Java Code Examples for io.netty.channel.socket.nio.NioServerSocketChannel

private NettyServer(){
	pGroup = new NioEventLoopGroup();
	cGroup = new NioEventLoopGroup();
	serverBootstrap = new ServerBootstrap();
	serverBootstrap.group(pGroup, cGroup)
	 .channel(NioServerSocketChannel.class)
	 .option(ChannelOption.SO_BACKLOG, 1024)
	 //设置日志
	 .handler(new LoggingHandler(LogLevel.INFO))
	 .childHandler(new ChannelInitializer<SocketChannel>() {
		protected void initChannel(SocketChannel sc) throws Exception {
			sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
			sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
			sc.pipeline().addLast(new ReadTimeoutHandler(60));
			sc.pipeline().addLast(new NettyServerHandler());
		}
	});		
}
 

public void start(SlaveNode slaveNode) {
    if(slaveNode==null){
        throw new IllegalArgumentException("slaveNode is null");
    }
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new SlaveServerInitializer());

        ChannelFuture future = b.bind(slaveNode.getPort()).sync();
        LOGGER.info("SlaveServer Startup at port:{}",slaveNode.getPort());

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        LOGGER.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new MasterServerInitializer());

        ChannelFuture future = b.bind(CommonConstants.SERVER_PORT).sync();
        LOGGER.info("MasterServer Startup at port:{}",CommonConstants.SERVER_PORT);

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        LOGGER.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new ServerInitializer());

        ChannelFuture future = b.bind(CommonConstants.SERVER_PORT).sync();
        logger.info("NettyServer Startup at port:{}",CommonConstants.SERVER_PORT);

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        logger.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

@Override
public void bind(int port) {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);  
    EventLoopGroup workerGroup = new NioEventLoopGroup();  
    ServerBootstrap bootstrap = new ServerBootstrap()
            .group(bossGroup, workerGroup)
            .channel(NioServerSocketChannel.class).localAddress(new InetSocketAddress(8888))
            .childHandler(new ChannelInitializer<SocketChannel>() {

                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new Encoder(serializer), new Decoder(serializer), new ProviderHandler());
                }
                
            });
    
    bootstrap.bind(port);
}
 

@Override
public void start() throws Exception {
    try {
        ServerBootstrap b = new ServerBootstrap()
                .group(bossGroup, workGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(serverInitializer);

        logger.info("Starting TcpChatServer... Port: " + port);

        channelFuture = b.bind(port).sync();

    } finally {
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                shutdown();
            }
        });
    }
}
 

@Override
public void start() throws Exception {
    try {
        ServerBootstrap b = new ServerBootstrap()
                .group(bossGroup, workGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(serverInitializer);

        logger.info("Starting WebSocketChatServer... Port: " + port);

        channelFuture = b.bind(port).sync();
    } finally {
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                shutdown();
            }
        });
    }
}
 

public static void main(String[] args) throws Exception {

        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_REUSEADDR, true)
                .childHandler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new SimpleServerHandler());
                    }
                });
        b.bind(8090).sync().channel().closeFuture().sync();
    }
 

protected AbstractNettyServer(String serverName) {
	this.serverName = Objects.requireNonNull(serverName, "server name");
	bootstrap = new ServerBootstrap();
	if (Epoll.isAvailable()) {
		bootstrap.option(ChannelOption.SO_BACKLOG, 1024).channel(EpollServerSocketChannel.class)
				.childOption(ChannelOption.SO_LINGER, 0).childOption(ChannelOption.SO_REUSEADDR, true)
				.childOption(ChannelOption.SO_KEEPALIVE, true);
		log.info(serverName + " epoll init");
	} else {
		bootstrap.channel(NioServerSocketChannel.class);
		log.info(serverName + " nio init");
	}
	bootstrap.group(bossGroup, workerGroup).option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
			.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
			.childOption(ChannelOption.TCP_NODELAY, true).childHandler(new ChannelInitializer<SocketChannel>() {

				@Override
				protected void initChannel(SocketChannel ch) throws Exception {
					initPipeline(ch.pipeline());
				}
			});
}
 

@Override
public void start(final int port) {
    bossGroup = new NioEventLoopGroup(bossGroupThreads);
    workerGroup = new NioEventLoopGroup(workerGroupThreads);
    ServerBootstrap serverBootstrap = new ServerBootstrap();
    try {
    serverBootstrap
        .group(bossGroup, workerGroup)
        .channel(NioServerSocketChannel.class)
        .option(ChannelOption.SO_BACKLOG, backlogSize)
        .childOption(ChannelOption.SO_KEEPALIVE, true)
        .childOption(ChannelOption.TCP_NODELAY, true)
        .childHandler(serializeType.getServerChannelInitializer().newInstance());
        channel = serverBootstrap.bind(port).sync().channel();
    } catch (final Exception ex) {
        throw new ServerException(Server.SYSTEM_MESSAGE_ID, ex);
    }
}
 

public void doOpen() throws InterruptedException {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try{
        ServerBootstrap serverBootstrap = new ServerBootstrap();
        serverBootstrap.group(bossGroup,workerGroup);
        serverBootstrap.channel(NioServerSocketChannel.class);
        serverBootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
            protected void initChannel(SocketChannel socketChannel) throws Exception {
                ChannelPipeline pipeline = socketChannel.pipeline();
                pipeline.addLast(new ObjectDecoder(1024*1024, ClassResolvers.weakCachingConcurrentResolver(this.getClass().getClassLoader())));
                pipeline.addLast(new ObjectEncoder());
                pipeline.addLast((SimpleChannelInboundHandler)handler);
            }
        });
        serverBootstrap.option(ChannelOption.SO_BACKLOG,1024);
        serverBootstrap.childOption(ChannelOption.SO_KEEPALIVE,true);
        ChannelFuture future = serverBootstrap.bind(address,port).sync();
        //future.channel().closeFuture().sync();
    }finally{
        //workerGroup.shutdownGracefully();
        //bossGroup.shutdownGracefully();
    }
}
 

