Springboot+redis实现消息发布与订阅的代码
⼀．创建spring boot项⽬
<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
server:
port: 7888
# ⽇志配置
logging:
config: classpath:l
level:
cn.dhcc: info
org.springframework: info
org.springframework.web: info
com.alibaba.nacos.client.naming: error
spring:
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
springframework事务@Configuration
public 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
public class RedisUtils {
private static final Logger log = Logger(RedisUtils.class);
private RedisTemplate<String, Object> redisTemplate;
public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
}
public void publish(String channal ,Object obj) {
}
}
五．配置消息监听
@Configuration
public 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 = Logger(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 = JavaObject(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) {
<("[消费REDIS消息队列phone数据失败，失败信息:{}]", e.getMessage());
}
}
}
七．定时消息发布测试
@EnableScheduling
@Component
public class PublisherController {
private static final Logger log = Logger(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 ");
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;
.....................
}
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！

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