SpringCloud(第 009 篇)简单 Quartz 微服务,不支持分布式
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SpringCloud(第 009 篇)简单 Quartz 微服务,不支持分布式
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一、大致介绍
1、本章节仅仅只是为了测试 Quartz 在微服务中的使用情况;2、其实若只是简单的实现任务调用而言的话,SpringBoot 的 Schedule 这个注解即可满足需求,但是注意该注解不支持分布式;3、注意:配置文件中的 mysql 数据库链接配置大家就各自配置自己的哈;
二、实现步骤
2.1 添加 maven 引用包
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <artifactId>springms-simple-quartz</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <parent> <groupId>com.springms.cloud</groupId> <artifactId>springms-spring-cloud</artifactId> <version>1.0-SNAPSHOT</version> </parent> <dependencies> <!-- 访问数据库模块 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <!-- web模块 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- MYSQL --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- quartz模块 --> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz-jobs</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> </dependency> </dependencies></project>
2.2 添加应用配置文件(springms-simple-quartz/src/main/resources/application.properties)
################################################################################# mysql com.springms.cloud-testspring.datasource.driverClassName=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://ip:port/hmilyylimhspring.datasource.username=usernamespring.datasource.password=passwordspring.datasource.jpa.hibernate.ddl-auto=updatespring.datasource.jpa.show-sql=true################################################################################# embedded servlet containerserver.port=8390# sessionTimeout in secondsserver.sessionTimeout=30000
2.3 添加Spring上下文配置文件(springms-simple-quartz/src/main/resources/applicationContext.xml)
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <bean id="properties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:application.properties</value> </list> </property> <property name="ignoreUnresolvablePlaceholders" value="true" /> </bean> <!-- 使用MethodInvokingJobDetailFactoryBean,任务类可以不实现Job接口,通过targetMethod指定调用方法--> <bean id="taskJob" class="com.springms.cloud.task.TestTask"/> <bean id="jobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> <property name="group" value="job_work"/> <property name="name" value="job_work_name"/> <!--false表示等上一个任务执行完后再开启新的任务--> <property name="concurrent" value="false"/> <property name="targetObject"> <ref bean="taskJob"/> </property> <property name="targetMethod"> <value>run</value> </property> </bean> <!-- 调度触发器 --> <bean id="myTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean"> <property name="name" value="work_default_name"/> <property name="group" value="work_default"/> <property name="jobDetail"> <ref bean="jobDetail" /> </property> <property name="cronExpression"> <value>0/10 * * * * ?</value> </property> </bean> <!-- 调度工厂 --> <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <property name="triggers"> <list> <ref bean="myTrigger"/> </list> </property> </bean> <bean id="springContextUtil" class="com.springms.cloud.util.SpringApplicationContextUtil"/></beans>
2.4 添加任务调度对象类(springms-simple-quartz/src/main/java/com/springms/cloud/domain/ScheduleJob.java)
package com.springms.cloud.domain;/** * 任务调度对象。 * * @author hmilyylimh * * @version 0.0.1 * * @date 17/9/18 * */public class ScheduleJob { private String jobName; private String jobGroup; private String desc; private String jobStatus; private String cronExpression; public String getJobName() { return jobName; } public void setJobName(String jobName) { this.jobName = jobName; } public String getJobGroup() { return jobGroup; } public void setJobGroup(String jobGroup) { this.jobGroup = jobGroup; } public String getDesc() { return desc; } public void setDesc(String desc) { this.desc = desc; } public String getJobStatus() { return jobStatus; } public void setJobStatus(String jobStatus) { this.jobStatus = jobStatus; } public String getCronExpression() { return cronExpression; } public void setCronExpression(String cronExpression) { this.cronExpression = cronExpression; }}
2.5 添加QuartzJobFactory(springms-simple-quartz/src/main/java/com/springms/cloud/service/QuartzJobFactory.java)
package com.springms.cloud.service;import com.springms.cloud.domain.ScheduleJob;import org.quartz.DisallowConcurrentExecution;import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;@DisallowConcurrentExecutionpublic class QuartzJobFactory implements Job { @Override public void execute(JobExecutionContext context) throws JobExecutionException { System.out.println("任务成功运行"); ScheduleJob scheduleJob = (ScheduleJob)context.getMergedJobDataMap().get("scheduleJob"); System.out.println("任务名称 = [" + scheduleJob.getJobName() + "]"); }}
2.6 添加定时任务服务(springms-simple-quartz/src/main/java/com/springms/cloud/service/ScheduleJobService.java)