/**
 * 启动服务
 *
 * @throws Exception 异常
 */
public void start() throws Exception {
    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(channelInitializer)
                .option(ChannelOption.SO_BACKLOG, aceServerConfig.getBackSize())
                .childOption(ChannelOption.SO_KEEPALIVE, true)
                .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
        ChannelFuture future = bootstrap.bind(aceServerConfig.getPort()).sync();
        System.out.println("ace server starter on port : " + aceServerConfig.getPort());
        future.channel().closeFuture().sync();
    } finally {
        close();
    }


}
 

public Receiver ( final ReceiverHandlerFactory factory, final SocketAddress addr )
{
    this.factory = factory;

    this.bossGroup = new NioEventLoopGroup ();
    this.workerGroup = new NioEventLoopGroup ();
    this.bootstrap = new ServerBootstrap ();
    this.bootstrap.group ( this.bossGroup, this.workerGroup );
    this.bootstrap.channel ( NioServerSocketChannel.class );
    this.bootstrap.option ( ChannelOption.SO_BACKLOG, 5 );
    this.bootstrap.option ( ChannelOption.SO_REUSEADDR, true );
    this.bootstrap.childHandler ( new ChannelInitializer<SocketChannel> () {

        @Override
        protected void initChannel ( final SocketChannel ch ) throws Exception
        {
            handleInitChannel ( ch );
        }
    } );

    this.channel = this.bootstrap.bind ( addr ).channel ();

    logger.info ( "Receiver running ..." );
}
 

@Override
public synchronized void start() {
    bossGroup = new NioEventLoopGroup(); // (1)
    workerGroup = new NioEventLoopGroup();
    try {
        b = new ServerBootstrap(); // (2)
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new SocketServerChannelInitializer(heartTime,socketService,applicationContext));
        // Bind and start to accept incoming connections.
        b.bind(port);

        logger.info("socket: "+port+" starting....");
        // Wait until the server socket is closed.
        // In this example, this does not happen, but you can do that to gracefully
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

private ChannelFuture bindToPlainSocket() throws InterruptedException {
    String hostname = configuration.getHostName();
    int port = Integer.parseInt(configuration.getPlain().getPort());

    ServerBootstrap b = new ServerBootstrap();
    b.group(bossGroup, workerGroup)
            .channel(NioServerSocketChannel.class)
            .childHandler(new SocketChannelInitializer(ioExecutors))
            .option(ChannelOption.SO_BACKLOG, 128)
            .childOption(ChannelOption.SO_KEEPALIVE, true);

    // Bind and start to accept incoming connections.
    ChannelFuture future = b.bind(hostname, port).sync();
    LOGGER.info("Listening AMQP on " + hostname + ":" + port);
    return future;
}
 

private ChannelFuture bindToSslSocket()
        throws InterruptedException, CertificateException, UnrecoverableKeyException, NoSuchAlgorithmException,
        KeyStoreException, KeyManagementException, IOException {
    String hostname = configuration.getHostName();
    int port = Integer.parseInt(configuration.getSsl().getPort());

    ServerBootstrap b = new ServerBootstrap();
    b.group(bossGroup, workerGroup)
     .channel(NioServerSocketChannel.class)
     .childHandler(new SslSocketChannelInitializer(ioExecutors, new SslHandlerFactory(configuration)))
     .option(ChannelOption.SO_BACKLOG, 128)
     .childOption(ChannelOption.SO_KEEPALIVE, true);

    // Bind and start to accept incoming connections.
    ChannelFuture future = b.bind(hostname, port).sync();
    LOGGER.info("Listening AMQP/" + configuration.getSsl().getProtocol() + " on " + hostname + ":" + port);
    return future;
}
 

public void run() {
    try {
        // Configure the server.
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.option(ChannelOption.SO_BACKLOG, 1024);
            b.group(group)
                    .channel(NioServerSocketChannel.class)
                    .handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new Http2ServerInitializer(mSslCtx));

            sServerChannel = b.bind(PORT).sync().channel();
            Log.i(TAG, "Netty HTTP/2 server started on " + getServerUrl());
            sBlock.open();
            sServerChannel.closeFuture().sync();
        } finally {
            group.shutdownGracefully();
        }
        Log.i(TAG, "Stopped Http2TestServerRunnable!");
    } catch (Exception e) {
        Log.e(TAG, e.toString());
    }
}
 

public void start() {
	bossGroup = new NioEventLoopGroup();
	workerGroup = new NioEventLoopGroup();

	ServerBootstrap bootstrap = new ServerBootstrap();
	bootstrap
			.group(bossGroup, workerGroup)
			.channel(NioServerSocketChannel.class)
			.option(ChannelOption.SO_BACKLOG, 1024)
			.childOption(ChannelOption.SO_KEEPALIVE, true)
			.childHandler(new PlayerInitializer(this));

	try {
		channel = bootstrap.bind(server.getConfig().get("server.port").getAsShort()).sync().channel();
	} catch (InterruptedException e) {
		e.printStackTrace();
	}
}
 

public void start() throws InterruptedException {
    EventLoopGroup acceptors = new NioEventLoopGroup(socksProperties.getAcceptors());
    EventLoopGroup workers = new NioEventLoopGroup();
    EventLoopGroup forwarders = new NioEventLoopGroup();
    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(acceptors, workers)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, socksProperties.getBacklog())
                .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, socksProperties.getConnectTimeoutMillis())
                .childHandler(new Socks5WorkerChannelInitializer(socksProperties, forwarders));

