C#-向IP地址和端口发送和接收TCP / IP消息

public bool sendTCPMessage(string ip_address, string port, string transaction_id, string customer_username, DateTime date)
        {
            bool success = false;

            try
            {
                int converted_port = Convert.ToInt32(port);
                string converted_date = date.ToString("dd/MM/yyyy HH:mm:ss", CultureInfo.InvariantCulture);

                JObject obj = new JObject();
                obj["Transaction_Status"] = "Paid";
                obj["Transaction_ID"] = transaction_id;
                obj["Processed_Date"] = converted_date;
                obj["Customer_Username"] = customer_username;

                JSONMobile json_mobile = new JSONMobile();
                string json = json_mobile.SerializeToString(obj);

                TcpClient client = new TcpClient(ip_address, converted_port);
                Byte[] message = System.Text.Encoding.ASCII.GetBytes(json);
                NetworkStream stream = client.GetStream();
                stream.Write(message, 0, message.Length);
                stream.Close();
                client.Close();

                success = true;
            }
            catch (Exception)
            {
                success = false;
            }
            return success;
        }

现在,让我们假设我将ip_address传递为“ 127.0.0.1”,将端口传递为“ 1”.该方法执行时,出现以下异常：

这是因为没有人在另一端听吗？如果是,我如何在该IP地址(好的,不是0.0.0.45,而是127.0.0.1)和端口号上设置服务器以接受消息并回复？谢谢 ：)

另外要注意的是,使用端口1将是一种不好的做法,通常为系统对象或标准协议(例如telnet,f​​tp,http等)保留低端口号.