Java怎么使用quartz实现定时任务

sue.spring.quartz.cron=*/5 * * * * ?

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

package com.luke.demo.schedule;
import org.quartz.*;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class QuartzConfig {
    @Value("${sue.spring.quartz.cron}")
    private String testCron;
    /**
     * 创建定时任务
     */
    @Bean
    public JobDetail quartzTestDetail() {
        JobDetail jobDetail = JobBuilder.newJob(QuartzTestJob.class)
                //添加认证信息
                .withIdentity("quartzTestDetail", "QUARTZ_TEST")
                .build();
        return jobDetail;
    }
    /**
     * 创建触发器
     */
    @Bean
    public Trigger quartzTestJobTrigger() {
        //执行频率
        CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(testCron);
        //创建触发器
        Trigger trigger = TriggerBuilder.newTrigger()
                .forJob(quartzTestDetail())
                //添加认证信息
                .withIdentity("quartzTestJobTrigger", "QUARTZ_TEST_JOB_TRIGGER")
                //添加执行规则
                .withSchedule(cronScheduleBuilder)
                .build();
        return trigger;
    }
}

public class QuartzTestJob extends QuartzJobBean {
    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
        System.out.println("现在是"+ new Date());
    }
}