package com.springms.cloud.service;import java.util.ArrayList;import java.util.List;import java.util.Set;import com.springms.cloud.task.TestTask;import com.springms.cloud.util.SpringApplicationContextUtil;import com.springms.cloud.domain.ScheduleJob;import org.quartz.CronTrigger;import org.quartz.JobKey;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.Trigger;import org.quartz.impl.matchers.GroupMatcher;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.scheduling.quartz.SchedulerFactoryBean;/** * 定时任务服务。 * * @author hmilyylimh * * @version 0.0.1 * * @date 17/9/18 * */public class ScheduleJobService { private static final Logger Logger = LoggerFactory.getLogger(TestTask.class); public void getScheduleJob(){ try { SchedulerFactoryBean schedulerFactoryBean = SpringApplicationContextUtil.getBean("scheduler"); Scheduler scheduler = schedulerFactoryBean.getScheduler(); GroupMatcher<JobKey> matcher = GroupMatcher.anyJobGroup(); Set<JobKey> jobKeys = scheduler.getJobKeys(matcher); List<ScheduleJob> jobList = new ArrayList<ScheduleJob>(); for (JobKey jobKey : jobKeys) { List<? extends Trigger> triggers = scheduler.getTriggersOfJob(jobKey); for (Trigger trigger : triggers) { ScheduleJob job = new ScheduleJob(); job.setJobName(jobKey.getName()); job.setJobGroup(jobKey.getGroup()); job.setDesc("触发器:" + trigger.getKey()); Trigger.TriggerState triggerState = scheduler.getTriggerState(trigger.getKey()); job.setJobStatus(triggerState.name()); if (trigger instanceof CronTrigger) { CronTrigger cronTrigger = (CronTrigger) trigger; String cronExpression = cronTrigger.getCronExpression(); job.setCronExpression(cronExpression); } jobList.add(job); } } for (ScheduleJob job : jobList) { Logger.info("计划列表,name:{},group:{},desc:{},status:{}",job.getJobName(),job.getJobGroup(),job.getDesc(),job.getJobStatus()); } } catch (SchedulerException e) { Logger.error("SchedulerException", e); } }}
2.7 添加测试任务类(springms-simple-quartz/src/main/java/com/springms/cloud/task/TestTask.java)
package com.springms.cloud.task;import org.slf4j.Logger;import org.slf4j.LoggerFactory;/** * 测试任务类(被任务调度后执行该任务类)。 * * @author hmilyylimh * * @version 0.0.1 * * @date 17/9/18 * */public class TestTask { /** 日志对象 */ private static final Logger LOG = LoggerFactory.getLogger(TestTask.class); public void run() { if (LOG.isInfoEnabled()) { LOG.info("测试任务线程开始执行"); //new ScheduleJobService().getScheduleJob(); } }}
2.8 添加 Spring 上下文工具类(springms-simple-quartz/src/main/java/com/springms/cloud/util/SpringApplicationContextUtil.java)
package com.springms.cloud.util;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.stereotype.Component;/** * Spring 上下文工具类。 * * @author hmilyylimh * * @version 0.0.1 * * @date 17/9/18 * */@Componentpublic class SpringApplicationContextUtil implements ApplicationContextAware{ // 声明一个静态变量保存 private static ApplicationContext applicationContext; public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { SpringApplicationContextUtil.applicationContext=applicationContext; } public static ApplicationContext getContext(){ return applicationContext; } @SuppressWarnings("unchecked") public static <T> T getBean(String name) throws BeansException { return (T) applicationContext.getBean(name); }}
2.9 添加 Quartz 启动类(springms-simple-quartz/src/main/java/com/springms/cloud/SimpleQuartzApplication.java)
package com.springms.cloud;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Value;import org.springframework.boot.SpringApplication;import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.ImportResource;import java.util.concurrent.TimeUnit;/** * 简单 Quartz 微服务,不支持分布式。 * * 其实若只是简单的实现任务调用而言的话,SpringBoot 的 Schedule 这个注解即可满足需求,但是注意该注解不支持分布式; * * @author hmilyylimh * * @version 0.0.1 * * @date 2017/9/18 * */@ComponentScan@Configuration@ImportResource("applicationContext.xml")public class SimpleQuartzApplication { private static final Logger Logger = LoggerFactory.getLogger(SimpleQuartzApplication.class); @Value("${server.port}") private int port; @Value("${server.sessionTimeout}") private int sessionTimeout; public static void main(String[] args) { Logger.info("简单Quartz微服务入口函数编码-" +System.getProperty("file.encoding")); SpringApplication.run(SimpleQuartzApplication.class, args); System.out.println("【【【【【【 简单Quartz微服务 】】】】】】已启动."); } @Bean public EmbeddedServletContainerFactory servletContainer() { TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory(); factory.setPort(port); factory.setSessionTimeout(sessionTimeout, TimeUnit.SECONDS); return factory; }}
三、测试
/**************************************************************************************** 一、简单Quartz微服务: 1、添加 Quartz 相关配置文件; 2、启动 springms-simple-quartz 模块服务,启动1个端口; 3、然后查看日志, TestTask 类的日志不断被定时打印出来; 总结:其实若只是简单的实现任务调用而言的话,SpringBoot 的 Schedule 这个注解即可满足需求,但是注意该注解不支持分布式; ****************************************************************************************/
四、下载地址
https://gitee.com/ylimhhmily/SpringCloudTutorial.git
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