tcp-proxy-netty/src/main/java/com/xiaobao/gateway/protocol/udp/UDPEchoServer.java

package com.xiaobao.gateway.protocol.udp;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioDatagramChannel;

public class UDPEchoServer {
    static final int PORT = Integer.parseInt(System.getProperty("port", "8006"));

    public static void main(String[] args) {
        EventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap bootstrap = new Bootstrap();
            bootstrap
                .group(group)
                .channel(NioDatagramChannel.class)
                .option(ChannelOption.SO_BROADCAST, true)
                .handler(new ClientProxyHandler());
            Channel channel = bootstrap.bind(PORT).sync().channel();
            channel.closeFuture().sync();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        } finally {
            group.shutdownGracefully();
        }
    }
}