SpringBoot+RabbitMQ(官方案例)

1. 在线文档
2. 项目结构

   1.源码克隆：git clone https://github.com/spring-guides/gs-messaging-rabbitmq.git
   2.包含两个项目initial和complete，initial可以根据文档练习完善，complete是完整项目
   3.功能描述：构建应用程序，SpringBoot 与 RabbitMQ 服务器交互，实现消息的订阅与发布
   4.RabbitMQ：https://blog.csdn.net/tongxin_tongmeng/article/details/128418388

   

3. 源码分析

   1.POM依赖
   
   	
   		org.springframework.boot
   		spring-boot-starter-amqp
   	
   	
   	
   		org.springframework.boot
   		spring-boot-starter-test
   		test
   	
   	
   		org.springframework.amqp
   		spring-rabbit-test
   		test
   	
   

   2.入口类
   // https://blog.csdn.net/tongxin_tongmeng/article/details/128401278
   @SpringBootApplication
   public class MessagingRabbitmqApplication {
   
   	static final String topicExchangeName = "spring-boot-exchange";
   
   	static final String queueName = "spring-boot";
   
   	@Bean
   	Queue queue() {
   		return new Queue(queueName, false);
   	}
   
   	@Bean
   	TopicExchange exchange() {
   		return new TopicExchange(topicExchangeName);
   	}
   
   	@Bean
   	Binding binding(Queue queue, TopicExchange exchange) {
   		return BindingBuilder.bind(queue).to(exchange).with("foo.bar.#");
   	}
   
   	@Bean
   	SimpleMessageListenerContainer container(ConnectionFactory connectionFactory,
   			MessageListenerAdapter listenerAdapter) {
   		SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
   		container.setConnectionFactory(connectionFactory);
   		container.setQueueNames(queueName);
   		container.setMessageListener(listenerAdapter);
   		return container;
   	}
   
   	@Bean
   	MessageListenerAdapter listenerAdapter(Receiver receiver) {
   		return new MessageListenerAdapter(receiver, "receiveMessage");
   	}
   
   	public static void main(String[] args) throws InterruptedException {
   		SpringApplication.run(MessagingRabbitmqApplication.class, args).close();
   	}
   
   }

   3.发送消息
   @Component
   public class Runner implements CommandLineRunner {
   
   	private final RabbitTemplate rabbitTemplate;
   	private final Receiver receiver;
   
   	public Runner(Receiver receiver, RabbitTemplate rabbitTemplate) {
   		this.receiver = receiver;
   		this.rabbitTemplate = rabbitTemplate;
   	}
   
   	@Override
   	public void run(String... args) throws Exception {
   		System.out.println("Sending message...");
   		rabbitTemplate.convertAndSend(MessagingRabbitmqApplication.topicExchangeName, "foo.bar.baz", "Hello from RabbitMQ!");
   		receiver.getLatch().await(10000, TimeUnit.MILLISECONDS);
   	}
   
   }

   4.接收消息
   @Component
   public class Receiver {
   
   	private CountDownLatch latch = new CountDownLatch(1);
   
   	public void receiveMessage(String message) {
   		System.out.println("Received <" + message + ">");
   		latch.countDown();
   	}
   
   	public CountDownLatch getLatch() {
   		return latch;
   	}
   
   }

4. 项目演示