redis发布订阅RedisTemplate实现

• 进行环境配置

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

• 配置redis

  package com.wd.config;
  
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
  import org.springframework.data.redis.core.RedisTemplate;
  import org.springframework.data.redis.serializer.StringRedisSerializer;
  
  import redis.clients.jedis.JedisPoolConfig;
  
  @Configuration
  public class RedisConfig {
  	@Bean
  	public JedisPoolConfig jedisPoolConfig(){
  		JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
  		jedisPoolConfig.setMaxIdle(10);
  		jedisPoolConfig.setMaxTotal(20);
  		jedisPoolConfig.setMinIdle(5);
  		return jedisPoolConfig;
  	}
  	
  	@Bean
  	public JedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig){
  			JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory();
  			jedisConnectionFactory.setPoolConfig(jedisPoolConfig);
  			jedisConnectionFactory.setHostName("192.168.157.135");
  			jedisConnectionFactory.setPort(6379);
  			jedisConnectionFactory.setPassword("redis");
  		   return jedisConnectionFactory;
  	}
  	
  	@Bean
  	public RedisTemplate<String, Object> redisTempLate(JedisConnectionFactory jedisConnectionFactory){
  		RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
  		redisTemplate.setConnectionFactory(jedisConnectionFactory);
  		redisTemplate.setKeySerializer(new StringRedisSerializer());
  		redisTemplate.setValueSerializer(new StringRedisSerializer());
  		return redisTemplate;
  	}
  }
  

• 配置消息监听

• package com.wd.config;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.data.redis.connection.MessageListener;
  import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
  import org.springframework.data.redis.listener.ChannelTopic;
  import org.springframework.data.redis.listener.RedisMessageListenerContainer;
  import org.springframework.data.redis.listener.Topic;
  
  import com.wd.msgListener.RedisMsgListener;
  
  @Configuration
  public class MessageListenerConfig {
  
  	/*
  	 * @Bean public ChannelTopic channelTopic(){ ChannelTopic channelTopic = new
  	 * ChannelTopic("chat2"); return channelTopic; }
  	 */
  	/**
  	 * 订阅多个
  	 * @return
  	 */
  	@Bean 
  	public List<ChannelTopic> channelTopicList(){
  		ChannelTopic channelTopic1 = new ChannelTopic("chat1");
  		ChannelTopic channelTopic2 = new ChannelTopic("chat2");
  		ChannelTopic channelTopic3 = new ChannelTopic("chat3");
  		ArrayList<ChannelTopic> channelTopicList = new ArrayList<>();
  		channelTopicList.add(channelTopic1);
  		channelTopicList.add(channelTopic2);
  		channelTopicList.add(channelTopic3);
  		return channelTopicList;
  	}
  
  	@Bean
  	public RedisMessageListenerContainer redisMessageListenerContainer(JedisConnectionFactory jedisConnectionFactory,RedisMsgListener redisMsgListener,List<ChannelTopic> channelTopicList){
  		RedisMessageListenerContainer redisMessageListenerContainer = new RedisMessageListenerContainer();
  		redisMessageListenerContainer.setConnectionFactory(jedisConnectionFactory);
  //		ArrayList<ChannelTopic> list = new ArrayList<ChannelTopic>();
  //		list.add(channelTopic);
  		//此处使用Map<MessageListener, ArrayList<ChannelTopic>> listeners = new HashMap<>();
  		//总是报错
  		
  		Map<MessageListener, Collection<? extends Topic>> listeners = new HashMap<>();
  		listeners.put(redisMsgListener, channelTopicList);
  		redisMessageListenerContainer.setMessageListeners(listeners);
  		return redisMessageListenerContainer;
  	}
  	
  	/*@Bean
  	public RedisMessageListenerContainer redisMessageListenerContainer(JedisConnectionFactory jedisConnectionFactory,RedisMsgListener redisMsgListener,ChannelTopic channelTopic){
  		RedisMessageListenerContainer redisMessageListenerContainer = new RedisMessageListenerContainer();
  		redisMessageListenerContainer.setConnectionFactory(jedisConnectionFactory);
  		ArrayList<ChannelTopic> list = new ArrayList<ChannelTopic>();
  		list.add(channelTopic);
  		//此处使用Map<MessageListener, ArrayList<ChannelTopic>> listeners = new HashMap<>();
  		//总是报错
  		
  		Map<MessageListener, Collection<? extends Topic>> listeners = new HashMap<>();
  		listeners.put(redisMsgListener, list);
  		redisMessageListenerContainer.setMessageListeners(listeners);
  		return redisMessageListenerContainer;
  	}*/
  }
  

  package com.wd.msgListener;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.data.redis.connection.Message;
  import org.springframework.data.redis.connection.MessageListener;
  import org.springframework.data.redis.core.RedisTemplate;
  import org.springframework.stereotype.Component;
  
  @Component
  public class RedisMsgListener implements MessageListener{
  	
  	@Autowired
  	private RedisTemplate<String, Object> redisTemplate;
  	
  	@Override
  	public void onMessage(Message message, byte[] pattern) {
  		byte[] body = message.getBody();
  		String msgBody = (String) redisTemplate.getValueSerializer().deserialize(body);
  		System.out.println(msgBody);
  		byte[] channel = message.getChannel();
  		String msgChannel = (String) redisTemplate.getValueSerializer().deserialize(channel);
  		System.out.println(msgChannel);
  		String msgPattern = new String(pattern);
  		System.out.println(msgPattern);
  	}
  
  }
  

• 测试

  package com.wd;
  
  import org.springframework.boot.SpringApplication;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  
  @SpringBootApplication
  public class App {
  	public static void main(String[] args) {
  		SpringApplication.run(App.class, args);
  	}
  }

package com.wd.test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.wd.App;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = App.class)
public class RedisTest {
	@Autowired
	private RedisTemplate<String, Object> redisTemplate;

	@Test
	public void testSet() {
		String channel = "chat1";
		String msg1 = "hello 发布订阅1";
		redisTemplate.convertAndSend(channel, msg1);
		String channe2 = "chat2";
		String msg2 = "hello 发布订阅2";
		redisTemplate.convertAndSend(channe2, msg2);
		String channe3 = "chat3";
		String msg3 = "hello 发布订阅3";
		redisTemplate.convertAndSend(channe3, msg3);
		
	}；	
}