Java定时任务调度工具Timer Quartz
-----------------------------------Timer


PS:Timer是 jdk中的;Quartz是第三方的





PS:也即是返回执行任务时候的时间









---------------------------------------------------一个综合的例子


import java.text.SimpleDateFormat;
import java.util.TimerTask; public class DancingRobot extends TimerTask{ @Override
public void run() {
// 获取最近一次任务执行的时间,将其格式化
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("最近执行任务的时间:"+sdf.format(scheduledExecutionTime()));//获取最近一次任务执行的时间,将其格式化
System.out.println("开心的跳舞");
} }
import java.util.Timer;
import java.util.TimerTask; public class WaterRobot extends TimerTask{
private Timer timer; public WaterRobot(Timer timer) {
this.timer = timer;
}
//最大容量为5L
private Integer bucketCapacity = 0;
@Override
public void run() {
// 灌水直到桶水满为止
if(bucketCapacity<5){
System.out.println("机器人加1L水");
bucketCapacity++;
}else{
System.out.println("返回取消的任务数 before:"+timer.purge());
cancel();//停止当前的机器人的执行
System.out.println("机器人停止加水");
System.out.println("返回取消的任务数 after:"+timer.purge());
System.out.println("当前水容量:"+bucketCapacity+"L");
try {
Thread.sleep(2000);
} catch (Exception e) {
e.printStackTrace();
}
timer.cancel();//停止所有的机器人操作
} } }
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Timer; public class Main { public static void main(String[] args) { Timer timer = new Timer();
//获取当前时间
Calendar calendar = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间:"+sdf.format(calendar.getTime())); DancingRobot dr = new DancingRobot();
WaterRobot wr = new WaterRobot(timer); timer.schedule(dr, calendar.getTime(), 2000);
timer.scheduleAtFixedRate(wr, calendar.getTime(), 1000);
} /* 当前时间:2018-06-08 18:11:24
最近执行任务的时间:2018-06-08 18:11:25
开心的跳舞
机器人加1L水
机器人加1L水
机器人加1L水
最近执行任务的时间:2018-06-08 18:11:27
开心的跳舞
机器人加1L水
机器人加1L水
最近执行任务的时间:2018-06-08 18:11:29
开心的跳舞
返回取消的任务数 before:0
机器人停止加水
返回取消的任务数 after:1
当前水容量:5L*/ }



------------------------------------Quartz










-------------------------------------Hello world-----------------------
package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
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 arg0) throws JobExecutionException {
//打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前execution时间为:"+sdf.format(date));
// 编写具体的业务逻辑
System.out.println("hello world");
} }
package com.beet.test.HelloQuartz; 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.SimpleScheduleBuilder;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").startNow().withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start(); //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date)); scheduler.scheduleJob(jobDetail, trigger);
} }
当前时间为:2018-06-14 09:57:36
当前execution时间为:2018-06-14 09:57:36
hello world
当前execution时间为:2018-06-14 09:57:38
hello world
当前execution时间为:2018-06-14 09:57:40
hello world
当前execution时间为:2018-06-14 09:57:42
hello world
当前execution时间为:2018-06-14 09:57:44





public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName());
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").startNow().withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start();
//打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date));
scheduler.scheduleJob(jobDetail, trigger);
/*jobDetail的名字:myJob
jobDetail的group:group1
jobDetail的jobclass:com.beet.test.HelloQuartz.HelloJob
当前时间为:2018-06-14 10:10:25
当前execution时间为:2018-06-14 10:10:26
hello world*/
}
}




---------------------------------------------------------使用JobDataMap传参数
package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
import java.util.Date; import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;
import org.quartz.TriggerKey; public class HelloJob implements Job{ public void execute(JobExecutionContext context) throws JobExecutionException {
//打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // 编写具体的业务逻辑
//System.out.println("hello world");
JobKey key = context.getJobDetail().getKey();
TriggerKey trKey = context.getTrigger().getKey();
JobDataMap dataMap = context.getJobDetail().getJobDataMap();
JobDataMap tDataMap = context.getTrigger().getJobDataMap(); //从中获取Map
//String JobMsg = dataMap.getString("message");
// Float jobFloatValue = dataMap.getFloat("FloatJobValue");
String triggerMsg = tDataMap.getString("message");
Float triggerDoubleValue = tDataMap.getFloat("DoubleTriggerValue");
System.out.println("当前execution时间为:"+sdf.format(date));
System.out.println("我的job name和group是:"+key.getName()+":"+key.getGroup()); System.out.println("我的trigger name和group是:"+trKey.getName()+":"+trKey.getGroup()); //System.out.println("job message是:"+JobMsg);
//System.out.println("FloatJobVAlue是:"+jobFloatValue);
System.out.println("trigger message:"+triggerMsg);
System.out.println("FloatJobVAlue是:"+triggerDoubleValue);
} }
package com.beet.test.HelloQuartz; 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.SimpleScheduleBuilder;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").usingJobData("message", "hello myJob1").usingJobData("FloatJobValue", 3.14f).build();
System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName()); //创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").usingJobData("message", "hello myTrigger").usingJobData("DoubleTriggerValue", 2.0D).startNow().withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start(); //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date)); scheduler.scheduleJob(jobDetail, trigger); /*jobDetail的名字:myJob
jobDetail的group:group1
jobDetail的jobclass:com.beet.test.HelloQuartz.HelloJob 当前时间为:2018-06-14 10:10:25
当前execution时间为:2018-06-14 10:10:26
hello world*/
} }





