第三課 Netty客戶端

public class Client {

    public static void main(String[] args) {

        ClientBootstrap clientBootstrap = new ClientBootstrap();
        ExecutorService boss = Executors.newCachedThreadPool();
        ExecutorService worker = Executors.newCachedThreadPool();
        clientBootstrap.setFactory(new NioClientSocketChannelFactory(boss,
                worker));
        clientBootstrap.setPipelineFactory(new ChannelPipelineFactory() {

            @Override
            public ChannelPipeline getPipeline() throws Exception {
                ChannelPipeline pipeline = Channels.pipeline();
                pipeline.addLast("decoder", new StringDecoder());
                pipeline.addLast("encoder", new StringEncoder());
                pipeline.addLast("hiHandler", new ClientHandler());
                return pipeline;
            }
        });
        ChannelFuture connect = clientBootstrap.connect(new InetSocketAddress(
                "127.0.0.1", 8000));
        Channel channel = connect.getChannel();
        System.out.println("client start");

        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("請輸入");
            channel.write(scanner.next());
        }

    }
}

public class ClientHandler extends SimpleChannelHandler {

    @Override
    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
            throws Exception {
        String s = (String) e.getMessage();
        System.out.println(s);
        super.messageReceived(ctx, e);
    }

    @Override
    public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e)
            throws Exception {
        System.out.println("channelConnected");
        super.channelConnected(ctx, e);
    }

    @Override
    public void channelDisconnected(ChannelHandlerContext ctx,
            ChannelStateEvent e) throws Exception {
        System.out.println("channelDisconnected");
        super.channelDisconnected(ctx, e);
    }

    @Override
    public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e)
            throws Exception {
        System.out.println("channelClosed");
        super.channelClosed(ctx, e);
    }

}