        Address address = socksProperties.getListen();
        ChannelFuture future = bootstrap.bind(address.getHost(), address.getPort()).sync();
        future.channel().closeFuture().sync();
    } finally {
        forwarders.shutdownGracefully();
        workers.shutdownGracefully();
        acceptors.shutdownGracefully();
    }
}
 

@Override
public void run(String... args) throws Exception {
    NioEventLoopGroup group = new NioEventLoopGroup();
    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(group)
            .channel(NioServerSocketChannel.class)
            .childHandler(serverChannelInitializer);
    ChannelFuture channelFuture = bootstrap.bind(new InetSocketAddress(30232));
    channelFuture.addListener(future -> {
        if (future.isSuccess()) {
            logger.info("「Netty」服务器启动成功");
        } else {
            logger.info("「Netty」服务器启动失败");
        }
    });
}
 

public static void main(String[] args) throws Exception {
	EventLoopGroup bossGroup = new NioEventLoopGroup();
       EventLoopGroup workerGroup = new NioEventLoopGroup();
       
       try{
           ServerBootstrap serverBootstrap = new ServerBootstrap();
           serverBootstrap.group(bossGroup,workerGroup)
           		.channel(NioServerSocketChannel.class)
           		.childHandler(new HttpServer());
           ChannelFuture channelFuture = serverBootstrap
           		.bind(new InetSocketAddress("0.0.0.0", PORT))
           		.sync();
           channelFuture.channel().closeFuture().sync();
       } finally {
           bossGroup.shutdownGracefully();
           workerGroup.shutdownGracefully();
       }
}
 

public void start() {
    ServerBootstrap b = new ServerBootstrap();

    b.group(workerGroup)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_KEEPALIVE, true)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) throws Exception {
                    System.out.println("New client connected! (" + socketChannel.localAddress() + ")");

                    socketChannel.pipeline().addLast(new StringEncoder()).addLast(new StringEncoder()).addLast(new EchoServerHandler());
                }
            });

    f = b.bind(port);
}
 

private void startServer() throws Exception {

        Runtime.getRuntime().addShutdownHook(new Thread(this::shutdown));

        try {

            ServerBootstrap bootstrap = new ServerBootstrap();

            bootstrap.group(masterGroup, slaveGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new HttpServerInitializer(razor))
                    .option(ChannelOption.SO_BACKLOG, 128)
                    .childOption(ChannelOption.SO_KEEPALIVE, true);

            this.channel = bootstrap.bind(env.get(ENV_KEY_SERVER_HOST, DEFAULT_SERVER_HOST), env.getInt(ENV_KEY_SERVER_PORT, DEFAULT_SERVER_PORT)).sync().channel();
            log.info("{} started and listen on {}", HttpServerHandler.class.getName(), channel.localAddress());
        } catch (final InterruptedException e){

            log.error("Netty server startup failed, error: {}", e.getMessage());
        }
    }
 

public void start(){
    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(workerGroup,bossGroup)
            .channel(NioServerSocketChannel.class)
            .childHandler(new TCPHandlerInitializer(this))
            .option(ChannelOption.SO_BACKLOG, 512)
            .childOption(ChannelOption.SO_KEEPALIVE, true);
    Channel serverChannel = bootstrap.bind(new InetSocketAddress(port)).channel();
    ChannelFuture future = serverChannel.closeFuture();
    try {
        System.out.println("MQTT服务器已启动...");
        future.sync();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}
 

@Override
public void init() {
    super.init();
    b.group(bossGroup, workGroup)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_KEEPALIVE, true)
            .option(ChannelOption.TCP_NODELAY, true)
            .option(ChannelOption.SO_BACKLOG, 1024)
            .localAddress(new InetSocketAddress(port))
            .childHandler(new ChannelInitializer<SocketChannel>() {

                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(defLoopGroup,
                            new SdkServerDecoder(12),  // 自定义解码器
                            new SdkServerEncoder(),    // 自定义编码器
                            new SdkServerHandler(snowFlake) // 自定义处理器
                    );
                }
            });
}
 

public void start() {

        EventLoopGroup boss = new NioEventLoopGroup(1);
        EventLoopGroup worker = new NioEventLoopGroup();
        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(boss,worker)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new HttpChannelInitializer(list));
            ChannelFuture future = bootstrap.bind(port).sync();
            log.info("start listen in port {}", port);
            future.channel().closeFuture().sync();
        } catch (Exception e ) {
            e.printStackTrace();
        } finally {
            boss.shutdownGracefully();
            worker.shutdownGracefully();
        }
    }
 

/**
 *@description 监听指定端口
 *@time 创建时间:2017年7月21日下午3:50:26
 *@param port
 *@throws InterruptedException
 *@author dzn
 */
public void bind(int port) throws InterruptedException{
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workGroup = new NioEventLoopGroup();
    try{
        ServerBootstrap server = new ServerBootstrap();
        server.group(bossGroup, workGroup)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_BACKLOG, 1024)
            .childHandler(new ChildChannelHandler());
        ChannelFuture cf = server.bind(port).sync();
        System.out.println("服务器已启动, 监控端口号为 : " + port);
        cf.channel().closeFuture().sync();
    }finally{
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }
}
 

