使用netty按照Redis协议发消息完成set key value 命令

public class TestRedis {
    public static void main(String[] args) {
      //换行符  '\n'
         final byte[] LINE = {13, 10};
        NioEventLoopGroup worker = new NioEventLoopGroup();
        try {
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.channel(NioSocketChannel.class);
            bootstrap.group(worker);
            bootstrap.handler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO));
                    ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                        @Override
                        public void channelActive(ChannelHandlerContext ctx) throws Exception {
                            ByteBuf buffer = ctx.alloc().buffer();
                            buffer.writeBytes("*3".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("$3".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("set".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("$4".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("name".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("$8".getBytes());
                            buffer.writeBytes(LINE);
                            buffer.writeBytes("zhangsan".getBytes());
                            buffer.writeBytes(LINE);
                            ctx.writeAndFlush(buffer);
                        }
                        @Override
                        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                            ByteBuf byteBuf = (ByteBuf) msg;
                            System.out.println(byteBuf.toString(Charset.defaultCharset()));
                        }
                    });
                }
            });
            ChannelFuture channelFuture = bootstrap.connect("192.168.56.101", 6379).sync();
            channelFuture.channel().closeFuture().sync();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            worker.shutdownGracefully();
        }
    }
}