SpringBoot+Quartz框架实现分布式集群定时任务实操案例

Java技术 潘老师 1年前 (2022-10-25) 1814 ℃ (0) 扫码查看

定时任务是Java项目开发经常遇到的需求,而Quartz框架是解决定时任务问题非常好的一个框架,当遇到集群部署项目时,为了保证定时任务只能在同一个节点执行,我们需要使用Quartz的集群配置方式来实现。这里潘老师来给大家实操演示下SpringBoot+Quartz框架实现分布式集群定时任务的案例。

一、为什么使用Quartz?

我们知道,如果仅仅只是使用定时任务,可以使用 spring 的spring-task来实现,方便、代码量少、易于实现,一个注解就解决了,但是不支持分布式集群。但是当使用分布式进行部署的时候,就会出现所有的服务器都在跑同一个定时任务,出现一个定时任务被执行多次的情况。那么最好的方式是使用 quartz 进行定时任务的调度。

即:quartz 是一个为了解决分布式定时任务的导致任务重复调度的框架。效果就是,起多个工程,同一个定时任务只会在一个工程上跑。

二、Quartz 有哪些优点?

通过上面的介绍为什么使用Quartz我们可以总结以下几个优点:

  • 1、可以实现多个定时任务进行调度。
  • 2、可以实现代码的解耦,通过配置文件的当时进行配置。
  • 3、功能强大,可以通过 cron 表达式设置复杂的时间任务调度。

三、Quartz 必须关注的几个核心类

  • 1、工作Job: 被调度的任务接口,用于定义具体执行的工作。我们需要实现 Job ,和继承 TimerTask 重写 run 方法一样,重写 Job 中的 excute 方法,excute 方法是任务调度的方法执行位置。
  • 2、工作明细JobDetail: 用于描述定时工作相关的信息。必须通过 JobDetail 来实现 Job 实例(基于 builder 模式实现的)。
  • 3、触发器Trigger: 用于描述触发工作的规则,一般使用cron表达式定义规则。包括 CronTrigger 和 SimpleTrigger,指定任务调度的频率时间。何时进行任务调度(基于 builder 模式实现的)触发器。
  • 4、调度器Scheduler:描述了工作明细和触发器的对应关系。结合 JobDetail 实例和 Trigger 实例,进行任务的触发的调度器(基于 Factory 模式)

四、Quartz 工作原理

一个 Quartz 集群中的每个节点都是一个独立的 Quartz 应用,它又管理着其他的节点。意思是你必须对每个节点分别启动或停止。不像许多应用服务器的集群,独立的 Quartz 节点并不是与另一节点或管理节点通信。Quartz 应用是通过数据库来感知到另一个应用的。离开数据库将无法感知。我们可以看下下面的结构图:
集群式Quartz应用原理图

五、Quartz 分布式集群定时任务案例实现

这里我们使用SpringBoot整合Quartz框架来实现,数据库使用MYSQL数据库。

说明事项: 因为 Quartz 集依赖于数据库,所以必须首先创建 Quartz 数据库表。Quartz 包括了所有被支持的数据库平台的 SQL脚本。本文以 MySQL 数据库为例。
注意:创建的表名都是大写的,在代码中也是使用大写的表名;在liunx中的mysql数据库默认是大小写敏感的,因此使用liunx的数据库会出现找不到表的情况,酌情修改表或是改变数据库配置。

下面我们来看下具体的实操步骤。

1、创建数据库表

注意:目前测试额mysql使用的版本是mysql8.0及以上的,之前试了mysql5.6的发现会报错,因此建议使用mysql8版本的数据库

这里要用到Quartz的11个表,表的创建脚本sql如下:

