RabbitMQ使用

下载RabbitMQ镜像

docker pull hub.c.163.com/library/rabbitmq:3-management

 

docker run -d -p 5672:5672 -p 15672:15672 --name myrabbitmq fb11f4e0a6b6

 

启动成功后访问：192.168.2.103:15672

 

 

进入界面后，添加exchanges和queues，然后进行绑定

 

Spring Boot与RabbitMQ整合

1、引入 spring-boot-starter-amqp

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

 

2. application.yml配置

* 自动配置
* RabbitAutoConfiguration
* 又自动配置了连接工厂ConnectionFactory；
* RabbitProperties 封装了 RabbitMQ的配置:查看默认值，

private String host = "localhost";
private int port = 5672;
private String username = "guest";
private String password = "guest";

* RabbitTemplate ：给RabbitMQ发送和接受消息；

3. 测试RabbitMQ

　　　　　/**
	 * 1、单播（点对点）
	 */
	@Test
	public void contextLoads() {
		//Message需要自己构造一个;定义消息体内容和消息头
		//rabbitTemplate.send(exchage,routeKey,message);

		//object默认当成消息体，只需要传入要发送的对象，自动序列化发送给rabbitmq；
		//rabbitTemplate.convertAndSend(exchage,routeKey,object);
		Map<String,Object> map = new HashMap<>();
		map.put("msg","这是第一个消息");
		map.put("data", Arrays.asList("helloworld",123,true));
		//对象被默认序列化以后发送出去
		rabbitTemplate.convertAndSend("exchange.direct","atguigu.news",new Book("西游记","吴承恩"));

	}

	//接受数据,如何将数据自动的转为json发送出去
	@Test
	public void receive(){
		Object o = rabbitTemplate.receiveAndConvert("atguigu.news");
		System.out.println(o.getClass());
		System.out.println(o);
	}

	/**
	 * 广播
	 */
	@Test
	public void sendMsg(){
		rabbitTemplate.convertAndSend("exchange.fanout","",new Book("红楼梦","曹雪芹"));
	}

　　json序列化配置（简单的配置如下）

@Configuration
public class MyAMQPConfig {

    @Bean
    public MessageConverter messageConverter(){
        return new Jackson2JsonMessageConverter();
    }
}

　　

4、 监听测试（service层）@EnableRabbit + @RabbitListener 监听消息队列的内容

@Service
public class BookService {

    @RabbitListener(queues = "atguigu.news")
    public void receive(Book book){
        System.out.println("收到消息："+book);
    }

    @RabbitListener(queues = "atguigu")
    public void receive02(Message message){
        System.out.println(message.getBody());
        System.out.println(message.getMessageProperties());
    }
}

　

5、AmqpAdmin ： RabbitMQ系统管理功能组件;
 AmqpAdmin：创建和删除 Queue，Exchange，Binding

@Autowired
	AmqpAdmin amqpAdmin;
	@Test
	public void createExchange(){

		//创建exchange
		amqpAdmin.declareExchange(new DirectExchange("amqpadmin.exchange"));
		//创建queue
		amqpAdmin.declareQueue(new Queue("amqpadmin.queue",true));
		//创建绑定规则
		amqpAdmin.declareBinding(new Binding("amqpadmin.queue", Binding.DestinationType.QUEUE,"amqpadmin.exchange","amqp.haha",null));
	}