Java 定时任务quartz job

第二步：创建要被定执行的任务类

　　这一步也很简单，只需要创建一个实现了org.quartz.Job接口的类，并实现这个接口的唯一一个方法execute(JobExecutionContext arg0) throws JobExecutionException即可。如：

package com.fync.quartz;

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

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
/**
 * 创建要被定执行的任务类
 * @author long
 *
 */
public class MyJob implements Job{

    public void execute(JobExecutionContext context)
            throws JobExecutionException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        System.out.println(sdf.format(new Date()));
    }

}

第三步：创建任务调度，并执行

package com.fync.quartz;

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;

/**
 * 创建任务调度，并执行
 * @author long    
 *
 */
public class MainScheduler {
    
    //创建调度器
    public static Scheduler getScheduler() throws SchedulerException{
        SchedulerFactory schedulerFactory = new StdSchedulerFactory();
        return schedulerFactory.getScheduler();
    }
    
    
    public static void schedulerJob() throws SchedulerException{
        //创建任务
        JobDetail jobDetail = JobBuilder.newJob(MyJob.class).withIdentity("job1", "group1").build();
        //创建触发器 每3秒钟执行一次
        Trigger trigger = TriggerBuilder.newTrigger().withIdentity("trigger1", "group3")
                            .withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(3).repeatForever())
                            .build();
        Scheduler scheduler = getScheduler();
        //将任务及其触发器放入调度器
        scheduler.scheduleJob(jobDetail, trigger);
        //调度器开始调度任务
        scheduler.start();
        
    }
    
    public static void main(String[] args) throws SchedulerException {
        MainScheduler mainScheduler = new MainScheduler();
        mainScheduler.schedulerJob();
    }

}