#
# In your Quartz properties file, you'll need to set
# org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#
#
# By: Ron Cordell - roncordell
#  I didn't see this anywhere, so I thought I'd post it here. This is the script from Quartz to create the tables in a MySQL database, modified to use INNODB instead of MYISAM.
DROP TABLE IF EXISTS QRTZ_FIRED_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_PAUSED_TRIGGER_GRPS;
DROP TABLE IF EXISTS QRTZ_SCHEDULER_STATE;
DROP TABLE IF EXISTS QRTZ_LOCKS;
DROP TABLE IF EXISTS QRTZ_SIMPLE_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_SIMPROP_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_CRON_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_BLOB_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_JOB_DETAILS;
DROP TABLE IF EXISTS QRTZ_CALENDARS;
CREATE TABLE QRTZ_JOB_DETAILS(
SCHED_NAME VARCHAR(120) NOT NULL,
JOB_NAME VARCHAR(190) NOT NULL,
JOB_GROUP VARCHAR(190) NOT NULL,
DESCRIPTION VARCHAR(250) NULL,
JOB_CLASS_NAME VARCHAR(250) NOT NULL,
IS_DURABLE VARCHAR(1) NOT NULL,
IS_NONCONCURRENT VARCHAR(1) NOT NULL,
IS_UPDATE_DATA VARCHAR(1) NOT NULL,
REQUESTS_RECOVERY VARCHAR(1) NOT NULL,
JOB_DATA BLOB NULL,
PRIMARY KEY (SCHED_NAME,JOB_NAME,JOB_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_TRIGGERS (
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
JOB_NAME VARCHAR(190) NOT NULL,
JOB_GROUP VARCHAR(190) NOT NULL,
DESCRIPTION VARCHAR(250) NULL,
NEXT_FIRE_TIME BIGINT(13) NULL,
PREV_FIRE_TIME BIGINT(13) NULL,
PRIORITY INTEGER NULL,
TRIGGER_STATE VARCHAR(16) NOT NULL,
TRIGGER_TYPE VARCHAR(8) NOT NULL,
START_TIME BIGINT(13) NOT NULL,
END_TIME BIGINT(13) NULL,
CALENDAR_NAME VARCHAR(190) NULL,
MISFIRE_INSTR SMALLINT(2) NULL,
JOB_DATA BLOB NULL,
PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
FOREIGN KEY (SCHED_NAME,JOB_NAME,JOB_GROUP)
REFERENCES QRTZ_JOB_DETAILS(SCHED_NAME,JOB_NAME,JOB_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_SIMPLE_TRIGGERS (
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
REPEAT_COUNT BIGINT(7) NOT NULL,
REPEAT_INTERVAL BIGINT(12) NOT NULL,
TIMES_TRIGGERED BIGINT(10) NOT NULL,
PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_CRON_TRIGGERS (
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
CRON_EXPRESSION VARCHAR(120) NOT NULL,
TIME_ZONE_ID VARCHAR(80),
PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_SIMPROP_TRIGGERS
(
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
STR_PROP_1 VARCHAR(512) NULL,
STR_PROP_2 VARCHAR(512) NULL,
STR_PROP_3 VARCHAR(512) NULL,
INT_PROP_1 INT NULL,
INT_PROP_2 INT NULL,
LONG_PROP_1 BIGINT NULL,
LONG_PROP_2 BIGINT NULL,
DEC_PROP_1 NUMERIC(13,4) NULL,
DEC_PROP_2 NUMERIC(13,4) NULL,
BOOL_PROP_1 VARCHAR(1) NULL,
BOOL_PROP_2 VARCHAR(1) NULL,
PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_BLOB_TRIGGERS (
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
BLOB_DATA BLOB NULL,
PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
INDEX (SCHED_NAME,TRIGGER_NAME, TRIGGER_GROUP),
FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_CALENDARS (
SCHED_NAME VARCHAR(120) NOT NULL,
CALENDAR_NAME VARCHAR(190) NOT NULL,
CALENDAR BLOB NOT NULL,
PRIMARY KEY (SCHED_NAME,CALENDAR_NAME))
ENGINE=InnoDB;
CREATE TABLE QRTZ_PAUSED_TRIGGER_GRPS (
SCHED_NAME VARCHAR(120) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
PRIMARY KEY (SCHED_NAME,TRIGGER_GROUP))
ENGINE=InnoDB;
CREATE TABLE QRTZ_FIRED_TRIGGERS (
SCHED_NAME VARCHAR(120) NOT NULL,
ENTRY_ID VARCHAR(95) NOT NULL,
TRIGGER_NAME VARCHAR(190) NOT NULL,
TRIGGER_GROUP VARCHAR(190) NOT NULL,
INSTANCE_NAME VARCHAR(190) NOT NULL,
FIRED_TIME BIGINT(13) NOT NULL,
SCHED_TIME BIGINT(13) NOT NULL,
PRIORITY INTEGER NOT NULL,
STATE VARCHAR(16) NOT NULL,
JOB_NAME VARCHAR(190) NULL,
JOB_GROUP VARCHAR(190) NULL,
IS_NONCONCURRENT VARCHAR(1) NULL,
REQUESTS_RECOVERY VARCHAR(1) NULL,
PRIMARY KEY (SCHED_NAME,ENTRY_ID))
ENGINE=InnoDB;
CREATE TABLE QRTZ_SCHEDULER_STATE (
SCHED_NAME VARCHAR(120) NOT NULL,
INSTANCE_NAME VARCHAR(190) NOT NULL,
LAST_CHECKIN_TIME BIGINT(13) NOT NULL,
CHECKIN_INTERVAL BIGINT(13) NOT NULL,
PRIMARY KEY (SCHED_NAME,INSTANCE_NAME))
ENGINE=InnoDB;
CREATE TABLE QRTZ_LOCKS (
SCHED_NAME VARCHAR(120) NOT NULL,
LOCK_NAME VARCHAR(40) NOT NULL,
PRIMARY KEY (SCHED_NAME,LOCK_NAME))
ENGINE=InnoDB;
CREATE INDEX IDX_QRTZ_J_REQ_RECOVERY ON QRTZ_JOB_DETAILS(SCHED_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_J_GRP ON QRTZ_JOB_DETAILS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME);
CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME);
CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);
commit;

