版权声明：转发请注明，谢谢配合 https://blog.csdn.net/qq_31289187/article/details/84953628
现在有很多任务调度框架，比如Jfinal-Quartz、elastic-job、EasySchedule 、Quartz 等，最常用的就是Quartz 和elastic-job，这两个框架各有各的好处，Quartz 可以满足复杂的任务调度，并且spring框架对Quartz也有非常好的支持，而elastic-job有elastic-job-console这个控制台，非常方便去调度任务，比如暂停，生效，随时修改job执行时间等。下面是springBoot整合Quartz的小案例（仅供参考）
具体步骤
1、springBoot启动之后，读取数据库中配置的任务；
2、根据数据库配置的任务名、具体类名，执行时间创建任务；
3、加入调度容器，最后启动容器调度任务。
1、引入jar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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cn.dl</groupId>
<artifactId>springbootquartz</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springbootquartz</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<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>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.46</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.9</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2、TaskJobBean
package com.cn.dl.bean;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* Created by yanshao on 2018/12/11.
*/
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class TaskJobBean {
//todo 实际开发还有很多属性!!!
private String jobName;
private String jobClassName;
private String jobCron;
}
3、创建表并插入三条数据
CREATE TABLE task_job_schedule (
id bigint(20) NOT NULL AUTO_INCREMENT COMMENT '自增id',
job_name varchar(64) COLLATE utf8mb4_bin NOT NULL DEFAULT '' COMMENT '任务名',
job_class_name varchar(256) COLLATE utf8mb4_bin NOT NULL DEFAULT '' COMMENT '任务类名',
job_cron varchar(32) COLLATE utf8mb4_bin NOT NULL DEFAULT '' COMMENT 'cron表达式,执行时间',
dt_create datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
dt_update datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
PRIMARY KEY (id)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='任务调度表'
insert into task_job_schedule (id, job_name, job_class_name, job_cron, dt_create, dt_update) values('1','jobA','com.cn.dl.task.JobA','0/5 * * * * ? *','2018-12-11 11:34:25','2018-12-11 11:34:25');
insert into task_job_schedule (id, job_name, job_class_name, job_cron, dt_create, dt_update) values('2','jobB','com.cn.dl.task.JobB','0 0 04 * * ? *','2018-12-11 11:34:29','2018-12-11 11:34:29');
insert into task_job_schedule (id, job_name, job_class_name, job_cron, dt_create, dt_update) values('3','jobC','com.cn.dl.task.JobC','0/30 * * * * ? *','2018-12-11 11:34:44','2018-12-11 11:34:44');
4、TaskJobMapper
package com.cn.dl.mapper;
import com.cn.dl.bean.TaskJobBean;
import org.apache.ibatis.annotations.*;
import java.util.List;
/**
* Created by yanshao on 2018/12/11.
*/
@Mapper
public interface TaskJobMapper {
@Select("select job_name,job_class_name,job_cron from task_job_schedule")
List<TaskJobBean> findAllTaskJob();
}
5、InitTaskJobConfig
package com.cn.dl.config;
import com.cn.dl.bean.TaskJobBean;
import com.cn.dl.mapper.TaskJobMapper;
import lombok.extern.slf4j.Slf4j;
import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.triggers.CronTriggerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import java.util.List;
/**
* Created by yanshao on 2018/12/11.
*/
@Component
@Order(value = 2)
@Slf4j
public class InitTaskJobConfig implements CommandLineRunner {
@Autowired
TaskJobMapper taskJobMapper;
@Override
public void run(String... strings) throws Exception {
//读取所有任务
List<TaskJobBean> list = taskJobMapper.findAllTaskJob();
//创建调度容器
Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
list.stream().forEach(taskJobBean -> {
try {
System.out.println(taskJobBean.toString());
//创建具体的可执行的调度程序
JobDetail jobDetail = JobBuilder.newJob((Class<? extends Job>) Class.forName(taskJobBean.getJobClassName())).build();
//设置调度参数
CronTriggerImpl cronTrigger = new CronTriggerImpl();
cronTrigger.setName(taskJobBean.getJobName());
cronTrigger.setCronExpression(taskJobBean.getJobCron());
//加入调度容器
scheduler.scheduleJob(jobDetail, cronTrigger);
//启动
scheduler.start();
} catch (Exception e) {
log.error("job 启动异常",e);
}
});
}
}
6、创建三个任务类：JobA、JobB、JobC
package com.cn.dl.task;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import java.util.Date;
/**
* Created by yanshao on 2018/12/11.
*/
public class JobA implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
System.out.println("JobA>>>>>>"+new Date());
}
}
其它两个类类似JobA
7、application.properties
#redis
spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=tiger
#mybatis
#开启mybatis驼峰命名，这样可以将mysql中带有下划线的映射成驼峰命名的字段
mybatis.configuration.map-underscore-to-camel-case=true
#datasource
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/tiger_base?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&autoReconnect=true&generateSimpleParameterMetadata=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.max-idle=10
spring.datasource.max-wait=60000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
spring.datasource.validationQuery=select 'x'
8、启动SpringbootquartzApplication看结果：三个job都按照配置的调度时间执行
TaskJobBean(jobName=jobA, jobClassName=com.cn.dl.task.JobA, jobCron=0/5 * * * * ? *)
2018-12-11 14:04:46.168 INFO 41948 --- [ main] org.quartz.core.QuartzScheduler : Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
TaskJobBean(jobName=jobB, jobClassName=com.cn.dl.task.JobB, jobCron=0 0 04 * * ? *)
2018-12-11 14:04:46.170 INFO 41948 --- [ main] org.quartz.core.QuartzScheduler : Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
TaskJobBean(jobName=jobC, jobClassName=com.cn.dl.task.JobC, jobCron=0/30 * * * * ? *)
2018-12-11 14:04:46.172 INFO 41948 --- [ main] org.quartz.core.QuartzScheduler : Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started.
JobA>>>>>>Tue Dec 11 14:04:50 CST 2018
JobA>>>>>>Tue Dec 11 14:04:55 CST 2018
JobA>>>>>>Tue Dec 11 14:05:00 CST 2018
JobC>>>>>>Tue Dec 11 14:05:00 CST 2018
JobA>>>>>>Tue Dec 11 14:05:05 CST 2018
JobA>>>>>>Tue Dec 11 14:05:10 CST 2018
JobA>>>>>>Tue Dec 11 14:05:15 CST 2018
JobA>>>>>>Tue Dec 11 14:05:20 CST 2018
JobA>>>>>>Tue Dec 11 14:05:25 CST 2018
JobA>>>>>>Tue Dec 11 14:05:30 CST 2018
JobC>>>>>>Tue Dec 11 14:05:30 CST 2018
JobA>>>>>>Tue Dec 11 14:05:35 CST 2018
JobA>>>>>>Tue Dec 11 14:05:40 CST 2018
JobA>>>>>>Tue Dec 11 14:05:45 CST 2018以上就是springBoot和Quartz整合的小案例，里面还有很多细节问题需要注意（不能共享我们实际生产的源代码，请见谅），但是大体流程还是可以借鉴的，毕竟经过实践验证。