Quartz使用-入门使用(java定时任务实现)
//测试main函数
//QuartzTest.java
package quartzPackage;
import java.text.SimpleDateFormat;
import java.util.Date;
public class QuartzTest {
/** *//**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
SimpleDateFormat DateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
Date d = new Date();
String returnstr = DateFormat.format(d);
TestJob job = new TestJob();
String job_name ="11";
try {
System.out.println(returnstr+ "【系统启动】");
QuartzManager.addJob(job_name,job,"0/2 * * * * ?"); //每2秒钟执行一次
// Thread.sleep(10000);
// System.out.println("【修改时间】");
// QuartzManager.modifyJobTime(job_name,"0/10 * * * * ?");
// Thread.sleep(20000);
// System.out.println("【移除定时】");
// QuartzManager.removeJob(job_name);
// Thread.sleep(10000);
//
// System.out.println("/n【添加定时任务】");
// QuartzManager.addJob(job_name,job,"0/5 * * * * ?");
} catch (Exception e) {
e.printStackTrace();
}
}
}
//简单的任务管理类
//QuartzManager.java
package quartzPackage;
import java.text.ParseException;
import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;
/** *//**
* @Title:Quartz管理类
*
* @Description:
*
* @Copyright:
* @author zz 2008-10-8 14:19:01
* @version 1.00.000
*
*/
public class QuartzManager {
private static SchedulerFactory sf = new StdSchedulerFactory();
private static String JOB_GROUP_NAME = "group1";
private static String TRIGGER_GROUP_NAME = "trigger1";
/** *//**
* 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
* @param jobName 任务名
* @param job 任务
* @param time 时间设置，参考quartz说明文档
* @throws SchedulerException
* @throws ParseException
*/
public static void addJob(String jobName,Job job,String time)
throws SchedulerException, ParseException{
Scheduler sched = sf.getScheduler();
JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, job.getClass());//任务名，任务组，任务执行类
//触发器
CronTrigger trigger =
new CronTrigger(jobName, TRIGGER_GROUP_NAME);//触发器名,触发器组
trigger.setCronExpression(time);//触发器时间设定
sched.scheduleJob(jobDetail,trigger);
//启动
if(!sched.isShutdown())
sched.start();
}
/** *//**
* 添加一个定时任务
* @param jobName 任务名
* @param jobGroupName 任务组名
* @param triggerName 触发器名
* @param triggerGroupName 触发器组名
* @param job 任务
* @param time 时间设置，参考quartz说明文档
* @throws SchedulerException
* @throws ParseException
*/
public static void addJob(String jobName,String jobGroupName,
String triggerName,String triggerGroupName,
Job job,String time)
throws SchedulerException, ParseException{
Scheduler sched = sf.getScheduler();
JobDetail jobDetail = new JobDetail(jobName, jobGroupName, job.getClass());//任务名，任务组，任务执行类
//触发器
CronTrigger trigger =
new CronTrigger(triggerName, triggerGroupName);//触发器名,触发器组
trigger.setCronExpression(time);//触发器时间设定
sched.scheduleJob(jobDetail,trigger);
if(!sched.isShutdown())
sched.start();
}
/** *//**
* 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
* @param jobName
* @param time
* @throws SchedulerException
* @throws ParseException
*/
public static void modifyJobTime(String jobName,String time)
throws SchedulerException, ParseException{
Scheduler sched = sf.getScheduler();
Trigger trigger = sched.getTrigger(jobName,TRIGGER_GROUP_NAME);
if(trigger != null){
CronTrigger ct = (CronTrigger)trigger;
ct.setCronExpression(time);
sched.resumeTrigger(jobName,TRIGGER_GROUP_NAME);
}
}
/** *//**
* 修改一个任务的触发时间
* @param triggerName
* @param triggerGroupName
* @param time
* @throws SchedulerException
* @throws ParseException
*/
public static void modifyJobTime(String triggerName,String triggerGroupName,
String time)
throws SchedulerException, ParseException{
Scheduler sched = sf.getScheduler();
Trigger trigger = sched.getTrigger(triggerName,triggerGroupName);
if(trigger != null){
CronTrigger ct = (CronTrigger)trigger;
//修改时间
ct.setCronExpression(time);
//重启触发器
sched.resumeTrigger(triggerName,triggerGroupName);
}
}
/** *//**
* 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
* @param jobName
* @throws SchedulerException
*/
public static void removeJob(String jobName)
throws SchedulerException{
Scheduler sched = sf.getScheduler();
sched.pauseTrigger(jobName,TRIGGER_GROUP_NAME);//停止触发器
sched.unscheduleJob(jobName,TRIGGER_GROUP_NAME);//移除触发器
sched.deleteJob(jobName,JOB_GROUP_NAME);//删除任务
}
/** *//**
* 移除一个任务
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
* @throws SchedulerException
*/
public static void removeJob(String jobName,String jobGroupName,
String triggerName,String triggerGroupName)
throws SchedulerException{
Scheduler sched = sf.getScheduler();
sched.pauseTrigger(triggerName,triggerGroupName);//停止触发器
sched.unscheduleJob(triggerName,triggerGroupName);//移除触发器
sched.deleteJob(jobName,jobGroupName);//删除任务
}
}
//测试工作类
//TestJob.java
package quartzPackage;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
public class TestJob implements Job {
SimpleDateFormat DateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date d = new Date();
String returnstr = DateFormat.format(d);
public void execute(JobExecutionContext arg0) throws JobExecutionException {
// TODO Auto-generated method stub
System.out.println(returnstr+"★★★★★★★★★★★");
}
}