RMQ Topic

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RMQ Topic

Project Directory

Maven Dependency

 <?xml version="1.0" encoding="UTF-8"?>
 <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>org.fool.rmq</groupId>
     <artifactId>rmq</artifactId>
     <version>1.0-SNAPSHOT</version>

     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.2.0.RELEASE</version>
     </parent>

     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-amqp</artifactId>
         </dependency>

         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>

         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
     </dependencies>

     <build>
         <plugins>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
         </plugins>
     </build>
 </project>

application.properties

 spring.application.name=rmq
 server.port=

 spring.rabbitmq.host=localhost
 spring.rabbitmq.port=
 spring.rabbitmq.username=admin
 spring.rabbitmq.password=admin

 #direct part start
 rmq.config.exchange=log.direct
 rmq.config.queue.info=log.info
 rmq.config.queue.info.routing.key=log.info.routing.key
 rmq.config.queue.error=log.error
 rmq.config.queue.error.routing.key=log.error.routing.key
 #direct part end

 #topic part start
 rmq.config.exchange.topic=log.topic
 rmq.config.queue.topic.info=log.topic.info
 rmq.config.queue.topic.error=log.topic.error
 rmq.config.queue.topic.all=log.topic.all

 rmq.config.queue.user.info.routing.key=user.log.info
 rmq.config.queue.user.debug.routing.key=user.log.debug
 rmq.config.queue.user.warn.routing.key=user.log.warn
 rmq.config.queue.user.error.routing.key=user.log.error

 rmq.config.queue.product.info.routing.key=product.log.info
 rmq.config.queue.product.debug.routing.key=product.log.debug
 rmq.config.queue.product.warn.routing.key=product.log.warn
 rmq.config.queue.product.error.routing.key=product.log.error

 rmq.config.queue.order.info.routing.key=order.log.info
 rmq.config.queue.order.debug.routing.key=order.log.debug
 rmq.config.queue.order.warn.routing.key=order.log.warn
 rmq.config.queue.order.error.routing.key=order.log.error
 #topic part end

Source Code

Application.java

 package org.fool.rmq;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

 @SpringBootApplication
 public class Application {
     public static void main(String[] args) {
         SpringApplication.run(Application.class, args);
     }
 }

RmqConfig.java

 package org.fool.rmq.config;

 import org.springframework.amqp.core.Queue;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

 @Configuration
 public class RmqConfig {

     @Bean
     public Queue queue() {
         return new Queue("hello-rmq");
     }
 }

UserProducer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;

 import java.util.Date;

 @Component
 public class UserProducer {
     @Autowired
     private AmqpTemplate rmqTemplate;

     @Value("${rmq.config.exchange.topic}")
     private String exchange;

     @Value("${rmq.config.queue.user.info.routing.key}")
     private String infoRoutingKey;

     @Value("${rmq.config.queue.user.debug.routing.key}")
     private String debugRoutingKey;

     @Value("${rmq.config.queue.user.warn.routing.key}")
     private String warnRoutingKey;

     @Value("${rmq.config.queue.user.error.routing.key}")
     private String errorRoutingKey;

     public void send() {
         String message = "Hello User";
         rmqTemplate.convertAndSend(exchange, infoRoutingKey, message + " info");
         rmqTemplate.convertAndSend(exchange, debugRoutingKey, message + " debug");
         rmqTemplate.convertAndSend(exchange, warnRoutingKey, message+ " warn");
         rmqTemplate.convertAndSend(exchange, errorRoutingKey, message + " error");
     }
 }

ProductProducer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;

 import java.util.Date;

 @Component
 public class ProductProducer {
     @Autowired
     private AmqpTemplate rmqTemplate;

     @Value("${rmq.config.exchange.topic}")
     private String exchange;

     @Value("${rmq.config.queue.product.info.routing.key}")
     private String infoRoutingKey;

     @Value("${rmq.config.queue.product.debug.routing.key}")
     private String debugRoutingKey;

     @Value("${rmq.config.queue.product.warn.routing.key}")
     private String warnRoutingKey;

     @Value("${rmq.config.queue.product.error.routing.key}")
     private String errorRoutingKey;

     public void send() {
         String message = "Hello Product";
         rmqTemplate.convertAndSend(exchange, infoRoutingKey, message + " info");
         rmqTemplate.convertAndSend(exchange, debugRoutingKey, message + " debug");
         rmqTemplate.convertAndSend(exchange, warnRoutingKey, message + " warn");
         rmqTemplate.convertAndSend(exchange, errorRoutingKey, message + " error");
     }
 }

OrderProducer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;

 import java.util.Date;

 @Component
 public class OrderProducer {
     @Autowired
     private AmqpTemplate rmqTemplate;

