rabbitmq 学习(五) spring-boot-rabbit同时连接多个rabbitmq服务器收发消息

上一遍博客介绍了使用spring-boot连接单个rabbitmq服务器发送和接收消息，但是在实际的项目中我们可能需要同时连接多个不同的rabbitmq服务器发送和接收消息。今天简单介绍下如何使用spring-boot连个多个rabbitmq服务器发送和接收消息。
1.配置文件中配置2个rabbitmq连接信息(这里我在2台虚拟机上安装rabbitmq)

server:
  port: 8091
spring:
  application:
    name: rabbit-spring-boot
  rabbitmq:
    dev:
      host: 192.168.98.22
      port: 5672
      username: root
      password: root
    test:
     host: 192.168.98.23
     port: 5672
     username: root
     password: root

2.创建rabbitmq连接配置类

@Configuration
public class RabbitMqConfig {
	 // 注意这里使用了primary注解
	 //  声明连接工厂连接开发服务器
	@Primary
	@Bean(name = "devConnectionFactory")
	public ConnectionFactory devConnectionFactory(@Value("${spring.rabbitmq.dev.host}") String host,
	                                           @Value("${spring.rabbitmq.dev.port}") int port,
	                                           @Value("${spring.rabbitmq.dev.username}") String username,
	                                           @Value("${spring.rabbitmq.dev.password}") String password) {
	                                           // 使用@Value直接读取配置文件中的信息
		CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
		connectionFactory.setHost(host);
		connectionFactory.setPort(port);
		connectionFactory.setUsername(username);
		connectionFactory.setPassword(password);
		connectionFactory.setVirtualHost("/");
		connectionFactory.setPublisherConfirms(true);
		connectionFactory.setPublisherReturns(true);
		return connectionFactory;
	}
	//  声明连接工厂连接测试服务器
	@Bean(name = "testConnectionFactory")
	public ConnectionFactory testConnectionFactory(@Value("${spring.rabbitmq.test.host}") String host,
	                                              @Value("${spring.rabbitmq.test.port}") int port,
	                                              @Value("${spring.rabbitmq.test.username}") String username,
	                                              @Value("${spring.rabbitmq.test.password}") String password) {
		CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
		connectionFactory.setHost(host);
		connectionFactory.setPort(port);
		connectionFactory.setUsername(username);
		connectionFactory.setPassword(password);
		connectionFactory.setVirtualHost("/");
		connectionFactory.setPublisherConfirms(true);
		connectionFactory.setPublisherReturns(true);
		return connectionFactory;
	}
	//  声明开发服务器rabbitTemplate
	@Bean(name = "devRabbitTemplate")
	public RabbitTemplate devRabbitTemplate(@Qualifier("devConnectionFactory") ConnectionFactory connectionFactory) {
		RabbitTemplate rabbitTemplate=new RabbitTemplate(connectionFactory);
		return rabbitTemplate;
	}
	//  声明测试服务器连接 rabbitTemplate
	@Bean(name = "testRabbitTemplate")
	public RabbitTemplate testRabbitTemplate(@Qualifier("testConnectionFactory") ConnectionFactory connectionFactory) {
		RabbitTemplate rabbitTemplate=new RabbitTemplate(connectionFactory);
		return rabbitTemplate;
	}

	/**
	 * 声明dev containerFactory
	 * @param rabbitListenerContainerFactoryConfigurer
	 * @param connectionFactory
	 * @return
	 */
	@Bean(name = "devContainerFactory")
	public SimpleRabbitListenerContainerFactory devSimpleRabbitListenerContainerFactory(
			SimpleRabbitListenerContainerFactoryConfigurer rabbitListenerContainerFactoryConfigurer,
			@Qualifier("devConnectionFactory") ConnectionFactory connectionFactory) {
		SimpleRabbitListenerContainerFactory containerFactory=new SimpleRabbitListenerContainerFactory();
		rabbitListenerContainerFactoryConfigurer.configure(containerFactory,connectionFactory);
		return containerFactory;
	}

	/**
	 * 声明  test containerFactory
	 * @param rabbitListenerContainerFactoryConfigurer
	 * @param connectionFactory
	 * @return
	 */
	@Bean(name = "testContainerFactory")
	public SimpleRabbitListenerContainerFactory testSimpleRabbitListenerContainerFactory(
			SimpleRabbitListenerContainerFactoryConfigurer rabbitListenerContainerFactoryConfigurer,
			@Qualifier("testConnectionFactory") ConnectionFactory connectionFactory) {
		SimpleRabbitListenerContainerFactory containerFactory=new SimpleRabbitListenerContainerFactory();
		rabbitListenerContainerFactoryConfigurer.configure(containerFactory,connectionFactory);
		return containerFactory;
	}

