DotNetty學習（二）——世界上最簡單的服務（Discard)客戶端

總覽鏈接：

https://blog.csdn.net/a1234012340a/article/details/91040073

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客戶端代碼：

static async Task RunClientAsync()
        {
            var group = new MultithreadEventLoopGroup();
            try
            {
                var bootstrap = new Bootstrap();
                bootstrap
                    .Group(group)
                    .Channel<TcpSocketChannel>()
                    .Option(ChannelOption.TcpNodelay, true)
                    .Handler(
                        new ActionChannelInitializer<ISocketChannel>(
                            channel =>
                            {
                                IChannelPipeline pipeline = channel.Pipeline;
                                pipeline.AddLast(new LoggingHandler());
                                pipeline.AddLast("framing-enc", new LengthFieldPrepender(2));
                                pipeline.AddLast("framing-dec", new LengthFieldBasedFrameDecoder(ushort.MaxValue, 0, 2, 0, 2));
                                pipeline.AddLast(new IdleStateHandler(5, 0, 0));
                                pipeline.AddLast("echo", new EchoClientHandler());
                            }));
                IPAddress ip = IPAddress.Parse("127.0.0.1");
                IChannel clientChannel = await bootstrap.ConnectAsync(new IPEndPoint(ip, 8007));
                // 建立死循環，類同於While(true)
                for (; ; ) // (4)
                {
                    Console.WriteLine("input you data:");
                    // 根據設置建立緩存區大小
                    IByteBuffer initialMessage = Unpooled.Buffer(256); // （1）
                    string r = Console.ReadLine();
                    // 將數據流寫入緩衝區
                    initialMessage.WriteBytes(Encoding.UTF8.GetBytes(r ?? throw new InvalidOperationException())); // (2)
                    // 將緩衝區數據流寫入到管道中
                    await clientChannel.WriteAndFlushAsync(initialMessage); // (3)
                    if (r.Contains("bye"))
                        break;
                }

                Console.WriteLine("byebye");


                await clientChannel.CloseAsync();
            }
            finally
            {
                await group.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1));
            }
        }

        static void Main() => RunClientAsync().Wait();

 

客戶端Handler代碼：

readonly IByteBuffer initialMessage;

        public override void ChannelActive(IChannelHandlerContext context) => context.WriteAndFlushAsync(this.initialMessage);

        public override void ChannelRead(IChannelHandlerContext context, object message)
        {
            #region  無操作
            //什麼也不想做
            #endregion
        }

        public override void ChannelReadComplete(IChannelHandlerContext context) => context.Flush();

        public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
        {
            Console.WriteLine("Exception: " + exception);
            context.CloseAsync();
        }

 

至此客戶端打完收工

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完全個人研究，有錯希望大神糾正。也可留下您的聯繫方式，共同探討

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作者：Henny_CHN

轉載請標明出處，原文地址：  

https://blog.csdn.net/a1234012340a/article/details/93138687

如果感覺本文對您有幫助，請留下您的贊，您的支持是我堅持寫作最大的動力，謝謝！