[框架]Spring整合Quartz(任务调度框架)

了解了什么是任务调度和任务调度框架的基本使用,我们需要将任务调度框架整合到Spring工厂,简化开发流程,避免复杂的关联关系和依赖关系,降低类和类之间的耦合度.

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Spring整合Quartz

导入依赖

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>4.2.4.RELEASEversion>
        dependency>
    	<dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-txartifactId>
            <version>4.2.4.RELEASEversion>
        dependency>
        
        <dependency>
            <groupId>org.quartz-schedulergroupId>
            <artifactId>quartzartifactId>
            <version>2.2.1version>
        dependency>

定制一个Job

package per.leiyu.job;

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

import java.util.Date;

/**
 * @author 雷雨
 * @date 2020/6/28 8:32
 */
public class MyJob implements Job {
    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        System.out.println("Spring 整合Quartz"+new Date());

    }
}

在Spring工厂中配置

• JobDetail:JobDetailFactoryBean
• 触发器:CronTriggerFactoryBean
• 调度器:SchedulerFactoryBean

Spring 整合Quartz进行配置遵循下面的步骤:

1. 定义工作任务的job
2. 定义触发器Trigger,并将触发器和工作任务绑定
3. 定义调度器,并将Trigger注册到Scheduler

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
              http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">



    <bean id="lxJob" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
        
        <property name="name" value="job1">property>
        
        <property name="group" value="job_group1">property>
        
        <property name="jobClass" value="per.leiyu.job.MyJob">property>
    bean>

    
    <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        
        <property name="name" value="trigger1"/>
        
        <property name="group" value="trigger_group1"/>
        
        <property name="jobDetail" ref="lxJob"/>
        
        <property name="cronExpression" value="*/2 * * * * ?"/>
    bean>

    
    <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="cronTrigger">ref>
            list>
        property>
        
        

        
        <property name="quartzProperties">
            <value>
                #名为:quartz.properties ,放置在classpath下,如果没有此配置则按默认配置启动
                # 指定调度器名称,非实现类
                org.quarz.scheduler.instanceName=DefaultQuartzScheduler
                #指定线程池实现类
                org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
                #线程池线程数量
                org.quartz.threadPool.threadCount=10
                #优先级,默认5
                org.quartz,threadPool.threadPriority= 5
                #非持久化job
                org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore
            value>
        property>
    bean>
beans>

操作

启动任务

工厂启动,调度器启动,任务调度开始

工厂关闭,任务停止

package per.leiyu;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * @author 雷雨
 * @date 2020/6/28 8:49
 */
public class TestMyJob {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("/springcontext.xml");

    }
}

结果

任务操作

删除任务

Job任务还是两秒执行一次,睡眠5秒之后想要将其删除(删除任务)

• deleteJob(Jobkey.jobkey(任务名,任务组别))

public class TestMyJob {
    public static void main(String[] args) throws InterruptedException, SchedulerException {
        ApplicationContext context = new ClassPathXmlApplicationContext("/springcontext.xml");
        Thread.sleep(5000);
        Scheduler scheduler = (Scheduler) context.getBean("scheduler");
        scheduler.deleteJob(JobKey.jobKey("job1","job_group1"));

    }
}

删除任何执行结果

暂停和恢复

public class TestMyJob {
    public static void main(String[] args) throws InterruptedException, SchedulerException {
        ApplicationContext context = new ClassPathXmlApplicationContext("/springcontext.xml");
        Thread.sleep(5000);
        Scheduler scheduler = (Scheduler) context.getBean("scheduler");
        //scheduler.deleteJob(JobKey.jobKey("job1","job_group1"));
		//暂停
        scheduler.pauseJob(JobKey.jobKey("job1","job_group1"));
        Thread.sleep(5000);
        //恢复任务
        scheduler.resumeJob(JobKey.jobKey("job1","job_group1"));

    }
}

暂停和恢复执行结果

批量操作

因为Job任务是有分组的,可以通过操作同一个组中的任务达到批量操作的目的

• 注意暂停和恢复支持批量操作
• 但是删除不支持批量操作(删除操作比较敏感)

public class TestMyJob {
    public static void main(String[] args) throws InterruptedException, SchedulerException {
        ApplicationContext context = new ClassPathXmlApplicationContext("/springcontext.xml");
        Thread.sleep(5000);
        StdScheduler scheduler = (StdScheduler) context.getBean("scheduler");
        scheduler.pauseJobs(GroupMatcher.groupEquals("job_group1"));
        Thread.sleep(5000);
        scheduler.resumeJobs(GroupMatcher.groupEquals("job_group1"));

    }
}

批量操作执行结果

我是雷雨,一个普本科的学生,主要专注于Java后端和大数据开发

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转载注明出处
https://blog.csdn.net/qq_40742223