EchoServer.java

package com.yichao.woo.netty.in.action.ch2;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.oio.OioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.oio.OioServerSocketChannel;

import java.net.InetSocketAddress;

public class EchoServer {
    private final int port;

    public EchoServer(int port) {
        this.port = port;
    }

    public static void main(String[] args) throws InterruptedException {
        new EchoServer(5555).start();
    }

    public void start() throws InterruptedException {
        EventLoopGroup group = new OioEventLoopGroup();
        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(group)
                    .channel(OioServerSocketChannel.class)
                    .localAddress(new InetSocketAddress(port))
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new EchoServerHandler());
                        }
                    });
            ChannelFuture channelFuture = bootstrap.bind().sync();
            channelFuture.channel().closeFuture().sync();
            System.out.println("Server started");
        } finally {
            group.shutdownGracefully().syncUninterruptibly();
        }

    }
}