/**
 *@description 监听指定端口
 *@time 创建时间:2017年7月21日下午3:50:26
 *@param port
 *@throws InterruptedException
 *@author dzn
 */
public void bind(int port) throws InterruptedException{
    //分配任务线程池
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    
    //执行任务线程池
    EventLoopGroup workGroup = new NioEventLoopGroup();
    try{
        //netty Server端
        ServerBootstrap server = new ServerBootstrap();
        server.group(bossGroup, workGroup)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_BACKLOG, 1024)
            .childHandler(new ChildChannelHandler());
        
        //启动netty服务器
        ChannelFuture cf = server.bind(port).sync();
        System.out.println("服务器已启动, 监控端口号为 : " + port);
        
        //等待服务器端关闭
        cf.channel().closeFuture().sync();
    }finally{
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }
}
 

/**
 *@description 监听指定端口
 *@time 创建时间:2017年7月21日下午3:50:26
 *@param port
 *@throws InterruptedException
 *@author dzn
 */
public void bind(int port) throws InterruptedException{
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workGroup = new NioEventLoopGroup();
    try{
        ServerBootstrap server = new ServerBootstrap();
        server.group(bossGroup, workGroup)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_BACKLOG, 1024)
            .childHandler(new ChildChannelHandler());
        ChannelFuture cf = server.bind(port).sync();
        System.out.println("服务器已启动, 监控端口号为 : " + port);
        cf.channel().closeFuture().sync();
    }finally{
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }
}
 

@Override
public void start(Config config) throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    int port = config.getPort();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 1024)
                .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 1000)
                .childHandler(new SocksServerInitializer(config));

        log.info("Socks5 server bind port: {}", port);

        b.bind(port).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

public Future startAsync() {
    bossGroup = new NioEventLoopGroup(1);
    workerGroup = new NioEventLoopGroup();
    bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workerGroup)
             .channel(NioServerSocketChannel.class)
             .childHandler(new SocksServerInitializer())
             .childAttr(OPTION_ATTRIBUTE_KEY, option);

    return bootstrap.bind(option.getLocalHost(), option.getLocalPort()).addListener(
            new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (infoEnable) {
                        if (future.isSuccess()) {
                            logger.info("Listening on local port {}", option.getLocalPort());
                        } else {
                            logger.info("Shadowsocks client startup failed", future.cause());
                        }
                    }
                }
            });
}
 

private void bind() throws InterruptedException {
    EventLoopGroup boss = new NioEventLoopGroup(1);
    EventLoopGroup worker = new NioEventLoopGroup();
    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(boss, worker)
            .channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_BACKLOG, 128)
            .option(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_KEEPALIVE, true)
            .childHandler(new NettyServerInitializer());

    ChannelFuture f = bootstrap.bind(port).sync();
    if (f.isSuccess()) {
        logger.info("server start---------------");
    }
}
 

public void start(){
	logger.debug( "--Socket Server will start------------" ) ;
	boss = new NioEventLoopGroup() ;
	work = new NioEventLoopGroup() ;
	int port = CommonConfig.getInteger( SOCKET_PORT1 );
	try {
		
		logger.info( "Netty Server[" + port + "] started..." ) ;
		ServerBootstrap b = new ServerBootstrap() ;

		b.group( boss , work ) ;
		b.channel( NioServerSocketChannel.class ) ;
		b.childHandler( nettyInitializer ) ;
		b.bind( port ).sync().channel().closeFuture().sync() ;
	} catch ( Exception e ) {
		String err_string = e.toString();
		if( err_string.indexOf( "childHandler" ) != -1 ){
			logger.error( "Netty Server[" + port + "] NettyInitializer can't find." ) ;
		}else{
			logger.error( "Netty Server[" + port + "] onload err:" + e.toString() , e  ) ;
		}
	} finally {
		logger.error( "Netty Server[" + port + "] will be unload..."  ) ;
		unload();
	}
}
 

public void start(int port) throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new MqttDecoder());
                        ch.pipeline().addLast(MqttEncoder.INSTANCE);
                        ch.pipeline().addLast(new MqttInBoundHandler());
                    }
                })
                .option(ChannelOption.SO_BACKLOG, 1024)
                .childOption(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture future = bootstrap.bind(port).sync();
        future.channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }

}
 

public static void main(String[] args) throws Exception {
    // Configure the server.
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(group)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new TcpRttDecoder())
                                .addLast(new TcpRttServerHandler());
                    }
                }).childOption(ChannelOption.TCP_NODELAY, true);

        // Start the server.
        ChannelFuture f = b.bind(PORT).sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down all event loops to terminate all threads.
        group.shutdownGracefully();
    }
}
 

public static void main(String... args) throws Exception {
  System.out.println("starting server");

  String host = System.getProperty("host", "0.0.0.0");
  int port = Integer.getInteger("port", 8001);
  boolean useEpoll = Boolean.getBoolean("usePoll");

  Class channel;
  
  if (useEpoll) {
    channel = EpollServerSocketChannel.class;
  } else  {
    channel = NioServerSocketChannel.class;
  }

  ThreadFactory tf = new DefaultThreadFactory("server-elg-", true /*daemon */);
  NioEventLoopGroup boss = new NioEventLoopGroup(1, tf);
  NioEventLoopGroup worker = new NioEventLoopGroup(0, tf);
  NettyServerBuilder builder =
      NettyServerBuilder.forPort(port)
          .bossEventLoopGroup(boss)
          .workerEventLoopGroup(worker)
          .channelType(channel)
          .addService(new DefaultService())
          .directExecutor()
          .maxConcurrentCallsPerConnection(Runtime.getRuntime().availableProcessors() * 256)
          .flowControlWindow(NettyChannelBuilder.DEFAULT_FLOW_CONTROL_WINDOW * 10);

  io.grpc.Server start = builder.build();
  start.start();

