JavaredisTemplate阻塞式处理消息队列

package cn.stylefeng.guns.knowledge.modular.knowledge.schedule;

import lombok.extern.slf4j.Slf4j;
import org.springframework.data.redis.core.RedisTemplate;

import java.util.Random;
import java.util.UUID;


@Slf4j
public class QueueProducer implements Runnable {

    
    public static final String QUEUE_PRODUCTER = "queue-producter";

    private RedisTemplate<String, Object> redisTemplate;

    public QueueProducer(RedisTemplate<String, Object> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    @Override
    public void run() {
        Random random = new Random();
        while (true) {
            try {
                Thread.sleep(random.nextInt(600) + 600);
                // 1.模拟生成一个任务
                UUID queueProducerId = UUID.randomUUID();
                // 2.将任务插入任务队列：queue-producter
                redisTemplate.opsForList().leftPush(QUEUE_PRODUCTER, queueProducerId.toString());
                log.info("生产一条数据 >>> {}", queueProducerId.toString());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

package cn.stylefeng.guns.knowledge.modular.knowledge.schedule;

import lombok.extern.slf4j.Slf4j;
import org.springframework.data.redis.core.RedisTemplate;

import java.util.Random;


@Slf4j
public class QueueConsumer implements Runnable {
    public static final String QUEUE_PRODUCTER = "queue-producter";
    public static final String TMP_QUEUE = "tmp-queue";

    private RedisTemplate<String, Object> redisTemplate;

    public QueueConsumer(RedisTemplate<String, Object> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    
    @Override
    public void run() {
        Random random = new Random();
        while (true) {
            // 1.从任务队列"queue-producter"中获取一个任务，并将该任务放入暂存队列"tmp-queue"
            Long ququeConsumerId = redisTemplate.opsForList().rightPush(QUEUE_PRODUCTER, TMP_QUEUE);
            // 2.处理任务----纯属业务逻辑，模拟一下：睡觉
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            // 3.模拟成功和失败的偶然现象,模拟失败的情况,概率为2/13
            if (random.nextInt(13) % 7 == 0) {
                // 4.将本次处理失败的任务从暂存队列"tmp-queue"中，弹回任务队列"queue-producter"
                redisTemplate.opsForList().rightPush(TMP_QUEUE, QUEUE_PRODUCTER);
                log.info(ququeConsumerId + "处理失败，被弹回任务队列");
            } else {
                // 5. 模拟成功的情况,将本次任务从暂存队列"tmp-queue"中清除
                redisTemplate.opsForList().rightPop(TMP_QUEUE);
                log.info(ququeConsumerId + "处理成功，被清除");
            }
        }
    }
}

    @Test
    public void QueueThreadTotalEntry() throws Exception {
        // 1.启动一个生产者线程，模拟任务的产生
        new Thread(new QueueProducer(redisTemplate)).start();
        Thread.sleep(15000);
        // 2.启动一个线程者线程，模拟任务的处理
        new Thread(new QueueConsumer(redisTemplate)).start();
        // 3.主线程
        Thread.sleep(Long.MAX_VALUE);
    }

Long increment = redisTemplate.opsForValue().increment("increment", 1L);
            log.info("队列消费者 >> increment递增: {}", increment);

Long increment = redisTemplate.opsForValue().increment("increment", 1L);
            log.info("生产者队列 >> increment递增: {}", increment);

@Component
public class RedisQueue {
    @Autowired
    private RedisTemplate redisTemplate;
 
 
    
    
    public boolean lpush(String key, Object value) {
        try {
            redisTemplate.opsForList().leftPush(key, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }
 
    
    public Object rpop(String key) {
        try {
            return redisTemplate.opsForList().rightPop(key);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
 
    
    public Object brpop(String key, long timeout, TimeUnit timeUnit) {
        try {
            return redisTemplate.opsForList().rightPop(key, timeout, timeUnit);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
 
    
    public List<Object> lrange(String key, long start, long end) {
        try {
            return redisTemplate.opsForList().range(key, start, end);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
 
}