一．创建spring boot项目
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<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.41</version> </dependency> |
二．编辑yml配置文件
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server: port: 7888# 日志配置logging: config: classpath:log/logback.xml level: cn.com.dhcc: info org.springframework: info org.springframework.web: info com.alibaba.nacos.client.naming: errorspring: redis: host: localhost port: 6379 password: ********* database: 1 jedis: pool: max-idle: 8 max-active: 8 max-wait: -1 min-idle: 0 timeout: 5000 |
三．配置Redis
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@Configurationpublic class RedisConfiguration { /** * 实例化 RedisTemplate 对象 * * @return */ @Bean("RedisTemplateS") public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) { RedisTemplate<String, Object> 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<String, Object> 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<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<Object>(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<String, Object> redisTemplate) { RedisUtils redisUtil = new RedisUtils(); redisUtil.setRedisTemplate(redisTemplate); return redisUtil; } |
四．编写RedisUtil消息发布方法
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public class RedisUtils { private static final Logger log = LoggerFactory.getLogger(RedisUtils.class); private RedisTemplate<String, Object> redisTemplate; public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) { this.redisTemplate = redisTemplate; } public void publish(String channal ,Object obj) { redisTemplate.convertAndSend(channal,obj ); }} |
五．配置消息监听
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@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
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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
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@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
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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; .....................} |
到此这篇关于Spring boot+redis实现消息发布与订阅的文章就介绍到这了,更多相关Spring boot redis消息发布与订阅内容请搜索服务器之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持服务器之家！
原文链接：https://www.cnblogs.com/aiaitie/archive/2020/04/25/12772176.html
