RabbitMQ创建队列和交换机的两种方式_rabbitmq自动创建交换机和队列

第一种通过bean创建

@Configuration
public class RabbitConfig {
 
    //队列
    @Bean
    public Queue fanoutQueue(){
        return new Queue("fanout.queue");
    }
 
    //交换机
    @Bean
    public FanoutExchange itcastFanout(){
        return new FanoutExchange("itcast.fanout");
    }
 
    //绑定队列到交换机
    @Bean
    public Binding queueEcchange(Queue fanoutQueue,FanoutExchange fanoutExchange){
        return BindingBuilder.bind(fanoutQueue).to(fanoutExchange);
    }
}

 除了new对象还可以用建造者模式

@Configuration
public class RabbitFanoutConfig {
 
    @Bean
    public Queue fanoutQueue(){
        return QueueBuilder.durable("fanout.queue").build();
    }
 
    @Bean
    public FanoutExchange itcastFanout(){
        return ExchangeBuilder.fanoutExchange("itcast.fanout").build();
    }
 
    @Bean
    public Binding fanoutQueueItcastFanout(Queue fanoutQueue,FanoutExchange itcastFanout){
        return BindingBuilder.bind(fanoutQueue).to(itcastFanout);
    }
}

第二种通过注解的方式创建

@Component
public class MessageListener 
    @RabbitListener(bindings = {
        @QueueBinding(value = @Queue(name = "direct.queue",durable = "true"), //队列
        exchange = @Exchange(name = "itcast.direct",type = ExchangeTypes.DIRECT), //交换机
        key = {"blue"})  //路由key
    })
    public void handleDirectQueue(String message){
        System.out.println("direct.queue:"+message);
    }
}

 最后还可以通过图形化页面创建队列和交换机。