Java Netty Hello Word 教程

Netty 服务端代码 

public class HelloServer {  
  
    public static void main(String args[]) {  
        // Server服务启动器  
        ServerBootstrap bootstrap = new ServerBootstrap(  
                new NioServerSocketChannelFactory(  
                        Executors.newCachedThreadPool(),  
                        Executors.newCachedThreadPool()));  
        // 设置一个处理客户端消息和各种消息事件的类(Handler)  
        bootstrap  
                .setPipelineFactory(new ChannelPipelineFactory() {  
                    @Override  
                    public ChannelPipeline getPipeline()  
                            throws Exception {  
                        return Channels  
                                .pipeline(new HelloServerHandler());  
                    }  
                });  
        // 开放8000端口供客户端访问。  
        bootstrap.bind(new InetSocketAddress(8000));  
    }  
  
    private static class HelloServerHandler extends  
            SimpleChannelHandler {  
  
        /** 
         * 当有客户端绑定到服务端的时候触发,打印"Hello world, I'm server." 
         *  
         * @alia OneCoder 
         * @author lihzh 
         */  
        @Override  
        public void channelConnected(  
                ChannelHandlerContext ctx,  
                ChannelStateEvent e) {  
            System.out.println("Hello world, I'm server.");  
        }  
    }  
}  
dsssNetty 客户端代码 

public class HelloClient {  
  
    public static void main(String args[]) {  
        // Client服务启动器  
        ClientBootstrap bootstrap = new ClientBootstrap(  
                new NioClientSocketChannelFactory(  
                        Executors.newCachedThreadPool(),  
                        Executors.newCachedThreadPool()));  
        // 设置一个处理服务端消息和各种消息事件的类(Handler)  
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {  
            @Override  
            public ChannelPipeline getPipeline() throws Exception {  
                return Channels.pipeline(new HelloClientHandler());  
            }  
        });  
        // 连接到本地的8000端口的服务端  
        bootstrap.connect(new InetSocketAddress(  
                "127.0.0.1", 8000));  
    }  
  
    private static class HelloClientHandler extends SimpleChannelHandler {  
  
  
        /** 
         * 当绑定到服务端的时候触发,打印"Hello world, I'm client." 
         *  
         * @alia OneCoder 
         * @author lihzh 
         */  
        @Override  
        public void channelConnected(ChannelHandlerContext ctx,  
                ChannelStateEvent e) {  
            System.out.println("Hello world, I'm client.");  
        }  
    }  
}