第一个Quartz程序

     <dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>2.2.1</version>
      </dependency>
      <dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz-jobs</artifactId>
        <version>2.2.1</version>
      </dependency>  

package quartz;

import java.text.SimpleDateFormat;
import java.util.Date;

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

public class JobClass implements Job {

    public void execute(JobExecutionContext arg0) throws JobExecutionException {
        Date date=new Date();
        SimpleDateFormat sf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println("当前时间为："+sf.format(date));
        // 编写业务逻辑
        System.out.println("hello Quartz");
    }

}

package quartz;

import java.text.SimpleDateFormat;
import java.util.Date;

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 SchedulerClass {
    
    public static void main(String[] args) throws SchedulerException {
        // 创建一个JobDetail实例 将该实例与JobClass绑定，JobDetail是由Builder模式来创建的，JobDetail是来绑定job的。
        // withIdentity 创建唯一的标识
        JobDetail jobDetail = JobBuilder.newJob(JobClass.class).withIdentity("job").build();
        
        // 创建一个Tigger实例，定义 job立即执行，并每隔一段时间重复执行，每隔5秒中执行一次
        Trigger trigger = TriggerBuilder.newTrigger().withIdentity("trigger").startNow()
                .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(5).repeatForever()).build();
        
        // 创建一个Scheduler实例， Scheduler是由工厂模式来创建的 so
        SchedulerFactory factory = new StdSchedulerFactory();
        Scheduler scheduler = factory.getScheduler();
        scheduler.start();

        Date date = new Date();
        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println("当前时间为：" + sf.format(date));
        //调度器调用任务和触发器，scheduler将job，trigger绑定在一起。
        scheduler.scheduleJob(jobDetail, trigger);
        
        
        

    }
}