java - private messages spring websocket -


i learning spring websocket , stuck on how can send messages specific users using @destinationvariable("username") here code

configuration @configuration @enablewebsocketmessagebroker public class websocketcontextconfig extends abstractsessionwebsocketmessagebrokerconfigurer<expiringsession> {      @override     protected void configurestompendpoints(stompendpointregistry registry) {         registry.addendpoint("/ws-cfg").withsockjs();      }      @override     public void configuremessagebroker(messagebrokerregistry registry) {         registry.enablestompbrokerrelay("/queue/","/topic","/exchange/")                 .setrelayhost("localhost");         registry.setapplicationdestinationprefixes("/app");     } }

controller

@messagemapping("/chat.private.{username}")     public void filterprivatemessage(@payload message message, @destinationvariable("username") string username, principal principal) {          this.simpmessagingtemplate.convertandsendtouser(username, "/queue/chat.message", message);     }

the client code

 var stomp = null;             stomp = stomp.over(new sockjs("/ws-cfg"));             stomp.connect('guest', 'guest', function(frame) {                  stomp.subscribe("/user/queue/chat.message", function (frame) {                     dysplaymessage(json.parse(frame.body));                 });              })               $("#sendmessage").click(function (event) {                 event.preventdefault();                 var message = $('#text').val();                 var username="user@gmail.com";// lost in part, supose must @destinationvariable("username")                 destination = "/app/chat.private."+to;                 stomp.send(destination, {}, json.stringify({'text': message}));                 $('#text').val("");             });

i using websocket spring security. how can set @destinationvariable("username") on stomp.send method. in advance.

check out spring websocket chat sample has looking for: https://github.com/salmar/spring-websocket-chat


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