@SpringBootApplication
@MapperScan("com.shoanjen.redis.mapper")
@EnableScheduling
public class RedisApplication {
	public static void main(String[] args) {
		SpringApplication.run(RedisApplication.class, args);
	}
}

@Component
public class ScheduleService {
    @Scheduled(fixedRate = 5000)
    //@Scheduled(fixedDelay = 5000)
    public void scheduleConsole(){
        System.out.println("定時(shí)任務(wù)要開始了喲?。。?！");
    }
}

<!-- Spring Mail依賴 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

spring.mail.host=smtp.126.com
spring.mail.username=XXXXXX@126.com
spring.mail.password=這里就是你剛剛的授權(quán)碼喲！

@Component
public class ScheduleService {
    @Autowired
    private JavaMailSender mailSender;
    @Scheduled(cron = "0 34 21 * * ?")
    public void scheduleMailTo(){
        SimpleMailMessage message = new SimpleMailMessage();
        //隨機(jī)驗(yàn)證碼
        Random random=new Random();
        int code=random.nextInt(9999)+1;
        // 發(fā)件人，配置文件中的郵件地址
        message.setFrom("xxxxx@126.com");
        // 收件人
        message.setTo("xxxxx@163.com");
        //設(shè)置郵件標(biāo)題
        message.setSubject("注冊(cè)驗(yàn)證碼");
        // 郵件內(nèi)容
        message.setText("Hello歡迎使用xxx系統(tǒng)，您的注冊(cè)驗(yàn)證碼為"+code);
        mailSender.send(message);
        System.out.println("郵件發(fā)送已完成哦?。?！");
    }
}