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

 public class QuartzJob implements Job {

     @Override
     public void execute(JobExecutionContext arg0) throws JobExecutionException {
          System.out.println("쿼츠 잡스케줄 실행합니다.");
     }
}

 import java.util.Date;
 import org.quartz.JobDetail;
 import org.quartz.Scheduler;
 import org.quartz.SchedulerException;
 import org.quartz.SimpleTrigger;
 import org.quartz.Trigger;
 import org.quartz.impl.StdSchedulerFactory;

 public class QuartzScheduling {
     public static void main(String[] args) throws SchedulerException{
        

         // 실행할 준비가 된 Scheduler 인스턴스를 리턴한다.

         Scheduler scheduler = new StdSchedulerFactory().getScheduler();   
        

         // 쿼츠에서 Scheduler 는 시작,정지,일시정지를 할수 있다.

         // Scheduler 가 시작되지 않거나 일시 정지상태이면 Trigger 를 발동시키지 않으므로 start()해준다.

         scheduler.start();
  

         // JobDetail 인스턴스를 생성한다.

         JobDetail jobDetail = new JobDetail("QuartzJob",                                // 잡의 이름 ,이 잡을 가리키는 역할

                                                             Scheduler.DEFAULT_GROUP,       // 잡의 그룹이름

                                                             QuartzJob.class);                       // 특정 잡을 구현한 클래스
  
         // 트리거를 생성한다.

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         Trigger trigger = new SimpleTrigger("simpleTrigger",                            //트리거 이름

                                                            Scheduler.DEFAULT_GROUP,        //그룹이름

                                                            new Date(),                                 //트리거의 시작일

                                                            null,                                            // 트리거의 종료일 null 이면 종료일 없음

                                                            SimpleTrigger.REPEAT_INDEFINITELY, //반복할 횟수 ,무제한으로 설정됨

                                                            3000);                                          //인터벌
        //실행 

        scheduler.scheduleJob( jobDetail , trigger );  
       }
}

package com.servlet; 
import org.quartz.Job;
 import org.quartz.JobExecutionContext;
 import org.quartz.JobExecutionException;

 public class QuartzJob implements Job {

     @Override
     public void execute(JobExecutionContext arg0) throws JobExecutionException {
          System.out.println("쿼츠 잡스케줄 실행합니다.");
     }
}

package com.servlet;
import java.util.Date; 

import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import org.quartz.JobDetail;

import org.quartz.Scheduler;

import org.quartz.SchedulerException;

import org.quartz.SimpleTrigger;

import org.quartz.Trigger;

import org.quartz.impl.StdSchedulerFactory;

import com.enrise.framework.log.Log;

public class QurtzSample extends HttpServlet {

       @Override

       public void init(ServletConfig cfg) throws ServletException {

             // TODO Auto-generated method stub

             super.init(cfg);

             try{

          //실행할 준비가 된 Scheduler 인스턴스를 리턴한다.

                    Scheduler scheduler = new StdSchedulerFactory().getScheduler();

          // 쿼츠에서 Scheduler는 시작, 정지, 일시정지할 수 있다.

          // Scheduler가 시작되지 않았거나 일시 정지상태이면 Trigger를

            발동시키지 않으므로 start()해준다.

          scheduler.start();

          //JobDetail인스턴스를 생성한다.

                    JobDetail jobDetail = new JobDetail("QuartzJob",

                                        Scheduler.DEFAULT_GROUP,

                                                                                QuartzJob.class);

          //트리거를 생성한다.

                    Trigger trigger = new SimpleTrigger("simpleTrigger", 
                                        Scheduler.DEFAULT_GROUP,

                                                                                new Date(),

                                                                                null,

                                        SimpleTrigger.REPEAT_INDEFINITELY,
                                        3000);

           //실행

           scheduler.scheduleJob(jobDetail, trigger);

             }catch(SchedulerException se){

                    Log.debug.println(se.toString());

             }

      }

}

  <servlet>      
          <servlet-name>QurtzSample</servlet-name>
          <servlet-class>com.servlet.QurtzSample</servlet-class>
          <init-param>
                <param-name>shutdown-on-unload</param-name>
                <param-value>true</param-value>
          </init-param>
          <load-on-startup>2</load-on-startup>
   </servlet>