처음 JBoss Netty를 사용하는 경우

죄송합니다. 시간을 낭비하는 경우 죄송합니다.하지만 Netty (jboss)를 처음 사용하는 순간이며, 내가 무엇을하고 있는지 전혀 알지 못합니다. 여기에 내가 쓰고 싶은 내 서버의 이중 :처음 JBoss Netty를 사용하는 경우

public final class UpdateServer extends SimpleChannelHandler { 

private static ChannelGroup channels; 

private static final int PORT = 55555; 
private static final double VERSION = 1.66; 

public static void main(String[] args) { 
    init(); 
} 

public static final void init() { 
    new UpdateServer(); 
} 

/* 
* throws exeption so if cant handle channel server closes 
*/ 
private UpdateServer() { 
    ChannelFactory factory = new NioServerSocketChannelFactory(Executors.newCachedThreadPool(), Executors.newCachedThreadPool()); 

    ServerBootstrap bootstrap = new ServerBootstrap(factory); 

    ChannelPipeline pipeline = bootstrap.getPipeline(); 
    pipeline.addLast("handler", this); 

    bootstrap.setOption("child.tcpNoDelay", true); 
    bootstrap.setOption("child.keepAlive", true); 

    bootstrap.bind(new InetSocketAddress(PORT)); 
    System.out.println("Listening for connections on port: "+PORT); 
} 

@Override 
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) { 
    channels.add(e.getChannel()); 
} 

@Override 
public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e) { 
    channels.remove(e.getChannel()); 
} 

@Override 
public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) { 
    System.out.println("Connected!"); 
    e.getChannel().write(VERSION); 
    ctx.getChannel().write(VERSION); 
} 

@Override 
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) { 

} 

@Override 
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) { 
    System.out.println("Message Recieved"); 
} 

@Override 
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent ee) throws Exception { 

} 

}

하지만 난 0.0 읽기, double 값 클라이언트를 실행할 때 : 0.0에서 인쇄 왜

public class UpdateChecker { 

public static void main(String[] args) throws Exception { 
    SocketChannel socketChannel = SocketChannel.open(new InetSocketAddress(InetAddress.getByName("127.0.0.1"), 55555)); 
    socketChannel.configureBlocking(false); 
    ByteBuffer buffer = ByteBuffer.allocateDirect(8); 
    socketChannel.read(buffer); 
    double value = buffer.getDouble(); 
    System.out.println(value); 
} 

}

는 잘 모르겠어요 그건 내가 쓴 것이 아니기 때문에 어떻게 수정해야합니까?

감사합니다.

출처

2013-02-07 Jonathan Beaudoin