Quartz是OpenSymphony开源组织在Job scheduling领域又一个开源项目,完全由Java开发,可以用来执行定时任务,类似于java.util.Timer。Quartz具有以下特点:
(1)强大的调度功能,例如支持丰富多样的调度方法,可以满足各种常规及特殊需求;
(2)灵活的应用方式,例如支持任务和调度的多种组合方式,支持调度数据的多种存储方式;
(3)分布式和集群能力,Terracotta收购后在原来功能基础上作了进一步提升。
Quartz主要有三大组件:
Scheduler——任务调度器、Trigger——触发器、Job——任务。其中trigger和job是任务调度的元数据,scheduler是实际执行调度的控制器。
Trigger是用于定义调度时间的元素,即按照什么时间规则去执行任务。由TriggerBuilder创建,Quartz中主要提供了四种类型的trigger:SimpleTrigger,CronTirgger,DateIntervalTrigger,和NthIncludedDayTrigger。这四种trigger可以满足企业应用中的绝大部分需求。
Job用于表示被调度的任务。Scheduler调度任务时,不会直接调度job,而是会调度job的包装类JobDetail,由JobBuilder创建,一个job可以被多个trigger关联,但是一个trigger只能关联一个job。
Scheduler由scheduler工厂创建:DirectSchedulerFactory或者StdSchedulerFactory。第二种工厂StdSchedulerFactory使用较多,因为DirectSchedulerFactory使用起来不够方便,需要作许多详细的手工编码设置。Scheduler主要有两种:RemoteScheduler和StdScheduler。
元素关系图如下:
引入pom依赖
org.springframework.boot
spring-boot-starter-quartz
job类 DateTimeJob
package com.example.quartz.job;
import java.text.SimpleDateFormat;
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;
/**
* @author yly
* @date 2021/10/26
*/
@DisallowConcurrentExecution// 单任务串行执行,多任务并行执行
@PersistJobDataAfterExecution // jobDetail中的jobDataMap持久化
public class DateTimeJob extends QuartzJobBean {
@Override
protected void executeInternal(JobExecutionContext jobExecutionContext)
throws JobExecutionException {
// 获取JobDetail中关联的数据
String msg = (String) jobExecutionContext.getJobDetail().getJobDataMap().get("msg");
System.out.println(
"task1 start 执行2s,线程id:"
+ Thread.currentThread().getId()
+ " time:"
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
try {
Thread.sleep(2000);
} catch (Exception e) {
}
System.out.println(
"task1 end 执行2s,线程id:"
+ Thread.currentThread().getId()
+ " time:"
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
}
}
配置类 QuartzConfig(配置了JobDetail和trigger)
package com.example.quartz.config;
import com.example.quartz.job.DateTimeJob;
import org.quartz.CronScheduleBuilder;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author yly
* @date 2021/10/26
*/
@Configuration
public class QuartzConfig {
@Bean
public JobDetail printTimeJobDetail() {
return JobBuilder.newJob(DateTimeJob.class) // PrintTimeJob我们的业务类
.withIdentity("DateTimeJob") // 可以给该JobDetail起一个id
// 每个JobDetail内都有一个Map,包含了关联到这个Job的数据,在Job类中可以通过context获取
.usingJobData("msg", "Hello Quartz") // 关联键值对
.storeDurably() // 即使没有Trigger关联时,也不需要删除该JobDetail
.build();
}
@Bean
public Trigger printTimeJobTrigger() {
CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule("0/1 * * * * ?");
return TriggerBuilder.newTrigger()
.forJob(printTimeJobDetail()) // 关联上述的JobDetail
.withIdentity("quartzTaskService") // 给Trigger起个名字
.withSchedule(cronScheduleBuilder)
.build();
}
}
实际应用中,基本都是会使用分布式集群版的quartz。
Quartz中的trigger和job需要存储下来才能被使用。Quartz中有两种存储方式:RAMJobStore,JobStoreSupport,其中RAMJobStore是将trigger和job存储在内存中,而JobStoreSupport是基于jdbc将trigger和job存储到数据库中。RAMJobStore的存取速度非常快,但是由于其在系统被停止后所有的数据都会丢失,所以在集群应用中,必须使用JobStoreSupport。
一个Quartz集群中的每个节点是一个独立的Quartz应用,它又管理着其他的节点。这就意味着你必须对每个节点分别启动或停止。Quartz集群中,独立的Quartz节点并不与另一其的节点或是管理节点通信,而是通过相同的数据库表来感知到另一Quartz应用的。如下所示:
因为Quartz集群依赖于数据库,所以必须首先创建Quartz数据库表,Quartz发布包中包括了所有被支持的数据库平台的SQL脚本。这些SQL脚本存放于
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(200) NOT NULL,
JOB_GROUP VARCHAR(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) NOT NULL,
JOB_NAME VARCHAR(200) NOT NULL,
