如何利用Redis和Java实现分布式任务调度功能

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

public class TaskScheduler {
    private JedisPool jedisPool;

    public TaskScheduler(JedisPool jedisPool) {
        this.jedisPool = jedisPool;
    }

    public void scheduleTask(String task) {
        try (Jedis jedis = jedisPool.getResource()) {
            // 将任务添加到任务队列
            jedis.rpush("task_queue", task);
        }
    }

    public void startWorkers(int numWorkers) {
        for (int i = 0; i < numWorkers; i++) {
            new Thread(new TaskWorker(jedisPool)).start();
        }
    }
}

public class TaskWorker implements Runnable {
    private JedisPool jedisPool;

    public TaskWorker(JedisPool jedisPool) {
        this.jedisPool = jedisPool;
    }

    @Override
    public void run() {
        try (Jedis jedis = jedisPool.getResource()) {
            while (true) {
                // 从任务队列获取任务
                String task = jedis.lpop("task_queue");
                if (task != null) {
                    // 执行任务
                    processTask(task);
                }
            }
        }
    }

    private void processTask(String task) {
        // 执行任务的逻辑
        System.out.println("Processing task: " + task);
    }
}

public class Main {
    public static void main(String[] args) {
        // 创建Redis连接池
        JedisPool jedisPool = new JedisPool("localhost", 6379);

        // 创建任务调度器
        TaskScheduler taskScheduler = new TaskScheduler(jedisPool);

        // 添加任务
        taskScheduler.scheduleTask("Task 1");
        taskScheduler.scheduleTask("Task 2");
        taskScheduler.scheduleTask("Task 3");

        // 启动任务消费者
        taskScheduler.startWorkers(3);
    }
}