创建一个简单的HTTP服务（自动查找未使用的端口）

浏览数：38 / 时间：2015年06月09日

            var t = new Thread(new ThreadStart(() => {
                HttpListener listener = new HttpListener();
                var prefix = string.Format("http://localhost:{0}/", port);
                listener.Prefixes.Add(prefix);
                listener.Start();
                HttpListenerContext context = listener.GetContext();
                HttpListenerRequest request = context.Request;
                HttpListenerResponse response = context.Response;
                string responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
                byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
                response.ContentLength64 = buffer.Length;
                System.IO.Stream output = response.OutputStream;
                output.Write(buffer, 0, buffer.Length);
                output.Close();
                listener.Stop();
            }));
            t.Start();

using System.Net;

        static int GetPort()
        {
            IPGlobalProperties ipProperties = IPGlobalProperties.GetIPGlobalProperties();
            IPEndPoint[] ipEndPoints = ipProperties.GetActiveTcpListeners();
            var port = 800;
            var flag = true;
            while(flag)
            {
                flag = ipEndPoints.Any(p => { return p.Port == 800; });
                if (flag) 
                {
                    port += 1;
                    if(port == 60000)
                    {
                        MessageBox.Show("端口都被占用了，请联系管理员");
                        flag = false;
                        Environment.Exit(0);
                    }
                }
                else
                {
                    flag = false;
                    break;
                }
            }
            return port;
        }