1.Redis消息监听配置
RedisListenerConfig.java
package com.yearns.kafka.redis;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
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;
/**
* @author yearns
* @date 2019/7/11 13:21
*/
@Configuration
public class RedisListenerConfig {
/**
* redis消息监听器容器
* 可以添加多个监听不同话题的redis监听器,只需要把消息监听器和相应的消息订阅处理器绑定,该消息监听器
* 通过反射技术调用消息订阅处理器的相关方法进行一些业务处理
* @param connectionFactory
* @param listenerAdapter
* @return
*/
@Bean
RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory,
MessageListenerAdapter listenerAdapter
) {
RedisMessageListenerContainer container = new RedisMessageListenerContainer();
container.setConnectionFactory(connectionFactory);
//可以添加多个 messageListener
container.addMessageListener(listenerAdapter, new PatternTopic("index"));
return container;
}
/**
* 消息监听器适配器,绑定消息处理器,利用反射技术调用消息处理器的业务方法
* @param redisReceiver
* @return
*/
@Bean
MessageListenerAdapter listenerAdapter(RedisReceiver redisReceiver) {
System.out.println("消息适配器进来了");
return new MessageListenerAdapter(redisReceiver, "receiveMessage");
}
/**使用默认的工厂初始化redis操作模板*/
@Bean
StringRedisTemplate template(RedisConnectionFactory connectionFactory) {
return new StringRedisTemplate(connectionFactory);
}
}
2.Redis消息接收处理
特别注意:发布的时候需要设置序列化;订阅方也需要设置序列化
RedisReceiver.java
package com.yearns.kafka.redis;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.yearns.kafka.entity.User;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.stereotype.Service;
/**
* @author yearns
* @date 2019/7/11 13:23
*/
@Service
public class RedisReceiver {
public void receiveMessage(String message) {
Jackson2JsonRedisSerializer seria = new Jackson2JsonRedisSerializer(User.class);
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
seria.setObjectMapper(objectMapper);
User user = (User)seria.deserialize(message.getBytes());
System.out.println("消息来了:"+user);
}
}
测试类:
@Autowired
private RedisTemplate redisTemplate;
//向redis消息队列index通道发布消息
@Scheduled(fixedRate = 3000)
@Test
public void sendMessage(){
for(int i=0;i<100;i++){
User user = new User();
user.setName("zhibi"+i);
user.setUserId("111"+i);
redisTemplate.convertAndSend("index",user);
}
}