CODEWITHSUNDEEP
c#android
Kamaljit Kaur
Kamaljit Kaur

Reputation: 25

Send data to remote server using Sockets

I want send data to remote server i know its IP address and Port number. Let say it is xxx.xxx.xx.xx and port number is 123. It works with TCP. I want to send first-last name, email, and host name where host name is the new name which i am going to give my machine. Server should give me response in the form of key value as 123-01234. Here I do not understand how i would send data to server using socket. I did work with just simple strings. I have one last more question, Have i need to make server program in it. 

 public  void Connect(String server)
{
Int32 port = 123;
TcpClient client = new TcpClient(server, port);
string FNAME = "reet";
Byte[] data = System.Text.Encoding.ASCII.GetBytes(FNAME);
NetworkStream stream = client.GetStream();
stream.Write(data, 0, data.Length);
Console.WriteLine("Sent: {0}", FNAME);
data = new Byte[256];
String responseData = String.Empty;
Int32 bytes = stream.Read(data, 0, data.Length);
responseData = System.Text.Encoding.ASCII.GetString(data, 0, bytes);
Console.WriteLine("Received: {0}", responseData);
stream.Close();
client.Close();
}

Upvotes: 1

Views: 818

Answers (1)

Marc Gravell
Marc Gravell

Reputation: 1062530

To open a socket, you can either use the Socket type, or the TcpClient type (assuming it is TCP). The IP address and port are specified in the constructor for either. Then you need to decide whether you're going to use the Socket API, vs the NetworkStream API, to actually do the communications. If you're using a raw Socket (.Client on a TcpClient), then you use the Send and Receive methods (and the related async options). If you prefer a Stream, then that is .GetStream() on TcpClient, or new NetworkStream(socketInstance) for Socket, and Read / Write. With a Stream, you can of course wrap it in a StreamReader / StreamWriter if you want a simple text API, but it isn't clear whether your socket API is text or binary. You mention wanting to receive 123-01234, but that could be encoded many different ways, so ultimately you need to be very clear about what the socket API expects, at the byte level.

Upvotes: 2

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