JOB_GROUP VARCHAR(200) 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(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) 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(200) 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(200) 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(200) NOT NULL,
TRIGGER_GROUP VARCHAR(200) NOT NULL,
INSTANCE_NAME VARCHAR(200) 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(200) NULL,
JOB_GROUP VARCHAR(200) 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(200) 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;
Quartz Scheduler自身是察觉不到被集群的,只有配置给Scheduler的JDBC JobStore才知道。当Quartz Scheduler启动时,它调用JobStore的schedulerStarted()方法,它告诉JobStore Scheduler已经启动了。schedulerStarted() 方法是在JobStoreSupport类中实现的。JobStoreSupport类会根据quartz.properties文件中的设置来确定Scheduler实例是否参与到集群中。假如配置了集群,一个新的ClusterManager类的实例就被创建、初始化并启动。ClusterManager是在JobStoreSupport类中的一个内嵌类,继承了java.lang.Thread,它会定期运行,并对Scheduler实例执行检入的功能。Scheduler也要查看是否有任何一个别的集群节点失败了。检入操作执行周期在quartz.properties中配置。
当一个Scheduler实例执行检入时,它会查看是否有其他的Scheduler实例在到达他们所预期的时间还未检入。这是通过检查SCHEDULER_STATE表中Scheduler记录在LAST_CHEDK_TIME列的值是否早于org.quartz.jobStore.clusterCheckinInterval来确定的。如果一个或多个节点到了预定时间还没有检入,那么运行中的Scheduler就假定它(们) 失败了。
引入pom依赖
org.springframework.boot
spring-boot-starter-parent
2.0.1.RELEASE
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-autoconfigure
org.springframework.boot
spring-boot-starter-quartz
mysql
mysql-connector-java
8.0.26
org.springframework.boot
spring-boot-starter-data-jpa
属性文件 spring-quartz.properties
#============================================================================
# 配置JobStore
#============================================================================
# JobDataMaps是否都为String类型,默认false
org.quartz.jobStore.useProperties=false
# 表的前缀,默认QRTZ_
org.quartz.jobStore.tablePrefix = QRTZ_
# 是否加入集群
org.quartz.jobStore.isClustered = true
# 调度实例失效的检查时间间隔 ms
org.quartz.jobStore.clusterCheckinInterval = 5000
# 当设置为“true”时,此属性告诉Quartz 在非托管JDBC连接上调用setTransactionIsolation(Connection.TRANSACTION_READ_COMMITTED)。
org.quartz.jobStore.txIsolationLevelReadCommitted = true
# 数据保存方式为数据库持久化
org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
# 数据库代理类,一般org.quartz.impl.jdbcjobstore.StdJDBCDelegate可以满足大部分数据库
org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#============================================================================
# Scheduler 调度器属性配置
#============================================================================
# 调度标识名 集群中每一个实例都必须使用相同的名称
org.quartz.scheduler.instanceName = ClusterQuartz
# ID设置为自动获取 每一个必须不同
org.quartz.scheduler.instanceId= AUTO
#============================================================================
# 配置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)
org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
# 指定线程数,一般设置为1-100直接的整数,根据系统资源配置
org.quartz.threadPool.threadCount = 5
# 设置线程的优先级(可以是Thread.MIN_PRIORITY(即1)和Thread.MAX_PRIORITY(这是10)之间的任何int 。默认值为Thread.NORM_PRIORITY(5)。)
org.quartz.threadPool.threadPriority = 5
配置文件application.properties
server.context-path=/quartz-cluster2
#\u7AEF\u53E3\u53F7
server.port=8083
# \u6570\u636E\u6E90\u914D\u7F6E
spring.datasource.url=jdbc:mysql://localhost:3306/study?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.max-active=1000
spring.datasource.max-idle=20
spring.datasource.min-idle=5
spring.datasource.initial-size=10
job 类QuartzJob
