在Spring Boot中我們可以使用@Scheduled註解實現定時任務

import java.text.SimpleDateFormat;
import java.util.Date;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class ScheduledTasks
 
 {

    private static final Logger log = LoggerFactory.getLogger(ScheduledTasks.class);

    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");

    @Scheduled(fixedRate = 5000)
    public void reportCurrentTime() {
        log.info("The time is now {}", dateFormat.format(new
 
 Date()));
    }
}

註解引數包括：

• fixedRate
• fixedDelay

• cron=”…”

  可在配置檔案中引數化任務啟動間隔、啟動引數

 @Scheduled(cron="${scheduled.repays}")