CODEWITHSUNDEEP
javasocketstelnet
user1836132
user1836132

Reputation: 21

Cannot read data from telnet connection

I'm trying to make a simple telnet client, using Sockets in java. Here is what I've written:

public class NetUtil {
    public static void main(String[] args) throws IOException {
        Socket sock = new Socket("localhost", 23);
        InputStream in = sock.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(in));

        String output;
        while((output=br.readLine())!=null){
            System.out.println(output);
        }
    }
}

The problem is that output freezes when trying to read from buffered reader. I've checked connection with sock.isConnected() - its connected. My telnet server is up and running - i've checked from console - i can connect to my workstation, but when i try using sockets, it fails.

Upvotes: 1

Views: 788

Answers (2)

Sami Korhonen
Sami Korhonen

Reputation: 1303

I don't think you should reinvent the wheel here. Try using Apache Commons Net telnet client.

Upvotes: 1

Gábor Lipták
Gábor Lipták

Reputation: 9776

Are you sure, that the server sends something? Does it send newline character as well? Your program is expecting it with calling readLine of BufferedReader.

Upvotes: 0

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