package com.example.bootquartz;
import org.quartz.DisallowConcurrentExecution;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.PersistJobDataAfterExecution;
import org.springframework.scheduling.quartz.QuartzJobBean;
import java.util.Date;
@PersistJobDataAfterExecution
@DisallowConcurrentExecution
public class QuartzJob extends QuartzJobBean {
@Override
protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
try {
Thread.sleep(2000);
System.out.println(context.getScheduler().getSchedulerInstanceId());
System.out.println("taskname="+context.getJobDetail().getKey().getName());
System.out.println("执行时间="+new Date());
} catch (Exception e) {
e.printStackTrace();
}
}
}
调度器 SchedulerConfig
package com.example.bootquartz;
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.SchedulerFactoryBean;
import javax.sql.DataSource;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.Executor;
@Configuration
public class SchedulerConfig {
@Autowired
private DataSource dataSource;
@Bean
public Scheduler scheduler() throws IOException {
return schedulerFactoryBean().getScheduler();
}
@Bean
public SchedulerFactoryBean schedulerFactoryBean() throws IOException {
SchedulerFactoryBean factory = new SchedulerFactoryBean();
factory.setSchedulerName("cluster_scheduler");
factory.setDataSource(dataSource);
factory.setApplicationContextSchedulerContextKey("application");
factory.setQuartzProperties(quartzProperties());
factory.setTaskExecutor(schedulerThreadPool());
factory.setStartupDelay(0);
return factory;
}
@Bean
public Properties quartzProperties() throws IOException {
PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
propertiesFactoryBean.setLocation(new ClassPathResource("/spring-quartz.properties"));
propertiesFactoryBean.afterPropertiesSet();
return propertiesFactoryBean.getObject();
}
@Bean
public Executor schedulerThreadPool(){
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(Runtime.getRuntime().availableProcessors());
executor.setMaxPoolSize(Runtime.getRuntime().availableProcessors());
executor.setQueueCapacity(Runtime.getRuntime().availableProcessors());
return executor;
}
}
监听器 StartApplicationListener
package com.example.bootquartz;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
@Component
public class StartApplicationListener implements ApplicationListener {
@Autowired
private Scheduler scheduler;
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
try {
TriggerKey triggerKey = TriggerKey.triggerKey("trigger1","group1");
Trigger trigger = scheduler.getTrigger(triggerKey);
if(trigger == null){
trigger = TriggerBuilder.newTrigger()
.withIdentity(triggerKey)
.withSchedule(CronScheduleBuilder.cronSchedule("0/10 * * * * ?"))
.startNow()
.build();
JobDetail jobDetail = JobBuilder.newJob(QuartzJob.class)
.withIdentity("job1","group1")
.build();
scheduler.scheduleJob(jobDetail,trigger);
}
TriggerKey triggerKey2 = TriggerKey.triggerKey("trigger2","group2");
Trigger trigger2 = scheduler.getTrigger(triggerKey2);
if(trigger2 == null) {
trigger2 = TriggerBuilder.newTrigger()
.withIdentity(triggerKey2)
.withSchedule(CronScheduleBuilder.cronSchedule("0/10 * * * * ?"))
.startNow()
.build();
JobDetail jobDetail2 = JobBuilder.newJob(QuartzJob.class)
.withIdentity("job2", "group2")
.build();
scheduler.scheduleJob(jobDetail2, trigger2);
}
scheduler.start();
} catch (SchedulerException e) {
e.printStackTrace();
}
}
}