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rabbitMQ的Topic模式的生产者与消费者使用案例

news 2025/8/19 20:18:32

在这里插入图片描述

topic模式 RoutingKey 按照英文单词点号多拼接规则填充。其中消费者匹配规则时候 * 代表一个单词，#表示多个单词

消费者C1的RoutingKey 规则按照`.orange.` 匹配绑定队列Q1

package com.esint.rabbitmq.work05;import com.esint.rabbitmq.RabbitMQUtils;
import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DeliverCallback;public class ReceiveLogsTopic01 {public static final String EXCHANGE_NAME = "topic";public static void main(String[] args) throws Exception {Channel channel = RabbitMQUtils.getChannel();channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC);String queueName = "Q1";channel.queueDeclare(queueName,false,false,false,null);channel.queueBind(queueName,EXCHANGE_NAME,"*.orange.*");System.out.println("Q1队列等待接受消息...");DeliverCallback deliverCallback = (deliverTag,mes)->{System.out.println("打印ReceiveLogsTopic01控制台消息：" + new String(mes.getBody(),"UTF-8"));System.out.println("接收队列：" + queueName + " 绑定键：" + mes.getEnvelope().getRoutingKey());};channel.basicConsume(queueName,true,deliverCallback,deliverTag->{});}}

消费者C2的RoutingKey 规则按照`.rabbit. 和 lazy.#` 匹配绑定队列Q2

package com.esint.rabbitmq.work05;import com.esint.rabbitmq.RabbitMQUtils;
import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.DeliverCallback;public class ReceiveLogsTopic02 {public static final String EXCHANGE_NAME = "topic";public static void main(String[] args) throws Exception {Channel channel = RabbitMQUtils.getChannel();channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC);String queueName = "Q2";channel.queueDeclare(queueName,false,false,false,null);channel.queueBind(queueName,EXCHANGE_NAME,"*.*.rabbit");channel.queueBind(queueName,EXCHANGE_NAME,"lazy.#");System.out.println("Q2队列等待接受消息...");DeliverCallback deliverCallback = (deliverTag,mes)->{System.out.println("打印ReceiveLogsTopic01控制台消息：" + new String(mes.getBody(),"UTF-8"));System.out.println("接收队列：" + queueName + " 绑定键：" + mes.getEnvelope().getRoutingKey());};channel.basicConsume(queueName,true,deliverCallback,deliverTag->{});}}

生产者顺序发送

        bindKeyMap.put("quick.orange.rabbit","Q1 Q2 catch【1】");bindKeyMap.put("lazy.orange.elep","Q1 Q2 【2】");bindKeyMap.put("quick.orange.fox","Q1【3】");bindKeyMap.put("lazy.brown.fox","Q2【4】");bindKeyMap.put("lazy.pink.rabbit","Q2 Q2【5】");bindKeyMap.put("quick.brown.fox","wu【6】");bindKeyMap.put("quick.orange.male.rabbit","wu【7】");bindKeyMap.put("lazy.orange.male.rabbit","Q2【8】");

package com.esint.rabbitmq.work05;import com.esint.rabbitmq.RabbitMQUtils;
import com.rabbitmq.client.Channel;import java.util.HashMap;
import java.util.Map;public class ProductLogs {public static final String EXCHANGE_NAME = "topic";public static void main(String[] args) throws Exception {Channel channel = RabbitMQUtils.getChannel();HashMap<String,String > bindKeyMap = new HashMap<>();bindKeyMap.put("quick.orange.rabbit","Q1 Q2 catch【1】");bindKeyMap.put("lazy.orange.elep","Q1 Q2 【2】");bindKeyMap.put("quick.orange.fox","Q1【3】");bindKeyMap.put("lazy.brown.fox","Q2【4】");bindKeyMap.put("lazy.pink.rabbit","Q2 Q2【5】");bindKeyMap.put("quick.brown.fox","wu【6】");bindKeyMap.put("quick.orange.male.rabbit","wu【7】");bindKeyMap.put("lazy.orange.male.rabbit","Q2【8】");for (Map.Entry<String, String> bindingKeyEntry : bindKeyMap.entrySet()) {String key = bindingKeyEntry.getKey();String value = bindingKeyEntry.getValue();channel.basicPublish(EXCHANGE_NAME,key,null,value.getBytes("UTF-8"));System.out.println("生产者发消息："+ value);}}
}