quartz一分钟教程 java任务调度

最新推荐文章于 2025-04-10 11:11:01 发布

原创最新推荐文章于 2025-04-10 11:11:01 发布 · 4.7k 阅读

2 ·

CC 4.0 BY-SA版权

文章标签：

#任务调度 #quartz #java #exception #class #任务

javaEE 同时被 2 个专栏收录

22 篇文章

订阅专栏

javaSE

21 篇文章

订阅专栏

本文介绍 Quartz 任务调度器的使用方法，包括下载 JAR 包、创建项目、定义任务及触发器，并通过示例代码展示如何设置定时任务。

quartz是干啥的？任务调度用的

任务调度是干啥的？就是在预定的时间做预定的事

1.在quart网站下最新的JAR包

2.建个项目，把quartz的JAR包加入到项目

3.新建一个任务

public class MyJob implements org.quartz.Job { @Override public void execute(JobExecutionContext arg0) throws JobExecutionException { System.out.println("我被调用了"); } }

4.开启任务：

public class StartSchedule { public static void main(String[] args) throws Exception { SchedulerFactory sf = new StdSchedulerFactory(); Scheduler sched = sf.getScheduler(); JobDetail job = new JobDetail("job1", "group1", MyJob.class); CronTrigger t = new CronTrigger("trigger1", "group1", "job1", "group1", "0/2 * * * * ?"); sched.scheduleJob(job, t); sched.start(); Thread.sleep(500000); sched.shutdown(true); } }

5.运行StartSchedule即可

其中：

"0/2 * * * * ?" 是cronExpression表达式

一共有7组数据组成，位与位之间用空间分隔

分别代表 “秒分时日月周年” 其中年是可以省略的，所以在例子中用了6组

官方的例子：

Examples

Here are some full examples:

Expression	Meaning
`0 0 12 * * ?`	Fire at 12pm (noon) every day
`0 15 10 ? * *`	Fire at 10:15am every day
`0 15 10 * * ?`	Fire at 10:15am every day
`0 15 10 * * ? *`	Fire at 10:15am every day
`0 15 10 * * ? 2005`	Fire at 10:15am every day during the year 2005
`0 * 14 * * ?`	Fire every minute starting at 2pm and ending at 2:59pm, every day
`0 0/5 14 * * ?`	Fire every 5 minutes starting at 2pm and ending at 2:55pm, every day
`0 0/5 14,18 * * ?`	Fire every 5 minutes starting at 2pm and ending at 2:55pm, AND fire every 5 minutes starting at 6pm and ending at 6:55pm, every day
`0 0-5 14 * * ?`	Fire every minute starting at 2pm and ending at 2:05pm, every day
`0 10,44 14 ? 3 WED`	Fire at 2:10pm and at 2:44pm every Wednesday in the month of March.
`0 15 10 ? * MON-FRI`	Fire at 10:15am every Monday, Tuesday, Wednesday, Thursday and Friday
`0 15 10 15 * ?`	Fire at 10:15am on the 15th day of every month
`0 15 10 L * ?`	Fire at 10:15am on the last day of every month
`0 15 10 ? * 6L`	Fire at 10:15am on the last Friday of every month
`0 15 10 ? * 6L`	Fire at 10:15am on the last Friday of every month
`0 15 10 ? * 6L 2002-2005`	Fire at 10:15am on every last friday of every month during the years 2002, 2003, 2004 and 2005
`0 15 10 ? * 6#3`	Fire at 10:15am on the third Friday of every month
`0 0 12 1/5 * ?`	Fire at 12pm (noon) every 5 days every month, starting on the first day of the month.
`0 11 11 11 11 ?`	Fire every November 11th at 11:11am.