quartz.impl.StdSchedulerFactory;/** *  * @author  * */public class QuartzTest {public static void main(String[] args) throws SchedulerException {//1JobDetail job = JobBuilder.newJob(HelloJob.class).withIdentity("JobName", "group1").build();         //5秒执行一次/*Trigger trigger = TriggerBuilder.newTrigger().withIdentity("TriggerName", "group1").withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(5).repeatForever()).build();*///2,5秒执行一次,上面的生成trigger的两种方法都行Trigger trigger = TriggerBuilder.newTrigger().withIdentity("TriggerName", "group1").withSchedule(CronScheduleBuilder.cronSchedule("0/5 * * * * ?")).build();//3 schedule itScheduler scheduler = new StdSchedulerFactory().getScheduler();scheduler.start();//4scheduler.scheduleJob(job, trigger);}}

org.quartz.scheduler.instanceName = MySchedulerorg.quartz.threadPool.threadCount = 3 org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore

输出：

log4j:WARN No appenders could be found for logger (org.quartz.impl.StdSchedulerFactory).log4j:WARN Please initialize the log4j system properly.log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.Sat May 20 17:17:50 CST 2017 : Hello Quartz!Sat May 20 17:17:55 CST 2017 : Hello Quartz!Sat May 20 17:18:00 CST 2017 : Hello Quartz!

执行顺序是1 2 3 4 5 5 5 5 5 5 .......

参考：

http://www.yiibai.com/quartz/quartz-helloworld.html