这篇文章主要讲述如何在springboot中用reids实现消息队列。

准备阶段

安装redis,可参考我的另一篇文章，5分钟带你入门Redis。java 1.8maven 3.0idea

环境依赖

创建一个新的springboot工程，在其pom文件,加入spring-boot-starter-data-redis依赖：

        
     
      org.springframework.boot
         
     
      spring-boot-starter-data-redis
     
    

创建一个消息接收者

REcevier类，它是一个普通的类，需要注入到springboot中。

public class Receiver {    private static final Logger LOGGER = LoggerFactory.getLogger(Receiver.class);    private CountDownLatch latch;    @Autowired    public Receiver(CountDownLatch latch) {        this.latch = latch;    }    public void receiveMessage(String message) {        LOGGER.info("Received <" + message + ">");        latch.countDown();    }}

注入消息接收者

@BeanReceiver receiver(CountDownLatch latch) {    return new Receiver(latch);}@BeanCountDownLatch latch() {    return new CountDownLatch(1);}@BeanStringRedisTemplate template(RedisConnectionFactory connectionFactory) {    return new StringRedisTemplate(connectionFactory);}

注入消息监听容器

在spring data redis中，利用redis发送一条消息和接受一条消息，需要三样东西：

一个连接工厂一个消息监听容器Redis template

上述1、3步已经完成，所以只需注入消息监听容器即可：

@Bean    RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory,                                            MessageListenerAdapter listenerAdapter) {        RedisMessageListenerContainer container = new RedisMessageListenerContainer();        container.setConnectionFactory(connectionFactory);        container.addMessageListener(listenerAdapter, new PatternTopic("chat"));        return container;    }   @Bean    MessageListenerAdapter listenerAdapter(Receiver receiver) {        return new MessageListenerAdapter(receiver, "receiveMessage");    }

测试

在springboot入口的main方法：

public static void main(String[] args) throws Exception{        ApplicationContext ctx =  SpringApplication.run(SpringbootRedisApplication.class, args);        StringRedisTemplate template = ctx.getBean(StringRedisTemplate.class);        CountDownLatch latch = ctx.getBean(CountDownLatch.class);        LOGGER.info("Sending message...");        template.convertAndSend("chat", "Hello from Redis!");        latch.await();        System.exit(0);    }

先用redisTemplate发送一条消息，接收者接收到后，打印出来。启动springboot程序，控制台打印：

2017-04-20 17:25:15.536 INFO 39148 — [ main] com.forezp.SpringbootRedisApplication : Sending message…2017-04-20 17:25:15.544 INFO 39148 — [ container-2] com.forezp.message.Receiver : 》Received

源码下载：

参考资料