SpringCloud学习心得（六） Springboot与Quartz集成
SpringCloud还有很多的功能，请大家参照《史上最简单的SpringCloud教程》http://blog.csdn.net/forezp/article/details/69939114 方志朋的博客。
本章开始，将陆续介绍集成quartz、Mybatis、多数据源、动态数据源、redis等功能，供大家参考。
为了尽量简化系统规模，我们重新来建立一个项目，即一个eurkea，一个springboot项目。
1、首先建立maven 的pom项目springcloud-parent进行统一的配置文件管理（配置文件分为开发、测试、UAT、PRD四个文件夹，默认用的dev的文件夹)
pom文件
2、建立eureka-server,pom文件如下
配置文件如下bootstrap.yml：
spring:
application:
name: ceo-eureka-server
server:
port: 8601
eureka:
instance:
hostname: localhost
server:
enableSelfPreservation: true
renewalPercentThreshold: 0.1
client:
#通过eureka.client.registerWithEureka：false和fetchRegistry：false来表明自己是一个eureka server.
registerWithEureka: false
fetchRegistry: false
编写一个启动类：
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@EnableEurekaServer
@SpringBootApplication
public class EurekaServer {
public static void main(String[] args) {
SpringApplication.run(EurekaServer.class, args);
}
}
3、建立一个springboot的maven项目 cureka-client-test-quartz
pom文件如下：
配置文件：
spring:
application:
name: ceo-eureka-client-test-quartz
datasource:
driverClassName: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1/bpm?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf-8
username: root
password: 123
server:
port: 8641
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8601/eureka/
在resources目录下建立common文件夹，并建立一个applicationContext.xml备用
配置文件目录如下
建立包domain、service、task、util，目录结构如下
在task包里面建立TestTask，增加两个方法 run() 和 run2()
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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();
}
}
public void run2() {
if (LOG.isInfoEnabled()) {
LOG.info("测试任务线程开始执行22222");
//new ScheduleJobService().getScheduleJob();
}
}
在domain里面建立job的实体类ScheduleJob
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;
}
}
在service包内新增QuartzJobFactory 继承 Job，用于
@DisallowConcurrentExecution
public class QuartzJobFactory implements Job{
private static final Logger LOG = Logger.getLogger(QuartzJobFactory.class.getName());
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
LOG.log(Level.INFO, "QuartzJobFactory execute start");
ScheduleJob scheduleJob = (ScheduleJob)context.getMergedJobDataMap().get("scheduleJob");
LOG.log(Level.INFO, "QuartzJobFactory execute end job name :" + scheduleJob.getJobName());
}
}
@DisallowConcurrentExecution 禁止并发执行多个相同定义的JobDetail, 这个注解是加在Job类上的, 但意思并不是不能同时执行多个Job, 而是不能并发执行同一个Job Definition(由JobDetail定义), 但是可以同时执行多个不同的JobDetail, 举例说明,我们有一个Job类,叫做SayHelloJob, 并在这个Job上加了这个注解, 然后在这个Job上定义了很多个JobDetail, 如sayHelloToJoeJobDetail, sayHelloToMikeJobDetail, 那么当scheduler启动时, 不会并发执行多个sayHelloToJoeJobDetail或者sayHelloToMikeJobDetail, 但可以同时执行sayHelloToJoeJobDetail跟sayHelloToMikeJobDetail
创建ScheduleJobService 定时计划服务
public class ScheduleJobService {
private static final Logger Logger = LoggerFactory.getLogger(ScheduleJobService.class);
public void getScheduleJob(){
try {
SchedulerFactoryBean schedulerFactoryBean = SpringApplicationContextUtil.getBean("scheduler");
Scheduler scheduler = schedulerFactoryBean.getScheduler();
GroupMatcher
Set
List
for (JobKey jobKey : jobKeys) {
List 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);
}
}
}
applicationContext.xml的配置如下：
最后建立一个启动类：
@EnableEurekaClient
@SpringBootApplication
@RestController
@ImportResource("applicationContext.xml")
public class EurekaserverClientOneApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaserverClientOneApplication.class, args);
}
}
启动eureka-server 再启动client，输出如下：
2018-07-26 11:04:40.003 INFO 39156 --- [eduler_Worker-3] com.hotkidceo.springcloud.task.TestTask : 测试任务线程开始执行22222
2018-07-26 11:04:45.003 INFO 39156 --- [eduler_Worker-4] com.hotkidceo.springcloud.task.TestTask : 测试任务线程开始执行
2018-07-26 11:04:50.003 INFO 39156 --- [eduler_Worker-5] com.hotkidceo.springcloud.task.TestTask : 测试任务线程开始执行22222
2018-07-26 11:05:00.004 INFO 39156 --- [eduler_Worker-6] com.hotkidceo.springcloud.task.TestTask : 测试任务线程开始执行
2018-07-26 11:05:00.005 INFO 39156 --- [eduler_Worker-7] com.hotkidceo.springcloud.task.TestTask : 测试任务线程开始执行22222
小编的这个方法，基本是从网上找的，用的是配置文件的方法，目的是为了一个job类里面可以写多个任务方法。大家还可以参考下面这个文章
https://blog.csdn.net/zahngjialiang/article/details/78690932 Springboot实现quartz定时
源码地址：
parent
https://gitee.com/EricLoveMia/eric-springcloud-parent.git
server
https://gitee.com/EricLoveMia/eureka-server.git
client
https://gitee.com/EricLoveMia/eureka-client-test-quzrtz.git
sql在quzrtz项目中