stomp - How to send message to the particular user using Spring Web Sockets? -


i unable send message particular user using spring web sockets here code. here when used send message getting org.springframework.messaging.simp.annotation.support.missingsessionuserexception: no "user" header in message

please tell me how avoid this. in advance.

controller.java

@messagemapping("/sendmessage")  public void getmessage(string message,principal principal){       this.template.convertandsendtouser(principal.getname(),"/topic/messages",message);   }

index.jsp

function connect() {              var socket = new sockjs('/springwebsocket/chat');             stompclient = stomp.over(socket);               stompclient.connect({}, function(frame) {                 setconnected(true);                 console.log('connected: ' + frame);                 stompclient.subscribe('/user/queue/messages', function(messageoutput) {                  alert("respose");                 });              });         } function sendmessage() {                         var = document.getelementbyid('from').value;                                     var text = document.getelementbyid('text').value;                                     stompclient.send("/app/sendmessage",                                             {}, json.stringify({                                                 'from' : from,                                                 'text' : text,                                              }));                                  }

spring-servlet.xml:

<context:component-scan base-package="com.test"/> <mvc:annotation-driven></mvc:annotation-driven> <bean     class="org.springframework.web.servlet.view.internalresourceviewresolver">     <property name="prefix" value="/web-inf/views/">     </property>     <property name="suffix" value=".jsp">     </property> </bean>    <websocket:message-broker application-destination-prefix="/app" >     <websocket:stomp-endpoint path="/chat">         <websocket:sockjs/>     </websocket:stomp-endpoint>     <websocket:simple-broker prefix="/topic, /queue"/> </websocket:message-broker>

instead of this.template.convertandsendtouser(principal.getname(),"/topic/messages",message); use following this.template.convertandsendtouser(principal.getname(),"/queue/messages",message);


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