package com.beet.test.HelloQuartz; 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.SimpleScheduleBuilder;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
/* System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName()); */ //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date));
date.setTime(date.getTime()+3000);//开始3s后执行 Date endDate = new Date();
endDate.setTime(endDate.getTime()+6000);
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").startAt(date).endAt(endDate).withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start(); scheduler.scheduleJob(jobDetail, trigger); /*jobDetail的名字:myJob
jobDetail的group:group1
jobDetail的jobclass:com.beet.test.HelloQuartz.HelloJob 当前时间为:2018-06-14 10:10:25
当前execution时间为:2018-06-14 10:10:26
hello world*/
} }
package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
import java.util.Date; import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;
import org.quartz.Trigger;
import org.quartz.TriggerKey; public class HelloJob implements Job{ public void execute(JobExecutionContext context) throws JobExecutionException {
//打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前execution时间为:"+sdf.format(date));
// 编写具体的业务逻辑
// System.out.println("hello world"); Trigger trigger = context.getTrigger();
System.out.println("start time is "+trigger.getStartTime());
System.out.println("end time is "+trigger.getEndTime()); } }
当前时间为:2018-06-14 14:14:32
当前execution时间为:2018-06-14 14:14:35
start time is Thu Jun 14 14:14:35 CST 2018
end time is Thu Jun 14 14:14:38 CST 2018
当前execution时间为:2018-06-14 14:14:37
start time is Thu Jun 14 14:14:35 CST 2018
end time is Thu Jun 14 14:14:38 CST 2018


package com.beet.test.HelloQuartz; 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.SimpleScheduleBuilder;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
/* System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName()); */ //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date));
date.setTime(date.getTime()+3000);//开始3s后执行 Date endDate = new Date();
endDate.setTime(endDate.getTime()+6000);
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远 被endDate 覆盖掉了执行计划
SimpleTrigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").startAt(date).endAt(endDate).withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(2).repeatForever()).build();
//创建schedule实例 定时 定频率
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start(); scheduler.scheduleJob(jobDetail, trigger); /*jobDetail的名字:myJob
jobDetail的group:group1
jobDetail的jobclass:com.beet.test.HelloQuartz.HelloJob 当前时间为:2018-06-14 10:10:25
当前execution时间为:2018-06-14 10:10:26
hello world*/
} }



PS:
,表示或的关系
-,至 5-7 五到七
*,每秒钟
/, 每分钟没小时 0/5 没隔5分钟(..)出发一次
?,不关心
#,代表第.. 6#3 每月第三周的周五(6代表周五)
L,代表最后



package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
import java.util.Date; import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SimpleScheduleBuilder;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
/* System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName()); */ //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date));
date.setTime(date.getTime()+3000);//开始3s后执行 Date endDate = new Date();
endDate.setTime(endDate.getTime()+6000);
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
CronTrigger trigger = (CronTrigger) TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").withSchedule(CronScheduleBuilder.cronSchedule("* * * * * ? *")).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start();
scheduler.scheduleJob(jobDetail, trigger); } }
package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
import java.util.Date; import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;
import org.quartz.Trigger;
import org.quartz.TriggerKey; public class HelloJob implements Job{ public void execute(JobExecutionContext context) throws JobExecutionException {
//打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前execution时间为:"+sdf.format(date));
// 编写具体的业务逻辑
System.out.println("hello world"); /*Trigger trigger = context.getTrigger();
System.out.println("start time is "+trigger.getStartTime());
System.out.println("end time is "+trigger.getEndTime()); */ } }



PS: 这两种方式推荐使用std的方式。



package com.beet.test.HelloQuartz; import java.text.SimpleDateFormat;
import java.util.Date; import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SimpleScheduleBuilder;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory; public class HelloScheduler {
public static void main(String[] args) throws SchedulerException, InterruptedException {
//创建一个jobdetail实例,将该实例与hellojob class绑定
JobDetail jobDetail = JobBuilder.newJob(HelloJob.class).withIdentity("myJob", "group1").build();
/* System.out.println("jobDetail的名字:"+jobDetail.getKey().getName());
System.out.println("jobDetail的group:"+jobDetail.getKey().getGroup());
System.out.println("jobDetail的jobclass:"+jobDetail.getJobClass().getName()); */ //打印当前的执行时间
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间为:"+sdf.format(date));
date.setTime(date.getTime()+3000);//开始3s后执行 Date endDate = new Date();
endDate.setTime(endDate.getTime()+6000);
//创建一个Trigger的实例,定义改job立即执行,并且每隔2秒钟重复一次,直到永远
CronTrigger trigger = (CronTrigger) TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").withSchedule(CronScheduleBuilder.cronSchedule("* * * * * ? *")).build();
//创建schedule实例
StdSchedulerFactory sfact = new StdSchedulerFactory();
Scheduler scheduler = sfact.getScheduler();
scheduler.start();
Date scheduleDate = scheduler.scheduleJob(jobDetail, trigger);
System.out.println("开始执行时间为:"+sdf.format(scheduleDate));
//scheudle执行2s挂起
Thread.sleep(2000);
scheduler.standby();//挂起
//挂起3s重新启动
Thread.sleep(3000);
scheduler.start();
} }
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