Quartz简单示例

1. 新建一个maven工程
2. 导入maven依赖

<dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.2.1</version> </dependency> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz-jobs</artifactId> <version>2.2.1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.21</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.21</version> </dependency>

3. 编写配置文件
   1. quartz.peroperties

org.quartz.scheduler.instanceName = MyScheduler org.quartz.threadPool.threadCount = 3 org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore

2. Log4j.properties

### \u8BBE\u7F6E### log4j.rootLogger = debug,stdout,D,E   ### \u8F93\u51FA\u4FE1\u606F\u5230\u63A7\u5236\u62AC ### log4j.appender.stdout = org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target = System.out log4j.appender.stdout.layout = org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n   ### \u8F93\u51FADEBUG \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ### log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = E://logs/log.log log4j.appender.D.Append = true log4j.appender.D.Threshold = DEBUG log4j.appender.D.layout = org.apache.log4j.PatternLayout log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n   ### \u8F93\u51FAERROR \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ### log4j.appender.E = org.apache.log4j.DailyRollingFileAppender log4j.appender.E.File =E://logs/error.log log4j.appender.E.Append = true log4j.appender.E.Threshold = ERROR log4j.appender.E.layout = org.apache.log4j.PatternLayout log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

4. 编辑HelloJob类

package com.hand.quartz_test;   import org.quartz.Job; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException;   public class HelloJob implements Job{   public void execute(JobExecutionContext arg0) throws JobExecutionException { // TODO Auto-generated method stub System.out.println("Hello Quartz!"); }   }

5. 编辑SimpleTriggerExample类，用来进行测试

package com.hand.quartz_test;   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.impl.StdSchedulerFactory;   public class SimpleTriggerExample {   public static void main(String[] args) throws SchedulerException {   Scheduler scheduler = new StdSchedulerFactory().getScheduler();   scheduler.start();   JobDetail job1 = JobBuilder.newJob(HelloJob.class).withIdentity("job1", "group1").build(); JobDetail job2 = JobBuilder.newJob(HelloJob.class).withIdentity("job2", "group1").build();   Trigger trigger = TriggerBuilder .newTrigger(). withIdentity("trigger1", "group1") .withSchedule( SimpleScheduleBuilder.simpleSchedule() .withIntervalInSeconds(10).repeatForever()) .build();   Trigger trigger2 = TriggerBuilder .newTrigger() .withIdentity("trigger2", "group1") .withSchedule( CronScheduleBuilder.cronSchedule("0/20 * * * * ?")) .build();   scheduler.scheduleJob(job1, trigger); scheduler.scheduleJob(job2, trigger2); //                scheduler.shutdown();        //这里将此方法调用注释之后，定时程序会一直执行     } }

6. 编译运行
7. 注意的几个点
   1. 依赖包一定要导入slf4j-log4j12，不然日志无法正常打印出来
   2. 配置文件有两个quartz.peroperties和log4j.properties
   3. 需要执行的job在execute中调用
   4. Trigger创建常用的两种方式：
      1. cron表达式
      2. 时间间隔