package com.server;

import java.net.Socket;

public class Client {

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

        Socket socket = new Socket("127.0.0.1", 10101);

        socket.getOutputStream().write("hello".getBytes());

        socket.close();

    }

}

package com.server;

import java.net.InetSocketAddress;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

import org.jboss.netty.bootstrap.ServerBootstrap;

import org.jboss.netty.channel.ChannelPipeline;

import org.jboss.netty.channel.ChannelPipelineFactory;

import org.jboss.netty.channel.Channels;

import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;

import org.jboss.netty.handler.codec.string.StringDecoder;

import org.jboss.netty.handler.codec.string.StringEncoder;

public class Server {

    public static void main(String[] args) {

        //服务类

        ServerBootstrap bootstrap = new ServerBootstrap();

        //boss线程监听端口，worker线程负责数据读写

        ExecutorService boss = Executors.newCachedThreadPool();

        ExecutorService worker = Executors.newCachedThreadPool();

        //设置niosocket工厂

        bootstrap.setFactory(new NioServerSocketChannelFactory(boss, worker));

        //设置管道的工厂

        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {

            @Override

            public ChannelPipeline getPipeline() throws Exception {

                ChannelPipeline pipeline = Channels.pipeline();

                pipeline.addLast("handler1", new MyHandler1());

                pipeline.addLast("handler2", new MyHandler2());

                return pipeline;

            }

        });

        bootstrap.bind(new InetSocketAddress(10101));

        System.out.println("start!!!");

    }

}

package com.server;

import org.jboss.netty.buffer.ChannelBuffer;

import org.jboss.netty.channel.ChannelHandlerContext;

import org.jboss.netty.channel.MessageEvent;

import org.jboss.netty.channel.SimpleChannelHandler;

import org.jboss.netty.channel.UpstreamMessageEvent;

public class MyHandler1 extends SimpleChannelHandler {

    @Override

    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {

        ChannelBuffer buffer = (ChannelBuffer)e.getMessage();

        byte[] array = buffer.array();

        String message = new String(array);

        System.out.println("handler1:" + message);

        //传递

        ctx.sendUpstream(new UpstreamMessageEvent(ctx.getChannel(), "abc", e.getRemoteAddress()));

        ctx.sendUpstream(new UpstreamMessageEvent(ctx.getChannel(), "efg", e.getRemoteAddress()));

    }

}

package com.server;

import org.jboss.netty.channel.ChannelHandlerContext;

import org.jboss.netty.channel.MessageEvent;

import org.jboss.netty.channel.SimpleChannelHandler;

public class MyHandler2 extends SimpleChannelHandler {

    @Override

    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {

        String message = (String)e.getMessage();

        System.out.println("handler2:" + message);

    }

}