	@Bean
	public RestTemplate restTemplate() {
		return new RestTemplate();
	}
}

3.创建消息生产者

@Component
public class RabbitMQProducer {
	//  指定dev服务器rabbitTemplate
	@Resource(name = "devRabbitTemplate")
	AmqpTemplate devAmqpTemplate;
	//  指定test服务器rabbitTemplate
	@Resource(name = "testRabbitTemplate")
	AmqpTemplate testAmqpTemplate;

	@Value("${open-care.rabbitmq.exchange.name}")
	String exchangeName;
	@Value("${open-care.rabbitmq.queue1-name}")
	String queueName;

	public void send(Object object) {
		try {
			Message message= MessageBuilder.withBody(JSON.toJSONString(object).getBytes("UTF-8"))
					.setContentType(MessageProperties.CONTENT_TYPE_JSON)
					.setContentEncoding("UTF-8")
					.setMessageId(UUID.randomUUID().toString()).build();
			// 指定exchange交换器名称为fanout_exchange(fanout交换器没有路由键)
			devAmqpTemplate.send("fanout_exchange","",message);
			//  使用devAmqpTemplate将消息发送到开发服务器
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	public void sendMessage(Object object) {
		try {
			Message message= MessageBuilder.withBody(JSON.toJSONString(object).getBytes("UTF-8"))
					.setContentType(MessageProperties.CONTENT_TYPE_JSON)
					.setContentEncoding("UTF-8")
					.setMessageId(UUID.randomUUID().toString()).build();
			// 指定交换器名称为fanout_exchange(fanout交换器没有路由键)
			testAmqpTemplate.send("fanout_exchange","",message);
			// 使用testAmqpTeplate将消息发送到测试服务器
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}
}

4.创建消息消费者

@Component
public class RabbitMQConsumer {
	@RabbitHandler
	@RabbitListener(queues = "q.test1",containerFactory = "devContainerFactory")//  指定队列名称和容器工厂，接收开发服务器队列q.test1中的消息
	public void receive(Object object) {
		Message message=(Message)object;
		byte bytes[]=null;
		if (message != null) {
			bytes=message.getBody();
		}
		try {
			String msg=new String(bytes,"UTF-8");
			System.out.println("192.168.98.22 q.test1------------------------"+msg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	@RabbitHandler
	@RabbitListener(queues = "q.test2",containerFactory = "devContainerFactory")//  指定队列名称和容器工厂，接收开发服务器队列q.test2中的消息
	public void receiveQueue1(Object object) {
		Message message=(Message)object;
		byte bytes[]=null;
		if (message != null) {
			bytes=message.getBody();
		}
		try {
			String msg=new String(bytes,"UTF-8");
			System.out.println("192.168.98.22 q.test2------------------------"+msg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	@RabbitHandler
	@RabbitListener(queues = "q.test3",containerFactory = "devContainerFactory")//  指定队列名称和容器工厂，接收开发服务器队列q.test3中的消息
	public void receiveQueue2(Object object) {
		Message message=(Message)object;
		byte bytes[]=null;
		if (message != null) {
			bytes=message.getBody();
		}
		try {
			String msg=new String(bytes,"UTF-8");
			System.out.println("192.168.98.22 q.test3------------------------"+msg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	@RabbitHandler
	@RabbitListener(queues = "q.test1",containerFactory = "testContainerFactory")
	//  指定队列名称和容器工厂，接收测试服务器队列q.test1中的消息
	public void receive23message(Object object) {
		Message message=(Message)object;
		byte bytes[]=null;
		if (message != null) {
			bytes=message.getBody();
		}
		try {
			String msg=new String(bytes,"UTF-8");
			System.out.println("192.168.98.23 q.test1------------------------"+msg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	@RabbitHandler
	@RabbitListener(queues = "q.fanout1",containerFactory = "testContainerFactory")//  指定队列名称和容器工厂，接收测试服务器队列q.fanout1中的消息
	public void receiveFanoutQueue(Object object) {
		Message message=(Message)object;
		byte bytes[]=null;
		if (message != null) {
			bytes=message.getBody();
		}
		try {
			String msg=new String(bytes,"UTF-8");
			System.out.println("192.168.98.23 q.fanout1------------------------"+msg);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}
}