rabbitmq（三）-Direct交换器

编写Direct模式
application.yml

mq: 
  config: 
#交换器名称
    exchange: log.direct
    queue: 
      error: 
#队列名称
        name: log.error
        routing: 
          key: log.error.routiang.key
      info: 
        name: log.info
        routing: 
      #路由键值
          key: log.info.routiang.key
spring: 
  application: 
    name: liao
  rabbitmq: 
    host: localhost
    password: 123456
    port: 5672
    username: 123456

配置文件都用相同的就好 jar包还是之前的
1.消息接收：
InfoReceiver.java

@Component
//@RabbitListener(queues = {"hello-queue1","hello-queue2"})
//@RabbitListener(queues = "hello-queue")
//绑定队列
//QueueBinding  value:绑定队列的名称
//@Queue   value:配置队列名称
//          autoDelete:是否是一个颗删除的队列
//exchange 配置交换器
//@Exchange   value:交换器名称
//            type:指定具体的交换器类型   ExchangeTypes
//key  路由键
@RabbitListener(
        bindings =@QueueBinding(value =
        @Queue(value = "${mq.config.queue.info.name}",autoDelete ="true"),
                exchange =@Exchange(value ="${mq.config.exchange}",type = ExchangeTypes.DIRECT),
                key = "${mq.config.queue.info.routing.key}"
        )
)
public class InfoReceiver {


        @Autowired
        private AmqpTemplate amqpTemplate;


        //表示这个方法支持监听消息   如果为true，则指定这是有效负载类型的默认回退方法
        @RabbitHandler
        public void process( String msg){
                System.out.println();
               // amqpTemplate.receive(msg);
            System.out.println("队列info接受到了消息："+msg);
        }


}

2.消息发送

@Component
public class Send {

    @Autowired
    private AmqpTemplate amqpTemplate;
    @Value("${mq.config.exchange}")
    private String exchange;
    @Value("${mq.config.queue.info.routing.key}")
    private String routingkey;


     public void  send(User msg){
        //交换器
         // 路游键
         //消息
         amqpTemplate.convertAndSend(exchange,routingkey,msg.toString());
     }

}

test

@RunWith(SpringRunner.class)
@SpringBootTest(classes =SpringcloudMqApplication.class )
public class SpringcloudMqApplicationTests {

    @Autowired
    private  Send send;


    @Test
    public void contextLoads() {
        //while (true){
            int a=1;
            User user=new User();
            user.setId(Long.valueOf(a++));
            user.setUsername("yjakly");
            send.send(user);
        //}

    }

}

image.png

3.配置json格式的消息队列
发送配置

@Configuration
public class RabbitMqConfig {
    
    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate template = new RabbitTemplate(connectionFactory);
        template.setMessageConverter(new Jackson2JsonMessageConverter());
        return template;
    }
    //发送消息设置
    @Bean
    public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactoryPlus(
            SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory,
            Jackson2JsonMessageConverter jackson2JsonMessageConverter) {
        rabbitListenerContainerFactory.setMessageConverter(jackson2JsonMessageConverter);
        return rabbitListenerContainerFactory;
    }
    //json格式转换
    @Bean
    public Jackson2JsonMessageConverter jackson2JsonMessageConverter(ObjectMapper xssObjectMapper) {
        return new Jackson2JsonMessageConverter(xssObjectMapper);
    }
    
}

接收消息配置

@Configuration
public class RabbitMqConfig {


    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate template = new RabbitTemplate(connectionFactory);
        template.setMessageConverter(new Jackson2JsonMessageConverter());
        return template;
    }
    
    @Bean
    public SimpleRabbitListenerContainerFactory rabbitListenerContainerFactory(ConnectionFactory connectionFactory) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory);
        factory.setMessageConverter(new Jackson2JsonMessageConverter());
        return factory;
    }
}

image.png

注意！！ 发送消息实体类与接收消息实体类需要在一个包下 不然会报错找不到实体