数据库表结构的说明,请参考如下文章:

Quartz定时任务调度框架中11张表及其表字段的意义(2.3版本)

文章目录 文章目录 文章目录 前言 一、qrtz_job_details 二、qrtz_triggers 三、 […]

其他数据库脚本也可以到quartz官网下载最新的包:http://www.quartz-scheduler.org/downloads/

解压后,可以看到结构目录。在org\quartz\impl\jdbcjobstore下选择合适你数据库的SQL执行文件。

2、引入相关依赖

<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
<!--quartz依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-quartz</artifactId>
<version>2.7.4</version>
</dependency>

提示:spring-boot-starter-quartz-2.7.4.jar整合的是quartz 2.3.2版本,去查看quartz源码-github官网

3、核心配置

application.yml核文件配置如下:

server:
port: 8080
spring:
datasource:
username: test_db
password: mysql
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/test_db?serverTimezone=UTC&characterEncoding=utf8&useUnicode=true&useSSL=false
quartz:
#相关属性配置
properties:
#quartz集群配置
org:
quartz:
# 1、Configure 调度器属性
scheduler:
instanceName: DefaultQuartzScheduler
#ID设置为自动获取 每一个必须不同
instanceId: AUTO
# 2、Configure JobStore
jobStore:
# 信息保存时间 默认值60秒
misfireThreshold: 60000
#数据保存方式为数据库持久化
class: org.springframework.scheduling.quartz.LocalDataSourceJobStore
#数据库代理类,一般org.quartz.impl.jdbcjobstore.StdJDBCDelegate可以满足大部分数据库
driverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#表的前缀,默认QRTZ_
tablePrefix: QRTZ_
#是否加入集群
isClustered: true
#调度实例失效的检查时间间隔
clusterCheckinInterval: 10000
useProperties: false
# 3、Configure ThreadPool
threadPool:
#线程池的实现类(一般使用SimpleThreadPool即可满足几乎所有用户的需求)
class: org.quartz.simpl.SimpleThreadPool
#指定线程数,至少为1(无默认值)(一般设置为1-100直接的整数合适)
threadCount: 10
#设置线程的优先级(最大为java.lang.Thread.MAX_PRIORITY 10,最小为Thread.MIN_PRIORITY 1,默认为5)
threadPriority: 5
threadsInheritContextClassLoaderOfInitializingThread: true
#数据库方式
job-store-type: jdbc

4、新建quartz相关的核心类

我们先在springboot项目中新建一个quartz包,把相关的定时调度任务相关类都放在一个包中。然后再去创建相关的类,如下:

