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-test
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://ip:port/hmilyylimh
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.jpa.hibernate.ddl-auto=update
spring.datasource.jpa.show-sql=true
################################################################################
# embedded servlet container
server.port=8390
# sessionTimeout in seconds
server.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;
@DisallowConcurrentExecution
public 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
*
*/
@Component
public 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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