【spring boot】2.0 redis发布订阅

一·引入依赖

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
           

二·配置文件

spring:
  redis:
    host: redis
    port: 6379
    timeout: 3000
    password: ""
           

三·开发

1·redis发布订阅配置类 RedisSubListenerConfig

listenerAdapter 构造适配器 以及 指定 listener 接收消息的方法

RedisMessageListenerContainer 对 topic 添加 监听适配器

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.listener.PatternTopic;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.listener.adapter.MessageListenerAdapter;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * 说明:
 *
 * @version V1.0
 * @since 2019.4.25
 */
@Configuration
public class RedisSubListenerConfig {

    @Autowired
    private JedisConnectionFactory jedisConnectionFactory;

    @Bean
    RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory, MessageListenerAdapter listenerAdapter) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        container.addMessageListener(listenerAdapter, new PatternTopic(VideoConstant.TOPIC_VIDEO));
        return container;
    }

    @Bean
    MessageListenerAdapter listenerAdapter(HandlerService handlerService ) {
        return new MessageListenerAdapter(handlerService , "receive");
    }

    @Bean
    StringRedisTemplate template(RedisConnectionFactory connectionFactory) {
        return new StringRedisTemplate(connectionFactory);
    }

    @Bean
    public RedisTemplate<String, String> redisTemplateString() {
        RedisTemplate<String, String> template = new RedisTemplate<>();
        template.setConnectionFactory(jedisConnectionFactory);
        template.setKeySerializer(new StringRedisSerializer());
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(new StringRedisSerializer());
        return template;
    }
}
           

2·HandlerService 自己编写实现类 实现接收到消息 对消息的处理逻辑

public interface HandlerService {

    /**
     * 接收消息
     */
    void receive(String map);

}

           

3·发送消息

@Autowired
private RedisTemplate<String, String> redisTemplateString;

redisTemplate.convertAndSend(topic, msg);