1)新建调度任务管理类-QuartzManager

该任务调度管理类对调度任务的增删改查进行的封装,可以轻松地对外提供新增、移除或更新一个定时任务。

package com.panziye.quartztest.quartz;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.quartz.QuartzJobBean;
import org.springframework.stereotype.Component;
/**
* @author panziye
* @description <p></p>
* @date 2022-10-25 15:37
**/
@Component
public class QuartzManager {
@Autowired
private Scheduler scheduler;
/**
* 创建or更新任务,存在则更新不存在创建
*
* @param jobClass     任务类
* @param jobName      任务名称
* @param jobGroupName 任务组名称
* @param jobCron      cron表达式
*/
public void addOrUpdateJob(Class<? extends QuartzJobBean> jobClass, String jobName, String jobGroupName, String jobCron) {
try {
TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroupName);
CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
if (trigger==null) {
addJob(jobClass, jobName, jobGroupName, jobCron);
} else {
if (trigger.getCronExpression().equals(jobCron)) {
return;
}
updateJob(jobName, jobGroupName, jobCron);
}
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 增加一个job
*
* @param jobClass     任务实现类
* @param jobName      任务名称
* @param jobGroupName 任务组名
* @param jobCron      cron表达式(如:0/5 * * * * ? )
*/
public void addJob(Class<? extends QuartzJobBean> jobClass, String jobName, String jobGroupName, String jobCron) {
try {
JobDetail jobDetail = JobBuilder.newJob(jobClass).withIdentity(jobName, jobGroupName).build();
Trigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName, jobGroupName)
.startAt(DateBuilder.futureDate(1, DateBuilder.IntervalUnit.SECOND))
.withSchedule(CronScheduleBuilder.cronSchedule(jobCron)).startNow().build();
scheduler.scheduleJob(jobDetail, trigger);
if (!scheduler.isShutdown()) {
scheduler.start();
}
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* @param jobClass
* @param jobName
* @param jobGroupName
* @param jobTime
*/
public void addJob(Class<? extends Job> jobClass, String jobName, String jobGroupName, int jobTime) {
addJob(jobClass, jobName, jobGroupName, jobTime, -1);
}
public void addJob(Class<? extends Job> jobClass, String jobName, String jobGroupName, int jobTime, int jobTimes) {
try {
JobDetail jobDetail = JobBuilder.newJob(jobClass).withIdentity(jobName, jobGroupName)// 任务名称和组构成任务key
.build();
// 使用simpleTrigger规则
Trigger trigger;
if (jobTimes < 0) {
trigger = TriggerBuilder.newTrigger().withIdentity(jobName, jobGroupName)
.withSchedule(SimpleScheduleBuilder.repeatSecondlyForever(1).withIntervalInSeconds(jobTime))
.startNow().build();
} else {
trigger = TriggerBuilder
.newTrigger().withIdentity(jobName, jobGroupName).withSchedule(SimpleScheduleBuilder
.repeatSecondlyForever(1).withIntervalInSeconds(jobTime).withRepeatCount(jobTimes))
.startNow().build();
}
scheduler.scheduleJob(jobDetail, trigger);
if (!scheduler.isShutdown()) {
scheduler.start();
}
} catch (SchedulerException e) {
e.printStackTrace();
}
}
public void updateJob(String jobName, String jobGroupName, String jobTime) {
try {
TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroupName);
CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
trigger = trigger.getTriggerBuilder().withIdentity(triggerKey)
.withSchedule(CronScheduleBuilder.cronSchedule(jobTime)).build();
// 重启触发器
scheduler.rescheduleJob(triggerKey, trigger);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 删除任务一个job
*
* @param jobName      任务名称
* @param jobGroupName 任务组名
*/
public void deleteJob(String jobName, String jobGroupName) {
try {
scheduler.pauseTrigger(TriggerKey.triggerKey(jobName, jobGroupName));
scheduler.unscheduleJob(TriggerKey.triggerKey(jobName, jobGroupName));
scheduler.deleteJob(new JobKey(jobName, jobGroupName));
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 暂停一个job
*
* @param jobName
* @param jobGroupName
*/
public void pauseJob(String jobName, String jobGroupName) {
try {
JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
scheduler.pauseJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 恢复一个job
*
* @param jobName
* @param jobGroupName
*/
public void resumeJob(String jobName, String jobGroupName) {
try {
JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
scheduler.resumeJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
/**
* 立即执行一个job
*
* @param jobName
* @param jobGroupName
*/
public void runJobNow(String jobName, String jobGroupName) {
try {
JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
scheduler.triggerJob(jobKey);
} catch (SchedulerException e) {
e.printStackTrace();
}
}
}

