Я создал проект в c # для имитации клиента tcp в c #, используя Visual Studio 2017, чтобы понять, как работает связь TCP / IP на очень высоком уровне.Проблема в том, что приведенный ниже код вызывает исключение: «Невозможно установить соединение, поскольку целевой компьютер фактически отказался 127.0.0.1:1080"
namespace SimpleTcpEchoClient
{
public class Program
{
static void Main(string[] args)
{
TcpClient ourTcpClient = null;
NetworkStream networkStream = null;
try
{
//initiate a TCP client connection to local loopback address at port 1080
ourTcpClient = new TcpClient();
ourTcpClient.Connect(new IPEndPoint(IPAddress.Loopback, 1080)); //HERE IS WHERE THE EXCEPTION IS THROWN
Console.WriteLine("Connected to server....");
//get the IO stream on this connection to write to
networkStream = ourTcpClient.GetStream();
//use UTF-8 and either 8-bit encoding due to MLLP-related recommendations
var messageToTransmit = "Hello from Client";
var byteBuffer = Encoding.UTF8.GetBytes(messageToTransmit);
//send a message through this connection using the IO stream
networkStream.Write(byteBuffer, 0, byteBuffer.Length);
Console.WriteLine("Data was sent data to server successfully....");
var bytesReceivedFromServer = networkStream.Read(byteBuffer, 0, byteBuffer.Length);
// Our server for this example has been designed to echo back the message
// keep reading from this stream until the message is echoed back
while (bytesReceivedFromServer < byteBuffer.Length)
{
bytesReceivedFromServer = networkStream.Read(byteBuffer, 0, byteBuffer.Length);
if (bytesReceivedFromServer == 0)
{
//exit the reading loop since there is no more data
break;
}
}
var receivedMessage = Encoding.UTF8.GetString(byteBuffer);
Console.WriteLine("Received message from server: {0}", receivedMessage);
Console.WriteLine("Press any key to exit program...");
Console.ReadLine();
}
catch (Exception ex)
{
//display any exceptions that occur to console
Console.WriteLine(ex.Message);
}
finally
{
//close the IO strem and the TCP connection
networkStream?.Close();
ourTcpClient?.Close();
}
}
}
}
Я уже пытался изменить порт, но безуспешно!Может ли кто-нибудь помочь мне?