如何实现Java后端功能开发中的定时任务？

import java.util.Timer;
import java.util.TimerTask;

public class TimerExample {
    public static void main(String[] args) {
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
            @Override
            public void run() {
                // 定时任务的具体逻辑
                System.out.println("定时任务执行了");
            }
        }, 0, 1000); // 每隔1秒执行一次任务
    }
}

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class ScheduledExecutorServiceExample {
    public static void main(String[] args) {
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
        executor.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                // 定时任务的具体逻辑
                System.out.println("定时任务执行了");
            }
        }, 0, 1, TimeUnit.SECONDS); // 每隔1秒执行一次任务
    }
}

import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;

@EnableScheduling
public class ScheduledTaskExample {
    @Scheduled(fixedRate = 1000) // 每隔1秒执行一次任务
    public void scheduledTask() {
        // 定时任务的具体逻辑
        System.out.println("定时任务执行了");
    }
}