2)新建任务类-MyJob1

这是我们自己需要实现的定时任务类,需要继承QuartzJobBean,相关的核心业务代码都写在executeInternal方法中。

package com.panziye.quartztest.quartz;
import org.quartz.*;
import org.springframework.scheduling.quartz.QuartzJobBean;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
* @author panziye
* @description <p></p>
* @date 2022-10-25 15:02
**/
@PersistJobDataAfterExecution
@DisallowConcurrentExecution
public class MyJob1 extends QuartzJobBean {
@Override
protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
try {
System.out.println("调度id="+context.getScheduler().getSchedulerInstanceId());
System.out.println("任务名="+context.getJobDetail().getKey()+",执行时间="+new Date());
} catch (Exception e) {
e.printStackTrace();
}
}
}

3)新建项目启动监听类-StartApplicationListerner

该类在项目启动时会自动执行,我们将对应的Job任务交给QuartzManager类去进行管理,比如这里在项目启动时就去新增或更新该定时调度任务。

package com.panziye.quartztest.quartz;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
/**
* @author panziye
* @description <p></p>
* @date 2022-10-25 15:16
**/
@Component
public class StartApplicationListerner implements ApplicationListener<ContextRefreshedEvent> {
@Autowired
private QuartzManager quartzManager;
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
quartzManager.addOrUpdateJob(MyJob1.class,"job1","group1","0/10 * * * * ?");
}
}

测试

接下来我们开始测试多节点定时任务执行情况,先直接启动Application类,然后在EditConfiguration中新增第二个Application:

然后再去把application.yml中的端口号改为8081,再去启动Application2,我们发现定时任务只会在一个节点执行:


至此,全部完成。

扩展:

如果我们需要将配置任务界面化操作,可以将新增如下代码:

1、新增查询结果的实体类

@Data
public class JobDetails{
private String cronExpression;    
private String jobClassName;    
private String triggerGroupName;
private String triggerName;
private String jobGroupName;
private String jobName;
private Date nextFireTime;
private Date previousFireTime;
private Date startTime;
private String timeZone;
private String status;
}

