Diagnosing Problems Using Spring Custom WebSocket Targets

Question

Diagnosing Problems Using Spring Custom WebSocket Targets

I'm having trouble getting custom destinations to work with Spring STOMP websites.

It seems to work for me the general configuration. For example, the following work.

Customer:

svc.stompClient.subscribe('/queue/messages', msg );

Server:

stompTemplate.convertAndSend("/queue/messages", msg);

However, when I try to send to a specific user destination as follows:

Customer:

svc.stompClient.subscribe('/user/queue/messages', msg );

Server:

stompTemplate.convertAndSendToUser(username, "/queue/messages", msg);

... Nothing happens.

I installed listeners SessionConnectedEventand SessionSubscribeEventthat show:

SessionConnectedEvent[GenericMessage [
    payload=byte[0], 
    headers={
        simpMessageType=CONNECT_ACK, 
        simpConnectMessage=GenericMessage [
            payload=byte[0], 
            headers={
                simpMessageType=CONNECT, 
                stompCommand=CONNECT, 
                nativeHeaders={
                    accept-version=[1.1,1.0], 
                    heart-beat=[10000,10000]
                }, 
                simpSessionAttributes={}, 
                simpSessionId=erlz0dm6
            }
        ], 
        simpSessionId=erlz0dm6
    }
]]

SessionSubscribeEvent[GenericMessage [
    payload=byte[0], 
    headers={
        simpMessageType=SUBSCRIBE, 
        stompCommand=SUBSCRIBE, 
        nativeHeaders={
            id=[sub-0], 
            destination=[/user/queue/messages]
        }, 
        simpSessionAttributes={}, 
        simpSubscriptionId=sub-0, 
        simpSessionId=erlz0dm6, 
        simpDestination=/user/queue/messages
    }
]]

And on the client side, I see the following:

 >>> SUBSCRIBE
id:sub-0
destination:/user/queue/messages

Tracing the method in some way sendToUser, I see that it passes to the /user/myusername/queue/messagestarget recognizer. However, nothing else is registered on the server, and the client does not receive the message.

Therefore, I want to determine: