nodejs redis 发布订阅_太赞了：Spring boot+redis实现消息发布与订阅

一．创建spring boot项目

org.springframework.boot spring-boot-starter-data-redis org.springframework.boot spring-boot-starter-web com.alibaba fastjson 1.2.41

二．编辑yml配置文件

server: port: 7888# 日志配置logging: config: classpath:log/logback.xml level: .dhcc: info org.springframework: info org.springframework.web: info com.alibaba.nacos.client.naming: errorspring: redis:host: localhostport: 6379password: *********database: 1jedis:pool: max-idle: 8 max-active: 8 max-wait: -1 min-idle: 0timeout: 5000

三．配置Redis

@Configurationpublic class RedisConfiguration { /*** 实例化 RedisTemplate 对象** @return*/ @Bean("RedisTemplateS") public RedisTemplate functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) { RedisTemplate redisTemplate = new RedisTemplate<>(); initDomainRedisTemplate(redisTemplate, redisConnectionFactory); return redisTemplate; } /*** 设置数据存入 redis 的序列化方式,并开启事务** @param redisTemplate* @param factory*/ private void initDomainRedisTemplate(@Qualifier("RedisTemplateS") RedisTemplate redisTemplate, RedisConnectionFactory factory) { // 如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to // String！ redisTemplate.setKeySerializer(new StringRedisSerializer()); redisTemplate.setHashKeySerializer(new StringRedisSerializer()); FastJsonRedisSerializer fastJsonRedisSerializer = new FastJsonRedisSerializer(Object.class); redisTemplate.setHashValueSerializer(fastJsonRedisSerializer); redisTemplate.setValueSerializer(fastJsonRedisSerializer); //redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer()); //redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer()); // 开启事务 redisTemplate.setEnableTransactionSupport(true); redisTemplate.setConnectionFactory(factory); } /*** 注入封装RedisTemplate @Title: redisUtil @return RedisUtil @date**/ @Bean(name = "redisUtils") public RedisUtils redisUtil(@Qualifier("RedisTemplateS") RedisTemplate redisTemplate) { RedisUtils redisUtil = new RedisUtils(); redisUtil.setRedisTemplate(redisTemplate); return redisUtil; }

四．编写RedisUtil消息发布方法

public class RedisUtils { private static final Logger log = LoggerFactory.getLogger(RedisUtils.class); private RedisTemplate redisTemplate; public void setRedisTemplate(RedisTemplate redisTemplate) { this.redisTemplate = redisTemplate; } public void publish(String channal ,Object obj) { redisTemplate.convertAndSend(channal,obj ); }}

五．配置消息监听

@Configurationpublic class RedisMessageListener { /*** 创建连接工厂* @param connectionFactory* @param listenerAdapter* @return*/ @Bean public RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory, MessageListenerAdapter listenerAdapter,MessageListenerAdapter listenerAdapter2){ RedisMessageListenerContainer container = new RedisMessageListenerContainer(); container.setConnectionFactory(connectionFactory); //接受消息的key container.addMessageListener(listenerAdapter,new PatternTopic("phone")); return container; } /*** 绑定消息监听者和接收监听的方法* @param receiver* @return*/ @Bean public MessageListenerAdapter listenerAdapter(ReceiverRedisMessage receiver){ return new MessageListenerAdapter(receiver,"receiveMessage"); } /*** 注册订阅者* @param latch* @return*/ @Bean ReceiverRedisMessage receiver(CountDownLatch latch) { return new ReceiverRedisMessage(latch); } /*** 计数器，用来控制线程* @return*/ @Bean public CountDownLatch latch(){ return new CountDownLatch(1);//指定了计数的次数 1 }}

六．消息订阅方法

public class ReceiverRedisMessage { private static final Logger log = LoggerFactory.getLogger(ReceiverRedisMessage.class); private CountDownLatch latch; @Autowired public ReceiverRedisMessage(CountDownLatch latch) { this.latch = latch; } /*** 队列消息接收方法** @param jsonMsg*/ public void receiveMessage(String jsonMsg) { log.info("[开始消费REDIS消息队列phone数据...]"); try { log.info("监听者收到消息：{}", jsonMsg); JSONObject exJson = JSONObject.parseObject(jsonMsg); User user = JSON.toJavaObject(exJson, User.class); System.out.println("转化为对象 ："+user); log.info("[消费REDIS消息队列phone数据成功.]"); } catch (Exception e) { log.error("[消费REDIS消息队列phone数据失败，失败信息:{}]", e.getMessage()); } latch.countDown(); }}

七．定时消息发布测试

@EnableScheduling@Componentpublic class PublisherController { private static final Logger log = LoggerFactory.getLogger(PublisherController.class); @Autowired private RedisUtils redisUtils; @Scheduled(fixedRate = 5000) public String pubMsg() { User user=new User(1, "尚***", 26,"男","陕西省xxxx市xxxxxx县"); redisUtils.publish("phone", user); log.info("Publisher sendes Topic... "); return "success"; }}

八．测试结果

九．发布对象User实体

public class User implements Serializable { /****/ private static final long serialVersionUID = 1L; private int id; private String name; private int age; private String sex; private String address;.....................}

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