Disconnect client session from Spring websocket stomp server

Question

I've searched quite a bit and been unable to find this: Is there a way that a spring websocket stomp server can disconnect a client based on the sessionId (or really based on anything at all)?

It seems to me that once a client connects to a server there is nothing that allows the server to disconnect the client.

Answer 1

Actually using some workarounds you can achieve what you want. For that you should do:

1. Use java configuration (not sure if it is possible with XML config)
2. Extend your config class from WebSocketMessageBrokerConfigurationSupport and implement WebSocketMessageBrokerConfigurer interface
3. Create custom sub-protocol websocket handler and extend it from SubProtocolWebSocketHandler class
4. In your custom sub-protocol websocket handler override afterConnectionEstablished method and you will have access to WebSocketSession :)

I've created sample spring-boot project to show how we can disconnect client session from server side: https://github.com/isaranchuk/spring-websocket-disconnect