.net core 使用控制台开发简单的web服务器，接收http请求并响应请求

        static void Main(string[] args)
        {
            WebServer.Start();

            Console.Read();
        }

    public class WebServer
    {
        static Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

        public static void Start()
        {
            socket.Bind(new IPEndPoint(IPAddress.Any, 8002));

            socket.Listen(100);

            //接收客户端的 Socket请求
            socket.BeginAccept(OnAccept, socket);

            Console.WriteLine("当前web服务器启动成功,端口号为：8002");
        }

        //接收请求
        public static void OnAccept(IAsyncResult async)
        {
            var serverSocket = async.AsyncState as Socket;

            //获取到客户端的socket
            var clientSocket = serverSocket.EndAccept(async);

            //进行下一步监听
            serverSocket.BeginAccept(OnAccept, serverSocket);

            var bytes = new byte[10000];

            //获取socket的内容
            var len = clientSocket.Receive(bytes);

            //将 bytes[] 转换 string
            var request = Encoding.UTF8.GetString(bytes, 0, len);

            var response = string.Empty;

            if (!string.IsNullOrEmpty(request) && !request.Contains("favicon.ico"))
            {
                // /1.html
                var filePath = request.Split("\r\n")[0].Split(" ")[1].TrimStart('/');

                //获取文件内容
                response = System.IO.File.ReadAllText(filePath, Encoding.UTF8);
            }


            //按照http的响应报文返回
            var responseHeader = string.Format(@"HTTP/1.1 200 OK
Date: Sun, 26 Aug 2018 03:33:36 GMT
Server: nginx
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache
Pragma: no-cache
Via: hngd_ax63.139
X-Via: 1.1 tjhtapp63.147:3800, 1.1 cbsshdf-A4-2-D-14.32:8101
Connection: keep-alive
Content-Length: {0}

", Encoding.UTF8.GetByteCount(response));

            //返回给客户端了
            clientSocket.Send(Encoding.UTF8.GetBytes(responseHeader));
            clientSocket.Send(Encoding.UTF8.GetBytes(response));

            clientSocket.Close();
        }
    }

启动项目，访问：http://127.0.0.1:8002/1.html