Spring Boot 基于Redis 实现消息发布与订阅

消息队列有两种场景，一种是发布者订阅者模式，一种是生产者消费者模式。利用redis这两种场景的消息队列都能够实现

基于 spring-boot-starter-data-redis 可以很方便的实现

• 首先引入依赖

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

• 配置主题订阅,监听redis-topic-0与redis-topic-0两个topic

    @Bean
    public RedisMessageListenerContainer container(RedisConnectionFactory redisConnectionFactory,
                                                   MessageListenerAdapter listenerAdapter) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(redisConnectionFactory);
        List topics = Arrays.asList(
                PatternTopic.of("redis-topic-0"),
                PatternTopic.of("redis-topic-1")
        );
        container.addMessageListener(listenerAdapter, topics);
        return container;
    }

• 编写消息监听类

@Service
public class RedisReceiver {
    public void handleMessage(String message) {
        System.out.println("message:" + message);
    }

    public void handleMessage(String message, String topic) {
        System.out.println("message:" + message + " ,topic: " + topic);
    }
}

• 配置消息监听的Adapter

@Bean
    public MessageListenerAdapter listenerAdapter(RedisReceiver redisReceiver, Jackson2JsonRedisSerializer