WebSocketJsrServer.java

//
//  ========================================================================
//  Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.embedded;

import javax.websocket.OnMessage;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.websocket.jsr356.server.ServerContainer;
import org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer;

/**
 * Example of setting up a javax.websocket server with Jetty embedded
 */
public class WebSocketJsrServer
{
    /**
     * A server socket endpoint
     */
    @ServerEndpoint(value = "/echo")
    public static class EchoJsrSocket
    {
        @OnMessage
        public void onMessage( Session session, String message )
        {
            session.getAsyncRemote().sendText(message);
        }
    }

    public static void main( String[] args ) throws Exception
    {
        Server server = new Server(8080);

        ServletContextHandler context = new ServletContextHandler(
                ServletContextHandler.SESSIONS);
        context.setContextPath("/");
        server.setHandler(context);

        // Enable javax.websocket configuration for the context
        ServerContainer wsContainer = WebSocketServerContainerInitializer
                .configureContext(context);

        // Add your websockets to the container
        wsContainer.addEndpoint(EchoJsrSocket.class);

        server.start();
        context.dumpStdErr();
        server.join();
    }
}