springboot + quartz 实现简单的定时任务

首先引入quartz的依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-quartz</artifactId>
</dependency>

首先在启动类上加上@EnableScheduling注解

@SpringBootApplication
@EnableScheduling
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

编写测试Job类，让他继承QuartzJobBean类，并且重写方法

package com.example.demo.job;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class MyTestJob extends QuartzJobBean {
    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
       //todo 要定时执行的逻辑代码
    }
}

编写配置类

package com.example.demo.config;

import com.example.demo.job.MyTestJob;
import org.quartz.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class JobConfig {
    @Bean
    public JobDetail testJobDetails(){
        JobDetail jobDetail = JobBuilder.newJob(MyTestJob.class).storeDurably().build();
        return jobDetail;
    }
    @Bean
    public Trigger testTrigger(){
//任务的执行频率，cron表达式
        CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * * ?");
        Trigger trigger = TriggerBuilder.newTrigger().forJob(testJobDetails()).withSchedule(scheduleBuilder).build();
        return trigger;
    }
}

这样就实现了一个简单的定时任务