     @Value("${rmq.config.exchange.topic}")
     private String exchange;

     @Value("${rmq.config.queue.order.info.routing.key}")
     private String infoRoutingKey;

     @Value("${rmq.config.queue.order.debug.routing.key}")
     private String debugRoutingKey;

     @Value("${rmq.config.queue.order.warn.routing.key}")
     private String warnRoutingKey;

     @Value("${rmq.config.queue.order.error.routing.key}")
     private String errorRoutingKey;

     public void send() {
         String message = "Hello Order";
         rmqTemplate.convertAndSend(exchange, infoRoutingKey, message + " info");
         rmqTemplate.convertAndSend(exchange, debugRoutingKey, message + " debug");
         rmqTemplate.convertAndSend(exchange, warnRoutingKey, message + " warn");
         rmqTemplate.convertAndSend(exchange, errorRoutingKey, message + " error");
     }
 }

TopicLogInfoConsumer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.ExchangeTypes;
 import org.springframework.amqp.rabbit.annotation.Exchange;
 import org.springframework.amqp.rabbit.annotation.Queue;
 import org.springframework.amqp.rabbit.annotation.QueueBinding;
 import org.springframework.amqp.rabbit.annotation.RabbitHandler;
 import org.springframework.amqp.rabbit.annotation.RabbitListener;
 import org.springframework.stereotype.Component;

 @Component
 @RabbitListener(bindings = @QueueBinding(
         value = @Queue(value = "${rmq.config.queue.topic.info}", autoDelete = "true"),
         exchange = @Exchange(value = "${rmq.config.exchange.topic}", type = ExchangeTypes.TOPIC),
         key = "*.log.info"
 ))
 public class TopicLogInfoConsumer {
     @RabbitHandler
     public void handle(String message) {
         System.out.println("consume info: " + message);
     }
 }

TopicLogErrorConsumer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.ExchangeTypes;
 import org.springframework.amqp.rabbit.annotation.Exchange;
 import org.springframework.amqp.rabbit.annotation.Queue;
 import org.springframework.amqp.rabbit.annotation.QueueBinding;
 import org.springframework.amqp.rabbit.annotation.RabbitHandler;
 import org.springframework.amqp.rabbit.annotation.RabbitListener;
 import org.springframework.stereotype.Component;

 @Component
 @RabbitListener(bindings = @QueueBinding(
         value = @Queue(value = "${rmq.config.queue.topic.error}", autoDelete = "true"),
         exchange = @Exchange(value = "${rmq.config.exchange.topic}", type = ExchangeTypes.TOPIC),
         key = "*.log.error"
 ))
 public class TopicLogErrorConsumer {
     @RabbitHandler
     public void handle(String message) {
         System.out.println("consume error: " + message);
     }
 }

TopicLogAllConsumer.java

 package org.fool.rmq.topic;

 import org.springframework.amqp.core.ExchangeTypes;
 import org.springframework.amqp.rabbit.annotation.Exchange;
 import org.springframework.amqp.rabbit.annotation.Queue;
 import org.springframework.amqp.rabbit.annotation.QueueBinding;
 import org.springframework.amqp.rabbit.annotation.RabbitHandler;
 import org.springframework.amqp.rabbit.annotation.RabbitListener;
 import org.springframework.stereotype.Component;

 @Component
 @RabbitListener(bindings = @QueueBinding(
         value = @Queue(value = "${rmq.config.queue.topic.all}", autoDelete = "true"),
         exchange = @Exchange(value = "${rmq.config.exchange.topic}", type = ExchangeTypes.TOPIC),
         key = "*.log.*"
 ))
 public class TopicLogAllConsumer {
     @RabbitHandler
     public void handle(String message) {
         System.out.println("consume all: " + message);
     }
 }

ApplicationTest.java

 package org.fool.rmq.test;

 import org.fool.rmq.Application;
 import org.fool.rmq.direct.LogProducer;
 import org.fool.rmq.producer.Producer;
 import org.fool.rmq.topic.OrderProducer;
 import org.fool.rmq.topic.ProductProducer;
 import org.fool.rmq.topic.UserProducer;
 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.test.context.junit4.SpringRunner;

 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = Application.class)
 public class ApplicationTest {

     @Autowired
     private Producer producer;

     @Autowired
     private LogProducer logProducer;

     @Autowired
     private UserProducer userProducer;

     @Autowired
     private ProductProducer productProducer;

     @Autowired
     private OrderProducer orderProducer;

     @Test
     public void test() {
         producer.send();
     }

     @Test
     public void testDirect() {
         logProducer.send();
     }

     @Test
     public void testTopic() {
         userProducer.send();
         productProducer.send();
         orderProducer.send();
     }
 }

Console Output

RMQ Management