2、在QuartzManager中新增对外查询的方法

public PageInfo<JobDetails> queryAllJobBean(int pageNum, int pageSize) {
PageHelper.startPage(pageNum, pageSize);
List<JobDetails> jobList = null;
try {
GroupMatcher<JobKey> matcher = GroupMatcher.anyJobGroup();
Set<JobKey> jobKeys = sched.getJobKeys(matcher);
jobList = new ArrayList<>();
for (JobKey jobKey : jobKeys) {
List<? extends Trigger> triggers = sched.getTriggersOfJob(jobKey);
for (Trigger trigger : triggers) {
JobDetails jobDetails = new JobDetails();
if (trigger instanceof CronTrigger) {
CronTrigger cronTrigger = (CronTrigger) trigger;
jobDetails.setCronExpression(cronTrigger.getCronExpression());
jobDetails.setTimeZone(cronTrigger.getTimeZone().getDisplayName());
}
jobDetails.setTriggerGroupName(trigger.getKey().getName());
jobDetails.setTriggerName(trigger.getKey().getGroup());
jobDetails.setJobGroupName(jobKey.getGroup());
jobDetails.setJobName(jobKey.getName());
jobDetails.setStartTime(trigger.getStartTime());
jobDetails.setJobClassName(sched.getJobDetail(jobKey).getJobClass().getName());
jobDetails.setNextFireTime(trigger.getNextFireTime());
jobDetails.setPreviousFireTime(trigger.getPreviousFireTime());
jobDetails.setStatus(sched.getTriggerState(trigger.getKey()).name());
jobList.add(jobDetails);
}
}
} catch (SchedulerException e) {
e.printStackTrace();
}
return new PageInfo<>(jobList);
}
/**
* 获取所有计划中的任务列表
*
* @return
*/
public List<Map<String, Object>> queryAllJob() {
List<Map<String, Object>> jobList = null;
try {
GroupMatcher<JobKey> matcher = GroupMatcher.anyJobGroup();
Set<JobKey> jobKeys = sched.getJobKeys(matcher);
jobList = new ArrayList<>();
for (JobKey jobKey : jobKeys) {
List<? extends Trigger> triggers = sched.getTriggersOfJob(jobKey);
for (Trigger trigger : triggers) {
Map<String, Object> map = new HashMap<>();
map.put("jobName", jobKey.getName());
map.put("jobGroupName", jobKey.getGroup());
map.put("description", "trigger:" + trigger.getKey());
Trigger.TriggerState triggerState = sched.getTriggerState(trigger.getKey());
map.put("jobStatus", triggerState.name());
if (trigger instanceof CronTrigger) {
CronTrigger cronTrigger = (CronTrigger) trigger;
String cronExpression = cronTrigger.getCronExpression();
map.put("jobTime", cronExpression);
}
jobList.add(map);
}
}
} catch (SchedulerException e) {
e.printStackTrace();
}
return jobList;
}
/**
* 获取所有正在运行的job
*
* @return
*/
public List<Map<String, Object>> queryRunJon() {
List<Map<String, Object>> jobList = null;
try {
List<JobExecutionContext> executingJobs = sched.getCurrentlyExecutingJobs();
jobList = new ArrayList<>(executingJobs.size());
for (JobExecutionContext executingJob : executingJobs) {
Map<String, Object> map = new HashMap<>();
JobDetail jobDetail = executingJob.getJobDetail();
JobKey jobKey = jobDetail.getKey();
Trigger trigger = executingJob.getTrigger();
map.put("jobName", jobKey.getName());
map.put("jobGroupName", jobKey.getGroup());
map.put("description", "trigger:" + trigger.getKey());
Trigger.TriggerState triggerState = sched.getTriggerState(trigger.getKey());
map.put("jobStatus", triggerState.name());
if (trigger instanceof CronTrigger) {
CronTrigger cronTrigger = (CronTrigger) trigger;
