通过RabbitMQ通过ID获取消息

Question

I'm using RabbitMQ with Spring AMQP. I want to send some message to the MQ and then obtain just this one (by ID or something).

Right now I have a listener which receives every message sent to MQ:

val latch = CountDownLatch(1)

@RabbitListener(queues = arrayOf(RabbitMqConfig.QUEUE_NAME))
fun receiveMessage(message: Message) {
    logger.info("Received message with body = ${message.body}")

    latch.countDown()
}

But how can I get specific message by id? I've read about correlationId but there's no method in the RabbitTemplate class to receive by correlationId.

Answer 1

There is also an AsyncRabbitTemplate which returns a ListenableFuture<?> when calling one of its sendAndReceive methods.

When the async reply is received, you can store the state in your rest controller (or a database) and the user can query the state.