如何在Spring Rabbit中正确发送回复消息？

Question

I have a spring rabbit listener

@Override
public void onMessage(Message message, Channel channel) {
     //do something

      channel.basicPublish("",queue name, null, SerializationUtils.serialize(r));

}

How rabbit will understand that this response is for my particular message? In case if I have a thousands of messages. What I need to do to link request and response? And is there a way to pass to the channel POJO without serialization? Thanks

Answer 1

You should take care there about replyTo and correlation .

But I'd say that there is no reason to do that manually, because MessageListenerAdapter takes care about that.

You just need supply a POJO with request-reply capabilities:

class Delegate {
    @SuppressWarnings("unused")
    public String handleMessage(String input) {
        called.set(true);
        return "processed" + input;
    }
}

adapter.setDelegate(new Delegate());