如何在Spring Integration中动态添加队列进行交换

Question

我在integrationcontext.xml中进行了以下交换

<!-- rabbit exchanges, queues, and bindings used by this app -->
<rabbit:topic-exchange name="newPaymentEventsExchange" auto-delete="false" durable="true">
    <rabbit:bindings>

    </rabbit:bindings>
</rabbit:topic-exchange>

我需要能够根据数据库中以下对象的channelName值动态地向交换添加队列，我也应该能够在有人添加新频道时更新：

public class Channel {
    private Long channelId;
    private String tenantId;
    private String channelName;

    ------
    //Getters & setters
 }

Answer 1

使用AmqpAdmin执行此类操作：

/**
 * Declare the given queue.
 * @param queue the queue to declare.
 * @return the name of the queue.
 */
String declareQueue(Queue queue);

/**
 * Declare a binding of a queue to an exchange.
 * @param binding a description of the binding to declare.
 */
void declareBinding(Binding binding);

为方便起见，您可以考虑使用QueueBuilder和BindingBuilder ：

QueueBuilder.nonDurable("foo")
    .autoDelete()
    .exclusive()
    .withArgument("foo", "bar")
    .build()
...
BindingBuilder.bind(
            marketDataQueue()).to(marketDataExchange()).with(marketDataRoutingKey)

https://docs.spring.io/spring-amqp/docs/2.0.0.RELEASE/reference/html/_reference.html#broker-configuration