1.Maven quote
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency>
2.redis attribute configuration
spring.redis.database=0 spring.redis.host=127.0.0.1 spring.redis.port=6379 spring.redis.password=****** server.port=5555
3. Set interception related objects
3.1 Answering objects
RedisReceiver may be an ordinary class or inherit the MessageListener, written as a normal class, only when the received message is received, no channel name
Package com.example.redistest.config; Import org.springframework.data.redis.connection.Message; Import org.springframework.data.redis.connection.MessageListener; Import org.springframework.stereotype.Component; @Component public class RedisReceiver { public void receiveMessage (String message) { // the TODO herein is a process performed after the received message channels System.out.println (message); } }
Inheritance MessageListener, will be able to get the message body and channel name.
package com.example.redistest.config; import org.springframework.data.redis.connection.Message; import org.springframework.data.redis.connection.MessageListener; import org.springframework.stereotype.Component; @Component public class RedisReceiver implements MessageListener { @Override public void onMessage(Message message, byte[] pattern) { System.out.println(new String(message.getBody())); System.out.println(new String(message.getChannel())); } }
3.2 monitor adapter configuration, the message listener container
container.addMessageListener(listenerAdapter, new PatternTopic("channel:test"));
Message listener listens to increase container message, the first parameter is listening adapter, the second parameter is listening channel.
package com.example.redistest.config; import org.springframework.cache.annotation.EnableCaching; 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.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; @Configuration @EnableCaching public class RedisCacheConfig { @Bean RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory, MessageListenerAdapter listenerAdapter) { RedisMessageListenerContainer container = new RedisMessageListenerContainer(); container.setConnectionFactory(connectionFactory); // 可以添加多个 messageListener,配置不同的交换机 container.addMessageListener(listenerAdapter, new PatternTopic("channel:test")); return container; } @Bean MessageListenerAdapter listenerAdapter(RedisReceiver receiver) { System.out.println("消息适配器1"); return new MessageListenerAdapter(receiver, "onMessage"); } @Bean StringRedisTemplate template(RedisConnectionFactory connectionFactory) { return new StringRedisTemplate(connectionFactory); } }
Messaging 3.3
package com.example.redistest.controller; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.core.StringRedisTemplate; import org.springframework.data.redis.core.ValueOperations; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import java.util.Date; @RequestMapping("/redis") @Controller public class RedisController { @Autowired StringRedisTemplate template; /** * 发布消息 * * @param id * @return */ @RequestMapping("/sendMessage/{id}") public String sendMessage(@PathVariable String id) { for(int i = 1; i <= 5; i++) { template.convertAndSend("channel:test", String.format("我是消息{%d}号: %tT", i, new Date())); } return ""; } }
test
postman访问http://localhost:5555/redis/sendMessage/1
After receiving a message printed