  System.out.println("server started");
  start.awaitTermination();
}
 

public void start() throws Exception {
	// Configure SSL.
	final SslContext sslCtx;
	if (SSL) {
		SelfSignedCertificate ssc = new SelfSignedCertificate();
		sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
	} else {
		sslCtx = null;
	}

	// Configure the server.
	EventLoopGroup bossGroup = new NioEventLoopGroup(1);
	EventLoopGroup workerGroup = new NioEventLoopGroup();
	try {
		ServerBootstrap b = new ServerBootstrap();
		b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 100)
				.handler(new LoggingHandler(LogLevel.INFO)).childHandler(new FileServerHandlerInitializer());

		// Start the server.
		ChannelFuture f = b.bind(getHostAddress(), PORT).sync();
		// System.out.println("server is started "+f.isSuccess());
		setStarted(true);
		// Wait until the server socket is closed.
		f.channel().closeFuture().sync();
	} finally {
		// Shut down all event loops to terminate all threads.
		bossGroup.shutdownGracefully();
		workerGroup.shutdownGracefully();
	}

}
 

public void start() {
    Configuration config = Configuration.INSTANCE;
    InternalLoggerFactory.setDefaultFactory(Slf4JLoggerFactory.INSTANCE);
    bossGroup = new NioEventLoopGroup(1);
    workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel socketChannel) throws Exception {
                        socketChannel.pipeline()
                                .addLast("logging", new LoggingHandler(LogLevel.DEBUG))
                                .addLast(new SocksInitRequestDecoder())
                                .addLast(new SocksMessageEncoder())
                                .addLast(new Socks5Handler())
                                .addLast(Status.TRAFFIC_HANDLER);
                    }
                });
        log.info("\tStartup {}-{}-client [{}{}]", Constants.APP_NAME, Constants.APP_VERSION, config.getMode(), config.getMode().equals("socks5") ? "" : ":" + config.getProtocol());
        new Thread(() -> new UdpServer().start()).start();
        ChannelFuture future = bootstrap.bind(config.getLocalHost(), config.getLocalPort()).sync();
        future.addListener(future1 -> log.info("\tTCP listening at {}:{}...", config.getLocalHost(), config.getLocalPort()));
        future.channel().closeFuture().sync();
    } catch (Exception e) {
        log.error("\tSocket bind failure ({})", e.getMessage());
    } finally {
        log.info("\tShutting down");
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

public void start() {
    Configuration config = Configuration.INSTANCE;
    InternalLoggerFactory.setDefaultFactory(Slf4JLoggerFactory.INSTANCE);
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    protected void initChannel(SocketChannel socketChannel) throws Exception {
                        socketChannel.pipeline()
                                .addLast("logging", new LoggingHandler(LogLevel.DEBUG))
                                .addLast(new XConnectHandler());
                        if (config.getReadLimit() != 0 || config.getWriteLimit() != 0) {
                            socketChannel.pipeline().addLast(
                                    new GlobalTrafficShapingHandler(Executors.newScheduledThreadPool(1), config.getWriteLimit(), config.getReadLimit())
                            );
                        }
                    }
                });
        log.info("\tStartup {}-{}-server [{}]", Constants.APP_NAME, Constants.APP_VERSION, config.getProtocol());
        new Thread(() -> new UdpServer().start()).start();
        ChannelFuture future = bootstrap.bind(config.getHost(), config.getPort()).sync();
        future.addListener(future1 -> log.info("\tTCP listening at {}:{}...", config.getHost(), config.getPort()));
        future.channel().closeFuture().sync();
    } catch (Exception e) {
        log.error("\tSocket bind failure ({})", e.getMessage());
    } finally {
        log.info("\tShutting down and recycling...");
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
        Configuration.shutdownRelays();
    }
    System.exit(0);
}
 

@Override
protected void doStart() {
    try {
        bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class);
        bootstrap.option(ChannelOption.SO_BACKLOG, 1024);
        bootstrap.option(ChannelOption.SO_REUSEADDR, true);
        bootstrap.childOption(ChannelOption.TCP_NODELAY, true);
        bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
        bootstrap.childOption(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000);
        bootstrap.localAddress(serverconfig.getListenPort());
        bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws IOException {

                ch.pipeline().addLast("idleState", new IdleStateHandler(0, 0, 60, TimeUnit.SECONDS));
                ch.pipeline().addLast("heartbeat", new HeartbeatHandler());
                ch.pipeline().addLast(new KyroMsgDecoder());
                ch.pipeline().addLast(new KyroMsgEncoder());
                ch.pipeline().addLast("invoker", new NettyServerHandler());
            }
        });

        ChannelFuture channelFuture = this.bootstrap.bind().sync();
        //        channelFuture.channel().closeFuture().sync();
        logger.info("server started on port:" + serverconfig.getListenPort());
        respScheduler.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                scanResponseTable(5000);
            }
        }, 60 * 1000, 60 * 1000, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        logger.error("", e);
        System.exit(-1);
    }
}
 

@Override
public void start(int port, int backlog, int listenThreadCount, int handleThreadCount, boolean forceExit) {

    EventLoopGroup bossGroup = new NioEventLoopGroup(listenThreadCount);
    EventLoopGroup workerGroup = new NioEventLoopGroup(handleThreadCount);

    server = new ServerBootstrap();
    server.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).localAddress(port)
            .option(ChannelOption.SO_BACKLOG, backlog).childHandler(new HttpServerInitializer(this));

    try {
        this.host = NetworkHelper.getLocalIP();
        this.port = port;

