SpringBoot学习-简单QuartZ定时器设置

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上一篇说明了一下Spring自带的定时器设置，这一件就简单叙述一下QuartZ的配置过程。
首先是新建一个QuartZ的配置文件-quartz.properties：

org.quartz.scheduler.instanceName = MyScheduler
org.quartz.threadPool.threadCount = 1
org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore
org.quartz.plugin.jobInitializer.class =org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin
org.quartz.plugin.jobInitializer.fileNames =init/quartz_data_jobs.xml
org.quartz.plugin.jobInitializer.failOnFileNotFound = true

再新建一个XML文件用于存放定时执行的Job信息-quartz_data_jobs.xml:

<?xml version="1.0" encoding="UTF-8"?>
<job-scheduling-data
        xmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData
        http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd"
        version="1.8">

    <schedule>
        <job>
            <name>FirstJob</name>
            <group>DummyGroup</group>
            <description>This is FirstJob</description>
            <job-class>com.example.demo.quartz.TestJob2</job-class>
        </job>
        <trigger>
            <cron>
                <name>dummyTrigger</name>
                <job-name>FirstJob</job-name>
                <job-group>DummyGroup</job-group>
                <!-- It will run every 2 seconds -->
                <cron-expression>0/2 * * * * ?</cron-expression>
            </cron>
        </trigger>
    </schedule>
</job-scheduling-data>

创建需要执行的Job类-TestJob2：

package com.example.demo.quartz;

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

import java.util.Date;

public class TestJob2 implements Job {
    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        System.out.println("正在执行定时任务:"+new Date());
    }
}

最后是创建一个配置类，用于QuartZ的启动配置-QuartZConfig:

package com.example.demo.quartz;

import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class QuartZConfig {

    private ApplicationContext applicationContext;

    /**
     * quartz 启动配置
     */
    @Bean
    public SchedulerFactory quartz() throws SchedulerException {
        // Creating scheduler factory and scheduler
        SchedulerFactory factory = new StdSchedulerFactory("quartz.properties");
        Scheduler scheduler = factory.getScheduler();
        scheduler.start();
        return factory;
    }
}

执行结果如下：

可以看到定时任务正常执行了。

补充maven引包：

<!--QuartZ定时任务-->
<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
    <version>2.2.1</version>
</dependency>
<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz-jobs</artifactId>
    <version>2.2.1</version>
</dependency>