專案需要使用netty做中轉伺服器，同時支援兩種不同協議的客戶端，經過幾天查詢資料終於找到合適的方案了，同時感謝Netty權威指南及論壇問答,開始貼程式碼

客戶端1==》socket

 1 public class Bluetooth implements Runnable {
 2     //藍芽
 3  
 4     private int port;
 5     @Override
 6     public void run() {
 7         System.out.println("--------進入藍芽---------");
 8         EventLoopGroup bossGroup = new
 
 NioEventLoopGroup();
 9         EventLoopGroup workGroup = new NioEventLoopGroup();
10         try {
11             ServerBootstrap b = new ServerBootstrap();
12             b.group(bossGroup, workGroup);
13             b.channel(NioServerSocketChannel.class);
14             b.childHandler(new ChannelInitializer<SocketChannel>() {
 
15                 @Override
16                 public void initChannel(SocketChannel ch) throws Exception {
17                     System.out.println("chhhh"+ch.id());
18                             // 註冊handler
19                             /*ch.pipeline().addLast("http-codec", new HttpServerCodec());
 
20                             ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));
21                             ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler());*/
22                     ch.pipeline().addLast(new SimpleServerHandler());
23                 }
24             });
25 //            b.childHandler(new ChannelFilter());
26             System.out.println("平臺監聽開啟....");
27             Channel ch = b.bind(5500).sync().channel();
28             ch.closeFuture().sync();
29  
30         } catch (Exception e) {
31             e.printStackTrace();
32         }finally{
33             //優雅的退出程式
34             bossGroup.shutdownGracefully();
35             workGroup.shutdownGracefully();
36         }
37     }
38 

客戶端2==》http

public class Myweb implements Runnable {
    //Myweb
 
    private int port;
    @Override
    public void run() {
        System.out.println("--------進入web---------");
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workGroup);
            b.channel(NioServerSocketChannel.class);
            b.childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel e) throws Exception {
                    System.out.println("chhhh"+e.id());
                    e.pipeline().addLast("http-codec", new HttpServerCodec());
                    e.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));
                    e.pipeline().addLast("http-chunked", new ChunkedWriteHandler());
                    e.pipeline().addLast(new SimpleServerHandler());
                }
            });
//            b.childHandler(new ChannelFilter());
            System.out.println("平臺監聽開啟....");
            Channel ch = b.bind(8888).sync().channel();
            ch.closeFuture().sync();
 
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            //優雅的退出程式
            bossGroup.shutdownGracefully();
            workGroup.shutdownGracefully();
        }
    }
}

main==>開啟兩個監聽執行緒

public class main {
    private int port;
 
    public main(int port) {
        this.port = port;
    }
 
    public void run() throws Exception {
 
    }
 
    public static void main(String[] args) throws Exception {
//        new main(5500).run();
        Bluetooth bluetooth = new Bluetooth();
        Myweb myweb = new Myweb();
 
        Thread th1 = new Thread(bluetooth);
        Thread th2 = new Thread(myweb);
        th1.start();
        th2.start();
 
    }
}

Handler程式碼就不貼了，網上很多，主要是通過多執行緒分別使用不同編解碼器，

對不同客戶端的協議進行解析。同時將Chnnel通道儲存在Map集合中，兩個執行緒可共享這個Chnnel。











參考：https://blog.csdn.net/lmianhuatang/article/details/79675790