        // Start the server.
        server.bind().sync();

        if (log.isTraceEnable()) {
            log.info(this, "HttpServiceComponent[" + this.cName + "] for feature[" + this.feature
                    + "] started SUCCESS: port=" + this.port);
        }
    }
    catch (InterruptedException e) {
        log.err(this, "HttpServiceComponent[" + this.cName + "] for feature[" + this.feature + "] starts FAIL.", e);

        if (forceExit == true) {
            System.exit(-1);
        }

    }
}
 

public static void main(String[] args) throws Exception {
    // Configure SSL.
    //final SslContext sslCtx;
    ConfigurationManager.getConfigInstance().setProperty("app.localLog.path","E:\\Tools\\apache-tomcat-7.0.68\\logs");

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new HttpHelloWorldServerInitializer());


        Channel ch = b.bind(PORT).sync().channel();



        System.err.println("Open your web browser and navigate to " +
                (SSL? "https" : "http") + "://127.0.0.1:" + PORT + '/');

        ch.closeFuture().sync();

    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

@Override
public void start() {
    int heartTime = transaction_netty_heart_time+10;
    txCoreServerHandler = new TxCoreServerHandler(mqTxManagerService);
    bossGroup = new NioEventLoopGroup(50); // (1)
    workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast("timeout", new IdleStateHandler(heartTime, heartTime, heartTime, TimeUnit.SECONDS));

                        ch.pipeline().addLast(new LengthFieldPrepender(4, false));
                        ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));

                        ch.pipeline().addLast(txCoreServerHandler);
                    }
                });

        // Start the server.
        b.bind(Constants.socketPort);
        logger.info("Socket started on port(s): " + Constants.socketPort + " (socket)");

    } catch (Exception e) {
        // Shut down all event loops to terminate all threads.
        e.printStackTrace();
    }
}
 

public AbstractServer(ServerConfig config, int port) throws InterruptedException {
    this.port = port;
    this.config = config;
    serverStateRef = new AtomicReference<>(AbstractServer.ServerState.Created);
    boss = new NioEventLoopGroup();
    worker = new NioEventLoopGroup();
    bootstrap = new ServerBootstrap();

    bootstrap.group(boss, worker).channel(NioServerSocketChannel.class)
            .option(ChannelOption.SO_BACKLOG, config.getSoBacklog())
            .option(ChannelOption.SO_KEEPALIVE, config.getSoKeepAlive())
            .option(ChannelOption.TCP_NODELAY, config.getTcpNoDelay())
            .handler(new LoggingHandler(LogLevel.INFO)).childHandler(newChannelInitializer());
}
 

@PostConstruct
public void start() throws Exception {

    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workGroup)
            .channelFactory(NioServerSocketChannel::new)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) throws Exception {

                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
                    pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
                    pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                    pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
                    pipeline.addLast("idleStateHandler", new IdleStateHandler(300, 0, 0));
                    pipeline.addLast("handler", nodeChannelInBoundHandler);
                }
            })
            .option(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_REUSEADDR, true)
            .option(ChannelOption.SO_SNDBUF, 2048)
            .option(ChannelOption.SO_RCVBUF, 1024);
    bootstrap.bind(goPushNodeServerConfig.getNodePort()).sync();
    log.info("Node server start successful! listening port: {}", goPushNodeServerConfig.getNodePort());
}
 

@PostConstruct
public void start() throws Exception {


    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workGroup)
            .channelFactory(NioServerSocketChannel::new)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel socketChannel) throws Exception {

                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("logHandler", new LoggingHandler());
                    pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
                    pipeline.addLast("stringDecoder", new StringDecoder(CharsetUtil.UTF_8));
                    pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                    pipeline.addLast("stringEncoder", new StringEncoder(CharsetUtil.UTF_8));
                    pipeline.addLast("idleStateHandler", new IdleStateHandler(300, 0, 0));

                    pipeline.addLast("handler", deviceChannelInboundHandler);
                }
            })

            .option(ChannelOption.SO_BACKLOG, 1000000)  //连接队列深度
            .option(ChannelOption.TCP_NODELAY, true)   //设置 no_delay
            .option(ChannelOption.SO_SNDBUF, 2048).option(ChannelOption.SO_RCVBUF, 1024)
            .childOption(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_REUSEADDR, true)
            .childOption(ChannelOption.SO_SNDBUF, 2048).childOption(ChannelOption.SO_RCVBUF, 1024)
            .childOption(ChannelOption.SO_LINGER, 0);

    bootstrap.bind(goPushNodeServerConfig.getDevicePort()).sync();
    log.info("device server start successful! listening port: {}", goPushNodeServerConfig.getDevicePort());
}
 

/**
 * 初始化
 *
 * @throws Exception
 */
public void startServer(int port) throws Exception {
    NioEventLoopGroup bossGroup = new NioEventLoopGroup(1);
    NioEventLoopGroup workGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workGroup)
                .channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler())
                .childHandler(new ChannelInitializer<Channel>() {
                    @Override
                    protected void initChannel(Channel ch) throws Exception {
                        ch.pipeline().addLast(new RequestWrapperCodec())
                                .addLast(new ResponseWrapperCodec())
                                .addLast(new BusinessServerHandler());
                    }
                });
        ChannelFuture channelFuture = bootstrap.bind(port).sync();
        channelFuture.addListener((future) -> System.out.println("server listening at: " + ((ChannelFuture) future).channel()));
        channelFuture.channel().closeFuture().sync();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }
}
 

