通常只允许使用每个套接字地址(协议/网络地址/端口)？

我一直在谷歌寻找一个严肃的解决方案,我只得到"Regisrty解决方案"的东西,我不认为甚至与我的问题有关.

由于某种原因,我得到这个错误,而我只启动一次TcpListner,当+如果失败我停止服务器.我真的不明白.这是我的代码:

class Program
    {
        private static string ServerName = "";
        private static string UserName = "";
        private static string Password = "";
        private static string dbConnectionSring = "";
        private static X509Certificate adminCertificate;
        private  static byte[] readBuffer = new byte[4096];
        static void Main(string[] args)
        {
            Console.WriteLine("Please grant SQL Server access to the Admin Server:\n");
            Console.Write("Server Name: ");
            ServerName = Console.ReadLine();
            Console.Write("\nUser Name: ");
            UserName = Console.ReadLine();
            Console.Write("\nPassword: ");
            Password = PasswordMasker.Mask(Password);
            dbConnectionSring = SQLServerAccess.CreateConnection(ServerName, UserName, Password);
            adminCertificate = Certificate.GenerateOrImportCertificate("AdminCert.pfx", "randomPassword");
            try
            {
                Console.WriteLine("Initializing server on the WildCard address on port 443...");
                TcpListener listener = new TcpListener(IPAddress.Any, 443);
                try
                {
                    Console.WriteLine("Starting to listen at {0}: 443...", IPAddress.Any);

                    //the backlog is set to the maximum integer value, but the underlying network stack will reset this value to its internal maximum value
                    listener.Start(int.MaxValue);
                    Console.WriteLine("Listening... Waiting for a client to connect...");
                    int ConnectionCount = 0;

                    while (true)
                    {
                        try
                        {

                            listener.BeginAcceptTcpClient(new AsyncCallback(AcceptCallback), listener);
                            ConnectionCount++;
                            Console.WriteLine(
                                " Accepted connection #" + ConnectionCount.ToString());


                        }
                        catch (SocketException err)
                        {
                            Console.WriteLine("Accept failed: {0}", err.Message);
                        }
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Listening failed to start.");
                    listener.Stop();

                    Console.WriteLine(ex.Message);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Initialiazing server Failed.");
                Console.WriteLine(ex.Message);
            }
        }

我将非常感谢你的帮助!

我打开CMD并输入:netstat -a

我看了一下Local Address列.

我看了一下端口部分.

我看到程序中的端口已在另一个程序中处于活动状态(正在使用中).

我将程序中的端口更改为其他内容.

有效!

非常感谢:@DavidSchwartz,@ Gusman

打开cmd

输入netstat –ano

将打开带有其端口的进程列表

搜索您无法使用的端口的“进程ID”（在我的情况下为端口11020）

打开任务管理器并停止该过程

现在您的端口可以使用了:)