HttpListener 流利简单的API

static void Main()

    {

        using (var server = new SimpleWebServer("http://localhost:12345/", @"D:/webroot"))

        {

            Console.WriteLine("http服务开始监听......");

            server.Start();

            while (true)

            {

                var inStr = Console.ReadLine();

                Debug.Assert(inStr != null, "inStr != null");

                if (inStr.Equals("STOP", StringComparison.OrdinalIgnoreCase))

                {

                    break;

                }

                Console.WriteLine("输入 stop  可停止服务！");

            }

        }

    }

public class SimpleWebServer : IDisposable

    {

        private readonly HttpListener _httpListener;

        private readonly string _baseFolder;

        public SimpleWebServer(string uriPrefix, string baseFloder)

        {

            _httpListener = new HttpListener();

            _httpListener.Prefixes.Add(uriPrefix);

            _baseFolder = baseFloder;

        }

        public async void Start()

        {

            _httpListener.Start();

            while (true)

            {

                try

                {

                    var context = await _httpListener.GetContextAsync();

                    #pragma warning disable 4014

                    Task.Factory.StartNew(() =>{

                        PrcessRequestAsync(context);

                    });

                }

                catch (HttpListenerException exception)

                {

                    Console.WriteLine(exception);

                    break;

                }

                catch (InvalidOperationException exception)

                {

                    Console.WriteLine(exception);

                    break;

                }

            }

        }

        private async void PrcessRequestAsync(HttpListenerContext context)

        {

            try

            {

                string filename = Path.GetFileName(context.Request.RawUrl);

                // ReSharper disable once AssignNullToNotNullAttribute

                string path = Path.Combine(_baseFolder, filename);

                byte[] msg = new byte[0];

                if (File.Exists(path))

                {

                    if (context.Request.HttpMethod == "GET")

                    {

                        context.Response.StatusCode = (int) HttpStatusCode.OK;

                        msg = File.ReadAllBytes(path);

                    }

                    else if (context.Request.HttpMethod=="POST")

                    {

                        context.Response.StatusCode = (int)HttpStatusCode.Created;

                    }

                    else

                    {

                        context.Response.StatusCode = (int) HttpStatusCode.HttpVersionNotSupported;

                    }

                }

                else

                {

                    Console.WriteLine($"资源不存在:{path}");

                    context.Response.StatusCode = (int) HttpStatusCode.NotFound;

                    msg = Encoding.Default.GetBytes(" ...你网址打错了... ");

                }

                context.Response.ContentLength64 = msg.Length;

                using (Stream s = context.Response.OutputStream)

                {

                    await s.WriteAsync(msg, 0, msg.Length);

                }

            }

            catch (Exception exception)

            {

                Console.WriteLine($"请求发生了错误:{exception}");

            }

        }

        public void Dispose()

        {

            _httpListener.Stop();

        }

    }

效果：