public void run() {
	ServerBootstrap b = new ServerBootstrap();// 引导辅助程序

	bossGroup = new NioEventLoopGroup(BIZGROUPSIZE);
	workerGroup = new NioEventLoopGroup(BIZTHREADSIZE);
	try {
		b.group(bossGroup, workerGroup);
		b.channel(NioServerSocketChannel.class);// 设置nio类型的channel
		b.childHandler(new ChannelInitializer<SocketChannel>() {// 有连接到达时会创建一个channel
			protected void initChannel(SocketChannel ch) throws Exception {
				logger.debug("客户端:{} 初始化", ch.remoteAddress());
				// pipeline管理channel中的Handler，在channel队列中添加一个handler来处理业务
				ch.pipeline().addLast("frameDecoder",
						new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
				ch.pipeline().addLast("frameEncoder", new LengthFieldPrepender(4));
				ch.pipeline().addLast("decoder", msgPackDecode);
				ch.pipeline().addLast("encoder", msgPackEncode);
				ch.pipeline().addLast(serverHandler);
			}
		});
		b.option(ChannelOption.SO_BACKLOG, 128);
		b.childOption(ChannelOption.SO_KEEPALIVE, true);
		logger.info("server start : {}", port);
		ChannelFuture f = b.bind(port).sync();// 配置完成，开始绑定server，通过调用sync同步方法阻塞直到绑定成功
		channel = f.channel();
		f.channel().closeFuture().sync();// 应用程序会一直等待，直到channel关闭
	} catch (Exception e) {
		e.printStackTrace();
	}

}
 

public void start() {
	try {

		FSClient.start();

		Config config = ConfigXmlLoader.load(CONFIG);
		PacLoader.load(PAC);

		bossGroup = new NioEventLoopGroup(1);
		workerGroup = new NioEventLoopGroup();
		bootstrap = new ServerBootstrap();
		trafficHandler = new GlobalTrafficShapingHandler(
				Executors.newScheduledThreadPool(2), 1000);

		bootstrap
				.group(bossGroup, workerGroup)
				.channel(NioServerSocketChannel.class)
				.childHandler(
						new SocksServerInitializer(config, trafficHandler));

		logger.info("Start At Port " + config.get_localPort());
		startMBean();
		bootstrap.bind(config.get_localPort()).sync().channel()
				.closeFuture().sync();
	} catch (Exception e) {
		logger.error("start error", e);
	} finally {
		stop();
	}
}
 

public void start() throws InterruptedException {
    ServerBootstrap b = new ServerBootstrap();
    b.option(ChannelOption.SO_LINGER, socketLinger);
    b.option(ChannelOption.SO_REUSEADDR, reuseAddress);
    b.group(bossGroup, workerGroup)
        .channel(NioServerSocketChannel.class)
        .handler(new LoggingHandler(LogLevel.INFO))
        .childHandler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                p.addLast(new HttpRequestDecoder());
                p.addLast(new HttpObjectAggregator(1024 * 1024 * 5));
                p.addLast(new HttpResponseEncoder());
                p.addLast(new HttpContentCompressor());
                if (corsConfiguration.hasHeader()) {
                    p.addLast(new CorsHandler(
                        CorsConfig
                            .withOrigin(corsConfiguration.getHeader())
                            .allowedRequestHeaders(HttpHeaders.Names.CONTENT_TYPE)
                            .allowedRequestMethods(HttpMethod.POST)
                        .build())
                    );
                }
                p.addLast(jsonRpcWeb3FilterHandler);
                p.addLast(jsonRpcWeb3ServerHandler);
            }
        });
    b.bind(host, port).sync();
}
 

public void start(int port) {
    // TODO review listening use
    listening = true;

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    EthereumChannelInitializer ethereumChannelInitializer = ethereumChannelInitializerFactory.newInstance("");

    ethereumListener.trace("Listening on port " + port);


    try {
        ServerBootstrap b = new ServerBootstrap();

        b.group(bossGroup, workerGroup);
        b.channel(NioServerSocketChannel.class);

        b.option(ChannelOption.SO_KEEPALIVE, true);
        b.option(ChannelOption.MESSAGE_SIZE_ESTIMATOR, DefaultMessageSizeEstimator.DEFAULT);
        b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, config.peerConnectionTimeout());

        b.handler(new LoggingHandler());
        b.childHandler(ethereumChannelInitializer);

        // Start the client.
        logger.info("Listening for incoming connections, port: [{}] ", port);
        logger.info("NodeId: [{}] ", Hex.toHexString(config.nodeId()));

        ChannelFuture f = b.bind(port).sync();

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
        logger.debug("Connection is closed");

        // TODO review listening use
        listening = false;
    } catch (Exception e) {
        logger.debug("Exception: {} ({})", e.getMessage(), e.getClass().getName());
        throw new Error("Server Disconnected");
    } finally {
        workerGroup.shutdownGracefully();

    }
}
 

@Override
public void start() {
    new Thread(() -> {
        group = new NioEventLoopGroup();
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(group)
                .channel(NioServerSocketChannel.class)
                .childHandler(serverChannelInitializer);
        ChannelFuture channelFuture = bootstrap.bind(new InetSocketAddress(30232));
        channelFuture.addListener(future -> startListenerHandle(future, launchListener));
    }).start();
}
 

public static Class<? extends ServerSocketChannel> getServerSocketChannel(){
  if(SUPPORTS_EPOLL){
    return EpollServerSocketChannel.class;
  }else{
    return NioServerSocketChannel.class;
  }
}
 

@Override
public synchronized void start() {
    bossGroup = new NioEventLoopGroup(); // (1)
    workerGroup = new NioEventLoopGroup();
    try {
        b = new ServerBootstrap(); // (2)
        b.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class) // (3)
                .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {

