RabbitMQ路由模式RoutingKey模式

r囧r小猫 2022-01-28 13:55 357阅读 0赞

# [RabbitMQ路由模式RoutingKey模式][RabbitMQ_RoutingKey] #

生产者发送消息到交换机并指定一个路由key，消费者队列绑定到交换机时要制定路由key（key匹配就能接受消息，key不匹配就不能接受消息）

![1179709-20181111204917630-725984167.png][]

例如：我们可以把路由key设置为insert ，那么消费者队列key指定包含insert才可以接收消息，消费者队列key定义为update或者delete就不能接收消息。很好的控制了更新，插入和删除的操作。

采用交换机direct模式

注：

前面做的demo中RoutingKey设置的空

RoutingKey有值的时候，那么 经过消息队列之后，需要在经过 RoutingKey进行判断决定 消费者

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.toov5.rabibitMQScribe</groupId>
      <artifactId>rabibitMQScribe</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      
      <dependencies>
    		<dependency>
    			<groupId>com.rabbitmq</groupId>
    			<artifactId>amqp-client</artifactId>
    			<version>3.6.5</version>
    		</dependency>
    	</dependencies>
      
    </project>

producer

package com.toov5.routing;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    import com.rabbitmq.client.Channel;
    import com.rabbitmq.client.Connection;
    import com.toov5.utils.MQConnectionUtils;
    
    //生产者 交换机类型 producerFanout类型
    public class RoutingProducer {
        //交换机名称
         private static final String EXCHANGE_NAME = "my_routing"; 
         public static void main(String[] args) throws IOException, TimeoutException {
            //建立MQ连接
             Connection connection = MQConnectionUtils.newConnection();
            //创建通道
              Channel channel = connection.createChannel();
              //生产者绑定交换机
              channel.exchangeDeclare(EXCHANGE_NAME, "direct");  //交换机名称  交换机类型
              String routingKey="email";
              //创建对应的消息 
              String msString = "my_Routing_destination_msg"+routingKey;
              //通过频道 发送消息
              System.out.println("生产者投递消息："+msString);
              channel.basicPublish(EXCHANGE_NAME, routingKey, null, msString.getBytes());
              //关闭通道 和 连接
              channel.close();
              connection.close();
        }
        
    }

consumer:

package com.toov5.routing;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    import com.rabbitmq.client.Channel;
    import com.rabbitmq.client.Connection;
    import com.rabbitmq.client.DefaultConsumer;
    import com.rabbitmq.client.Envelope;
    import com.rabbitmq.client.AMQP.BasicProperties;
    import com.toov5.utils.MQConnectionUtils;
    
    //邮件消费者
    public class ConsumerEmailRouting {
        private static final String EMAIL_QUEUE ="email_queue_routing";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_routing"; 
         public static void main(String[] args) throws IOException, TimeoutException {
             System.out.println("邮件消费者启动");
            //建立MQ连接
             Connection connection = MQConnectionUtils.newConnection(); 
            //创建通道
              Channel channel = connection.createChannel();
              
            //消费者声明队列
              channel.queueDeclare(EMAIL_QUEUE, false, false, false, null);
             //消费者队列绑定 路由
              channel.queueBind(EMAIL_QUEUE, EXCHANGE_NAME, "email");
              //消费者监听消息
          DefaultConsumer defaultConsumer = new DefaultConsumer(channel) {
                  //重写监听方法
                 @Override
                 public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
                         throws IOException {             
                     String msg = new String(body,"UTF-8");
                     System.out.println("邮件消费者获取生产者消息"+msg);
                 }
             };
             channel.basicConsume(EMAIL_QUEUE,true, defaultConsumer);   //绑定队列 事件监听
                
        }
    }

package com.toov5.routing;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    import com.rabbitmq.client.Channel;
    import com.rabbitmq.client.Connection;
    import com.rabbitmq.client.DefaultConsumer;
    import com.rabbitmq.client.Envelope;
    import com.rabbitmq.client.AMQP.BasicProperties;
    import com.toov5.utils.MQConnectionUtils;
    
    //邮件消费者
    public class ConsumerSMSRouting {
        private static final String SMS_QUEUE ="sms_queue_routing";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_routing"; 
         public static void main(String[] args) throws IOException, TimeoutException {
             System.out.println("短信消费者启动");
            //建立MQ连接
             Connection connection = MQConnectionUtils.newConnection(); 
            //创建通道
              Channel channel = connection.createChannel();
              
            //消费者声明队列
              channel.queueDeclare(SMS_QUEUE, false, false, false, null);
             //消费者队列绑定 路由
              channel.queueBind(SMS_QUEUE, EXCHANGE_NAME, "email");
             channel.queueBind(SMS_QUEUE, EXCHANGE_NAME, "sms");
              //消费者监听消息
          DefaultConsumer defaultConsumer = new DefaultConsumer(channel) {
                  //重写监听方法
                 @Override
                 public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
                         throws IOException {             
                     String msg = new String(body,"UTF-8");
                     System.out.println("邮件消费者获取生产者消息"+msg);
                 }
             };
             channel.basicConsume(SMS_QUEUE,true, defaultConsumer);   //绑定队列 事件监听
                
        }
    }

运行结果：

![1179709-20181111220339886-259343527.png][]

绑定两个：

![1179709-20181111220443606-980984362.png][]

![1179709-20181111223727373-912687159.png][]

![1179709-20181111223743959-1478567820.png][]

[RabbitMQ_RoutingKey]: https://www.cnblogs.com/toov5/p/9944019.html
[1179709-20181111204917630-725984167.png]: /images/20220128/7a3487dbf7104e1dbf984856449d5df1.png
[1179709-20181111220339886-259343527.png]: /images/20220128/5a68723bc4b34dc8a03f86d74c2fb46e.png
[1179709-20181111220443606-980984362.png]: /images/20220128/df5bcb8f7bf245c6b11a04b7ad941ddd.png
[1179709-20181111223727373-912687159.png]: /images/20220128/fa0f9088e2be470fa1190ddba754cc3f.png
[1179709-20181111223743959-1478567820.png]: /images/20220128/933376a576b449f6828485256361766e.png