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 {

		// 5
		System.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