                        ch.pipeline().addLast(new ByteArrayDecoder());
                        ch.pipeline().addLast(new ByteArrayEncoder());

                        ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));

                        ch.pipeline().addLast(new IdleStateHandler(heartTime, heartTime, heartTime, TimeUnit.SECONDS));

                        ch.pipeline().addLast(new DeliveryHandler(deliveryService));

                    }
                })
                .option(ChannelOption.SO_BACKLOG, 128)          // (5)
                .childOption(ChannelOption.SO_KEEPALIVE, true); // (6)

        // Bind and start to accept incoming connections.
        b.bind(settingService.getDeliveryPort());

        logger.info("socket: "+settingService.getDeliveryPort()+" starting....");
        // Wait until the server socket is closed.
        // In this example, this does not happen, but you can do that to gracefully
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

public NioConnDroppingServer(final int port, final int dropEveryRequest)
throws InterruptedException {
	dispatchGroup = new NioEventLoopGroup();
	workerGroup = new NioEventLoopGroup();
	final ServerBootstrap bootstrap = new ServerBootstrap()
		.group(dispatchGroup, workerGroup)
		.channel(NioServerSocketChannel.class)
		.childHandler(
			new ChannelInitializer<SocketChannel>() {
				@Override
				public final void initChannel(final SocketChannel ch) {
					ch.pipeline().addLast(
						new SimpleChannelInboundHandler<Object>() {
							@Override
							protected final void channelRead0(
								final ChannelHandlerContext ctx, final Object msg
							) throws Exception {
								if(0 == reqCounter.incrementAndGet() % dropEveryRequest) {
									final Channel conn = ctx.channel();
									System.out.println("Dropping the connection " + conn);
									conn.close();
								}
							}
						}
					);
				}
			}
		);

	bindFuture = bootstrap.bind(port).sync();
}
 

public void run(final int port, final String url) throws Exception{
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workGroup = new NioEventLoopGroup();
    try{
        ServerBootstrap server = new ServerBootstrap();
        server.group(bossGroup, workGroup)
              .channel(NioServerSocketChannel.class)
              .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    //增加HTTP请求消息解码器
                    ch.pipeline().addLast("http-decoder", new HttpRequestDecoder());
                    
                    //将多个HTTP消息转换成多个单一的FullHttpRequest或者FullHttpResponse
                    ch.pipeline().addLast("http-aggregator", new HttpObjectAggregator(65535));
                    
                    //增加Http响应消息编码器
                    ch.pipeline().addLast("http-encoder", new HttpResponseEncoder());
                    
                    //支持异步发送大码流
                    ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler());
                    
                    //增加文件服务器的业务处理器
                    ch.pipeline().addLast("fileServerHandler", new NettyHttpFileServerHandler(url));
                }
              });
        ChannelFuture future = server.bind(port).sync();
        future.channel().closeFuture().sync();
    }finally{
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }
}
 

public static Class<? extends ServerSocketChannel> getServerSocketChannel(){
  if(SUPPORTS_EPOLL){
    return EpollServerSocketChannel.class;
  }else{
    return NioServerSocketChannel.class;
  }
}
 

public NetworkManager(EventLoopGroup bossGroup, EventLoopGroup workerGroup, ChannelInitializer<SocketChannel> clientInitializer, String host, int port)
{
	// @formatter:off
	_serverBootstrap = new ServerBootstrap()
		.group(bossGroup, workerGroup)
		.channel(NioServerSocketChannel.class)
		.childHandler(clientInitializer)
		.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
	// @formatter:on
	_host = host;
	_port = port;
}
 

public void addPublicEndpoint(InetAddress address, int port)
{
	synchronized (this.endpoints)
	{
		final EventLoopGroup boss = new NioEventLoopGroup();
		final EventLoopGroup worker = new NioEventLoopGroup();
		final ServerBootstrap b = new ServerBootstrap()
				.group(boss, worker)
				.childHandler(new ChannelInitializer<Channel>() {
					@Override
					protected void initChannel(Channel ch) throws Exception
					{
						final PacketRegistry registry = NetworkEngine.this.packetRegistry;
						final NetworkDispatcher dispatch = new NetworkDispatcher(
								NetworkEngine.this, NetworkSide.SERVER);
						NetworkEngine.this.dispatchers.add(dispatch);

						ch.pipeline()
								.addLast(new VarInt21FrameDecoder())
								.addLast(new PacketDecoder(NetworkSide.SERVER, registry))
								.addLast(new VarInt21FrameEncoder())
								.addLast(new PacketEncoder(NetworkSide.CLIENT, registry))
								.addLast(dispatch);
					}
				})
				.channel(NioServerSocketChannel.class);

		//Host and wait until done
		b.localAddress(address, port).bind().syncUninterruptibly();
	}
}
 

@Override
public void run()
{
	System.out.println("Starting Server...");
	EventLoopGroup boss = new NioEventLoopGroup();
	EventLoopGroup worker = new NioEventLoopGroup();
	try
	{
		ServerBootstrap b = new ServerBootstrap();
		b.group(boss, worker)
				.channel(NioServerSocketChannel.class)
				.childHandler(new ServerChannelInitializer());

		System.out.println("Connecting...");
		Channel ch = b.bind(ChubbyCat.PORT).sync().channel();
		System.out.println("Connection Established!");

		//Process stuff

		ch.closeFuture().sync();
	}
	catch (Exception e)
	{
		e.printStackTrace();
	}
	finally
	{
		System.out.println("Stopping Server...");
		boss.shutdownGracefully();
		worker.shutdownGracefully();
	}

	System.out.println("Connection Ended!");
}