String cronExpression = cronTrigger.getCronExpression();
map.put("jobTime", cronExpression);
}
jobList.add(map);
}
} catch (SchedulerException e) {
e.printStackTrace();
}
return jobList;
}

3、controller控制层代码

import java.util.HashMap;
import java.util.Map;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.quartz.QuartzJobBean;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import tech.pdai.springboot.quartz.cluster.entity.JobDetails;
import tech.pdai.springboot.quartz.cluster.manager.QuartzManager;
@RestController
@RequestMapping(value = "/job")
public class JobController {
@Autowired
private QuartzManager qtzManager;
@SuppressWarnings("unchecked")
private static Class<? extends QuartzJobBean> getClass(String classname) throws Exception {
Class<?> class1 = Class.forName(classname);
return (Class<? extends QuartzJobBean>) class1;
}
/**
* @param jobClassName
* @param jobGroupName
* @param cronExpression
* @throws Exception
*/
@PostMapping(value = "/addjob")
public void addjob(@RequestParam(value = "jobClassName") String jobClassName,
@RequestParam(value = "jobGroupName") String jobGroupName,
@RequestParam(value = "cronExpression") String cronExpression) throws Exception {
qtzManager.addOrUpdateJob(getClass(jobClassName), jobClassName, jobGroupName, cronExpression);
}
/**
* @param jobClassName
* @param jobGroupName
* @throws Exception
*/
@PostMapping(value = "/pausejob")
public void pausejob(@RequestParam(value = "jobClassName") String jobClassName,
@RequestParam(value = "jobGroupName") String jobGroupName) throws Exception {
qtzManager.pauseJob(jobClassName, jobGroupName);
}
/**
* @param jobClassName
* @param jobGroupName
* @throws Exception
*/
@PostMapping(value = "/resumejob")
public void resumejob(@RequestParam(value = "jobClassName") String jobClassName,
@RequestParam(value = "jobGroupName") String jobGroupName) throws Exception {
qtzManager.resumeJob(jobClassName, jobGroupName);
}
/**
* @param jobClassName
* @param jobGroupName
* @param cronExpression
* @throws Exception
*/
@PostMapping(value = "/reschedulejob")
public void rescheduleJob(@RequestParam(value = "jobClassName") String jobClassName,
@RequestParam(value = "jobGroupName") String jobGroupName,
@RequestParam(value = "cronExpression") String cronExpression) throws Exception {
qtzManager.addOrUpdateJob(getClass(jobClassName), jobClassName, jobGroupName, cronExpression);
}
/**
* @param jobClassName
* @param jobGroupName
* @throws Exception
*/
@PostMapping(value = "/deletejob")
public void deletejob(@RequestParam(value = "jobClassName") String jobClassName,
@RequestParam(value = "jobGroupName") String jobGroupName) throws Exception {
qtzManager.deleteJob(jobClassName, jobGroupName);
}
/**
* @param pageNum
* @param pageSize
* @return
*/
@GetMapping(value = "/queryjob")
public Map<String, Object> queryjob(@RequestParam(value = "pageNum") Integer pageNum,
@RequestParam(value = "pageSize") Integer pageSize) {
PageInfo<JobDetails> jobAndTrigger = qtzManager.queryAllJobBean(pageNum, pageSize);
Map<String, Object> map = new HashMap<String, Object>();
map.put("JobAndTrigger", jobAndTrigger);
map.put("number", jobAndTrigger.getTotal());
return map;
}
}

