Connection Refused Exception.

Question

Hi! I have made a java server as an NT Service. This server and my client works fine when I run them from command prompt. But when I make the server as an NT service and then try to connect to it using this client, I get an exception saying connection refused. Can anyone help me with this, its urgent.
thanks
rahul

Answer 1

This is the client program
import java.net.*;
public class Client {
public static void main(String[] args)
try
Socket mySocket = new Socket("localhost", 4000);
System.out.println("Connected");
catch (Exception e)
System.err.println("Exception: " + e);
This is the Server Program
import java.io.*;
import java.util.Date;
class MyServer {
int m_port;
ServerSocket m_serverSocket;
public static void main(String[] args)
new MyServer(4000);
public MyServer(int port)
m_port=port;
try {
init();
catch (Exception e)
System.out.println("Caught : "+e);
public void init() throws Exception
m_serverSocket = new ServerSocket(m_port);
while(true)
Socket client = m_serverSocket.accept();
Thread clientThread = new Thread(new ClientHandler(client));
clientThread.start();
public void close() throws Exception { m_serverSocket.close(); } }
and this is the ClientHandler PRogram.
import java.io.*;
import java.net.*;
import java.util.Date;
class ClientHandler implements Runnable {
Socket m_socket;
public ClientHandler(Socket clientSocket) {
m_socket=clientSocket; }
public void run() {
try {
processRequests();
m_socket.close();
catch (Exception e) { System.out.println("Caught "+e); }
public void processRequests() throws IOException {
DataOutputStream dout= new DataOutputStream(m_socket.getOutputStream());
dout.writeChars((new Date()).toString()+"\n"); } }
...The point is that they run perfectly on command prompt but not when i make this server as nt service.
What could go Wrong ??
thanks
rahul