Spring Boot与Quartz集成实现分布式定时任务集群

直接贴代码

POM

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://mitted = trueorg.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTXorg.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate#============================================================================# Configure Main Scheduler Properties# Needed to manage cluster instances#============================================================================org.quartz.scheduler.instanceName = ClusterQuartzorg.quartz.scheduler.instanceId= AUTOorg.quartz.scheduler.rmi.export = falseorg.quartz.scheduler.rmi.proxy = falseorg.quartz.scheduler.wrapJobExecutionInUserTransaction = false#============================================================================# Configure ThreadPool# Can also be configured in spring configuration#============================================================================#org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool#org.quartz.threadPool.threadCount = 5#org.quartz.threadPool.threadPriority = 5#org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread = true

Spring配置类

package test.daemon.clusterquartz.config;import java.io.IOException;import java.util.Properties;import java.util.concurrent.Executor;import javax.sql.DataSource;import org.quartz.Scheduler;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.config.PropertiesFactoryBean;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.core.io.ClassPathResource;import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;import org.springframework.scheduling.quartz.CronTriggerFactoryBean;import org.springframework.scheduling.quartz.JobDetailFactoryBean;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import test.daemon.clusterquartz.quartz.QuartzJob;@Configurationpublic class SchedulerConfig { @Autowired private DataSource dataSource; @Bean public Scheduler scheduler() throws Exception { Scheduler scheduler = schedulerFactoryBean().getScheduler(); scheduler.start(); return scheduler; } @Bean public SchedulerFactoryBean schedulerFactoryBean() throws IOException { SchedulerFactoryBean factory = new SchedulerFactoryBean(); factory.setSchedulerName("Cluster_Scheduler"); factory.setDataSource(dataSource); factory.setApplicationContextSchedulerContextKey("applicationContext"); factory.setTaskExecutor(schedulerThreadPool()); factory.setTriggers(trigger1().getObject()); factory.setQuartzProperties(quartzProperties()); return factory; } @Bean public Properties quartzProperties() throws IOException { PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean(); propertiesFactoryBean.setLocation(new ClassPathResource("/quartz.properties")); // 在quartz.properties中的属性被读取并注入后再初始化对象 propertiesFactoryBean.afterPropertiesSet(); return propertiesFactoryBean.getObject(); } @Bean public JobDetailFactoryBean job1() { JobDetailFactoryBean jobDetailFactoryBean = new JobDetailFactoryBean(); jobDetailFactoryBean.setJobClass(QuartzJob.class); jobDetailFactoryBean.setDurability(true); jobDetailFactoryBean.setRequestsRecovery(true); return jobDetailFactoryBean; } @Bean public CronTriggerFactoryBean trigger1() { CronTriggerFactoryBean cronTriggerFactoryBean = new CronTriggerFactoryBean(); cronTriggerFactoryBean.setJobDetail(job1().getObject()); cronTriggerFactoryBean.setCronExpression("0/3 * * * * ?"); return cronTriggerFactoryBean; } @Bean public Executor schedulerThreadPool() { ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor(); executor.setCorePoolSize(15); executor.setMaxPoolSize(25); executor.setQueueCapacity(100); return executor; }}

Quartz job类

package test.daemon.clusterquartz.quartz;import java.util.Date;import org.quartz.DisallowConcurrentExecution;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.quartz.PersistJobDataAfterExecution;import org.springframework.scheduling.quartz.QuartzJobBean;@PersistJobDataAfterExecution@DisallowConcurrentExecutionpublic class QuartzJob extends QuartzJobBean { @Override protected void executeInternal(JobExecutionContext context) throws JobExecutionException { // TODO Auto-generated method stub System.out.println("\nQuartz job " + new Date()); }}

Spring Boot启动类

package test.daemon.clusterquartz;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class Cluster { public static void main(String[] args) throws Exception { SpringApplication.run(Cluster.class, args); }}

数据库sql

可以在Quartz的lib中找到适当的数据库生成文件来创建jdbc job store所需要的表。这些表用于Quartz在集群环境中的调度。

一些解释

把项目复制一份，然后改掉spring server的启动端口，启动多个项目，可以观察到只有一个项目的Quartz在运行。如果当前运行Quartz的服务器挂掉，另一台会跟进执行相同的Quartz任务。

有待思考的部分

在Quartz集群环境中，时间的同步是一个重要问题，有时间需要去看一下怎么进行时间同步来确保集群的正确性。

总结

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