RabbitMQ整合Spring Booot【Exchange-Topics模式】

迷南。 2022-12-08 04:28 174阅读 0赞

## **1. “ \* ”的使用：** ##

生产者：

package com.toov5.topic;
    
    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 TopicProducer {
        //交换机名称
         private static final String EXCHANGE_NAME = "my_topic"; 
         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, "topic");  //交换机名称  交换机类型
     String routingKey="log.email"; //消息只会给邮件类型的           //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();
        }
        
    }

消费者：

package com.toov5.topic;
    
    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 ConsumerSMSTopic {
        private static final String SMS_QUEUE ="sms_queue_topic";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_topic"; 
         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, "log.*");
              //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("短信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
                
        }
    }

package com.toov5.topic;
    
    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 ConsumerEmailTopic {
        private static final String EMAIL_QUEUE ="email_queue_topic";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_topic"; 
         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, "log.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
                
        }
    }

可以看到两个消费者都可以接收到

![9ee37df834930c3fd7d2e2d1560e1fcf.png][]

![b2c256c6b05680b159e6ff8868684f38.png][]

## 2.换成 “\#” ##

生产者：

package com.toov5.topic;
    
    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 TopicProducer {
        //交换机名称
         private static final String EXCHANGE_NAME = "my_topic"; 
         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, "topic");  //交换机名称  交换机类型
            String routingKey="log.email.sms"; //消息只会给邮件类型的 //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();
        }
        
    }

消费者：

package com.toov5.topic;
    
    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 ConsumerSMSTopic {
        private static final String SMS_QUEUE ="sms_queue_topic";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_topic"; 
         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, "log.#"); //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("短信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
                
        }
    }

package com.toov5.topic;
    
    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 ConsumerEmailTopic {
        private static final String EMAIL_QUEUE ="email_queue_topic";
        //交换机名称
       private static final String EXCHANGE_NAME = "my_topic"; 
         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, "log.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
                
        }
    }

![64c50e6e159647cfd8e7da187716aa53.png][]

![89f0e9c167ce655ab8a73cb76020931d.png][]

# 总结 “\*” 匹配一个词   “\#”匹配多个词 #

[9ee37df834930c3fd7d2e2d1560e1fcf.png]: /images/20221123/0a40f8b804f247fabc95b566b6f89289.png
[b2c256c6b05680b159e6ff8868684f38.png]: /images/20221123/abe304054faa479fa383444bc2bc2339.png
[64c50e6e159647cfd8e7da187716aa53.png]: /images/20221123/7dc6b827d2014f908ccbbfc8f6df9913.png
[89f0e9c167ce655ab8a73cb76020931d.png]: /images/20221123/b226d8d2e66f4cc5a3fa8c2b9093de18.png