netty linux 定时器

import io.netty.util.HashedWheelTimer;
import io.netty.util.Timeout;
import io.netty.util.TimerTask;

public class TimerExample {
    public static void main(String[] args) {
        HashedWheelTimer timer = new HashedWheelTimer();

        TimerTask task = new TimerTask() {
            @Override
            public void run(Timeout timeout) throws Exception {
                System.out.println("Task executed at: " + System.currentTimeMillis());
            }
        };

        // 延迟 5 秒执行一次任务，每隔 10 秒重复执行
        timer.newTimeout(task, 5, TimeUnit.SECONDS);
    }
}

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

public class ScheduledExecutorExample {
    public static void main(String[] args) {
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);

        Runnable task = () -> System.out.println("Task executed at: " + System.currentTimeMillis());

        // 延迟 5 秒执行一次任务，每隔 10 秒重复执行
        executor.scheduleAtFixedRate(task, 5, 10, TimeUnit.SECONDS);
    }
}