title: Spring 4 WebSocket configure port
body: <p>Using Spring 4 I need configure WebSocket use other port than HTTP. 
  In other words by default user access to HTTP and WebSocket as follow:</p>
  
  <pre><code>http://server:9090/
  ws://server:9090/
  </code></pre>
  
  <p>But I need do the follow:</p>
  
  <pre><code>http://server:9090/
  ws://server:9999/
  </code></pre>
  
  <p>In code I have only following:</p>
  
  <pre><code>@Configuration
  @EnableWebSocket
  public class WebSocketConfig
      implements WebSocketConfigurer { 
  </code></pre>
  
  <p>Also I have Handler:</p>
  
  <pre><code>Handler extends TextWebSocketHandler {
  </code></pre>
  
  <p>Is there such ability in Spring?</p>