5、前端实现

简单用VueJS 写个页面测试

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>QuartzDemo</title>
<link rel="stylesheet" href="https://unpkg.com/element-ui@2.0.5/lib/theme-chalk/index.css">
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="http://cdn.bootcss.com/vue-resource/1.3.4/vue-resource.js"></script>
<script src="https://unpkg.com/element-ui@2.0.5/lib/index.js"></script>
<style>      
#top {
background:#20A0FF;
padding:5px;
overflow:hidden
}
</style>
</head>
<body>
<div id="test">                
<div id="top">            
<el-button type="text" @click="search" style="color:white">查询</el-button>    
<el-button type="text" @click="handleadd" style="color:white">添加</el-button>    
</span>                        
</div>    
<br/>
<div style="margin-top:15px">    
<el-table
ref="testTable"          
:data="tableData"
style="width:100%"
border
>
<el-table-column
prop="status"
label="任务状态"
sortable
show-overflow-tooltip>
</el-table-column>
<el-table-column
prop="jobName"
label="任务名称"
sortable
show-overflow-tooltip>
</el-table-column>
<el-table-column
prop="jobGroupName"
label="任务所在组"
sortable>
</el-table-column>
<el-table-column
prop="jobClassName"
label="任务类名"
sortable>
</el-table-column>
<el-table-column
prop="triggerName"
label="触发器名称"
sortable>
</el-table-column>
<el-table-column
prop="triggerGroupName"
label="触发器所在组"
sortable>
</el-table-column>
<el-table-column
prop="cronExpression"
label="表达式"
sortable>
</el-table-column>
<el-table-column
prop="timeZone"
label="时区"
sortable>
</el-table-column>
<el-table-column label="操作" width="300">
<template scope="scope">
<el-button
size="small"
type="warning"
@click="handlePause(scope.$index, scope.row)">暂停</el-button>
<el-button
size="small"
type="info"
@click="handleResume(scope.$index, scope.row)">恢复</el-button>
<el-button
size="small"
type="danger"
@click="handleDelete(scope.$index, scope.row)">删除</el-button>
<el-button
size="small"
type="success"
@click="handleUpdate(scope.$index, scope.row)">修改</el-button>
</template>
</el-table-column>
</el-table>
<div align="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="currentPage"
:page-sizes="[10, 20, 30, 40]"
:page-size="pagesize"
layout="total, sizes, prev, pager, next, jumper"
:total="totalCount">
</el-pagination>
</div>
</div> 
<el-dialog title="添加任务" :visible.sync="dialogFormVisible">
<el-form :model="form">
<el-form-item label="任务名称" label-width="120px" style="width:35%">
<el-input v-model="form.jobName" auto-complete="off"></el-input>
</el-form-item>        
<el-form-item label="任务分组" label-width="120px" style="width:35%">
<el-input v-model="form.jobGroup" auto-complete="off"></el-input>
</el-form-item>
<el-form-item label="表达式" label-width="120px" style="width:35%">
<el-input v-model="form.cronExpression" auto-complete="off"></el-input>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="dialogFormVisible = false">取 消</el-button>
<el-button type="primary" @click="add">确 定</el-button>
</div>
</el-dialog>
<el-dialog title="修改任务" :visible.sync="updateFormVisible">
<el-form :model="updateform">
<el-form-item label="表达式" label-width="120px" style="width:35%">
<el-input v-model="updateform.cronExpression" auto-complete="off"></el-input>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="updateFormVisible = false">取 消</el-button>
<el-button type="primary" @click="update">确 定</el-button>
</div>
</el-dialog>
</div>
<footer align="center">
<p>© Quartz 任务管理</p>
</footer>
<script>
var vue = new Vue({            
el:"#test",
data: {          
//表格当前页数据
tableData: [],
//请求的URL
url:'job/queryjob',
//默认每页数据量
pagesize: 10,                
//当前页码
currentPage: 1,
//查询的页码
start: 1,
//默认数据总数
totalCount: 1000,
//添加对话框默认可见性
dialogFormVisible: false,
//修改对话框默认可见性
updateFormVisible: false,
//提交的表单
form: {
jobName: '',
jobGroup: '',
cronExpression: '',
},
updateform: {
jobName: '',
jobGroup: '',
cronExpression: '',
},
},
methods: {
//从服务器读取数据
loadData: function(pageNum, pageSize){                    
this.$http.get('job/queryjob?' + 'pageNum=' +  pageNum + '&pageSize=' + pageSize).then(function(res){
console.log(res)
this.tableData = res.body.JobAndTrigger.list;
this.totalCount = res.body.number;
},function(){
console.log('failed');
});                    
},                                
//单行删除
handleDelete: function(index, row) {
this.$http.post('job/deletejob',{"jobClassName":row.jobName,"jobGroupName":row.jobGroupName},{emulateJSON: true}).then(function(res){
this.loadData( this.currentPage, this.pagesize);
},function(){
console.log('failed');
});
},
//暂停任务
handlePause: function(index, row){
this.$http.post('job/pausejob',{"jobClassName":row.jobName,"jobGroupName":row.jobGroupName},{emulateJSON: true}).then(function(res){
this.loadData( this.currentPage, this.pagesize);
},function(){
console.log('failed');
});
},
//恢复任务
handleResume: function(index, row){
this.$http.post('job/resumejob',{"jobClassName":row.jobName,"jobGroupName":row.jobGroupName},{emulateJSON: true}).then(function(res){
this.loadData( this.currentPage, this.pagesize);
},function(){
console.log('failed');
});
},
//搜索
search: function(){
this.loadData(this.currentPage, this.pagesize);
},
//弹出对话框
handleadd: function(){                        
this.dialogFormVisible = true;                  
},
//添加
add: function(){
this.$http.post('job/addjob',{"jobClassName":this.form.jobName,"jobGroupName":this.form.jobGroup,"cronExpression":this.form.cronExpression},{emulateJSON: true}).then(function(res){
this.loadData(this.currentPage, this.pagesize);
this.dialogFormVisible = false;
},function(){
console.log('failed');
});
},
//更新
handleUpdate: function(index, row){
console.log(row)
this.updateFormVisible = true;
this.updateform.jobName = row.jobClassName;
this.updateform.jobGroup = row.jobGroupName;
},
//更新任务
update: function(){
this.$http.post
('job/reschedulejob',
{"jobClassName":this.updateform.jobName,
"jobGroupName":this.updateform.jobGroup,
"cronExpression":this.updateform.cronExpression
},{emulateJSON: true}
).then(function(res){
this.loadData(this.currentPage, this.pagesize);
this.updateFormVisible = false;
},function(){
console.log('failed');
});
},
//每页显示数据量变更
handleSizeChange: function(val) {
this.pagesize = val;
this.loadData(this.currentPage, this.pagesize);
},
//页码变更
handleCurrentChange: function(val) {
this.currentPage = val;
this.loadData(this.currentPage, this.pagesize);
},          
},        
});
//载入数据
vue.loadData(vue.currentPage, vue.pagesize);
</script>  
</body>
</html>

6、测试效果

(PS: 这里的任务名称需要改成你自己的完整类名称)

展示正在运行的Jobs:


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