Spring Websockets @SendToUser without login?

Question

I have a simple spring application with websocket functionality and everything works so far. Now I want to send a message from my server to a specific client using the @Send

Answer 1

Try this. It worked for me

@Autowired
private SimpMessagingTemplate messagingTemplate;

@MessageMapping("/getHello")
public void sendReply( MessageHeaders messageHeaders, @Payload String message, @Header(name = "simpSessionId") String sessionId){
        messagingTemplate.convertAndSendToUser(sessionId, "/queue/hello", "Hello "+ message, messageHeaders);
}