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Spring Boot与Quartz集成实现分布式定时任务集群
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直接贴代码
POM
4.0.0 test.daemon clusterquartz 0.0.1-SNAPSHOT jar clusterquartz http://maven.apache.org org.springframework.boot spring-boot-starter-parent 1.4.1.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-jdbc org.springframework.boot spring-boot-starter-logging org.springframework spring-context-support MySQL mysql-connector-java com.alibaba druid 1.0.13 com.h3database h3 org.quartz-scheduler quartz 2.2.1 org.quartz-scheduler quartz-jobs 2.2.1 junit junit test
application.yml
server: port: 80 spring: datasource: url: jdbc:mysql://localhost:3306/quartz username: admin password: admin driver-class-name: com.mysql.jdbc.Driver
quartz.properties
#============================================================================ # Configure JobStore # Using Spring datasource in SchedulerConfig.java # Spring uses LocalDataSourceJobStore extension of JobStoreCMT #============================================================================ org.quartz.jobStore.useProperties=false org.quartz.jobStore.tablePrefix = QRTZ_ org.quartz.jobStore.isClustered = true org.quartz.jobStore.clusterCheckinInterval = 5000 org.quartz.jobStore.misfireThreshold = 60000 org.quartz.jobStore.txIsolationLevelReadCommitted = true org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate #============================================================================ # Configure Main Scheduler Properties # Needed to manage cluster instances #============================================================================ org.quartz.scheduler.instanceName = ClusterQuartz org.quartz.scheduler.instanceId= AUTO org.quartz.scheduler.rmi.export = false org.quartz.scheduler.rmi.proxy = false org.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;
@Configuration
public 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
@DisallowConcurrentExecution
public 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;
@SpringBootApplication
public 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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