Java Networking “Connection Refused: Connect”

Question

I have been trying to get a simple networking test program to run with no results.

Server:

import java.io.*;
import java.net.*;

public class ServerT         


        

Answer 1

These problem comes under the following situations:

1. Client and Server, either or both of them are not in network.

2. Server is not running.

3. Server is running but not listening on port, client is trying to connect.

4. Firewall is not permitted for host-port combination.

5. Host Port combination is incorrect.

6. Incorrect protocol in Connecting String.

How to solve the problem:

1. First you ping destination server. If that is pinging properly, then the client and server are both in network.

2. Try connected to server host and port using telnet. If you are able to connect with it, then you're making some mistakes in the client code.