Exception occured: java.rmi.ConnectException:

Question

hi
i got an exception while running rmi client jar file....
i want to invoke a method in the server..i have created two jar files one for server and another for client..
i have added the policy file also..i tried by using server and client in the same system
when i run the client jar i got an exception like given below..and i'm using netbeans 6...
Exception occured: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
java.net.ConnectException: Connection refused: connect
can any one help me to solve this problem?
thanx in advance...

Answer 1

hi thanx for the reply..
i'm using windows XP, netbeans6, jdk6, sql server2000.
when i started the rmiregistry this exception is over, but another exception comes
Exception occured: java.rmi.NotBoundException: myebillRMIImpl
my code is given below..please help me....a similar code worked properly without using netbeans..
import java.sql.*;
public interface ebillRMIInterface extends java.rmi.Remote
public void insert(String str) throws java.rmi.RemoteException;
     public ResultSet select(String str1) throws java.rmi.RemoteException;
import java.rmi.*;
import java.rmi.server.UnicastRemoteObject;
import java.sql.*;
public class ebillRMIImpl extends UnicastRemoteObject implements ebillRMIInterface
public ebillRMIImpl(String name) throws RemoteException
super();
try
Naming.rebind(name, this);
catch(Exception e)
System.out.println("Exception occurred: " + e);
                    Statement stmt=null;
                    Connection con=null;
                    ResultSet res=null;
public void insert(String str)
try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               con = DriverManager.getConnection("jdbc:odbc:rmidsn", "sa", "");
               stmt = con.createStatement();
               stmt.executeUpdate(str);
               con.close();
          catch (Exception e)
               System.out.println(e);
          public ResultSet select(String str)
               try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               con = DriverManager.getConnection("jdbc:odbc:rmidsn", "sa", "");
               stmt = con.createStatement();
               res=stmt.executeQuery(str);
               con.close();
          catch (Exception e)
               System.out.println(e);
          return res;
import java.rmi.*;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;
public class ebillRMIServer
public static void main(String[] argv)
System.setSecurityManager(new RMISecurityManager());
try
//Registry registry =LocateRegistry.getRegistry();
ebillRMIImpl implementation = new ebillRMIImpl("myebillRMIImpl");
catch (Exception e)
System.out.println("Exception occurred: " + e);
Client function is
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {     
System.setSecurityManager(new RMISecurityManager());
int itemid;
String serverName ="";
serverName = "localhost";
                    ResultSet res=null;
String itid=jTextField1.getText();
itemid=Integer.parseInt(itid);
try
//bind server object to object in client//rmi://host:<port>/correlator
ebillRMIInterface ebillserver = (ebillRMIInterface) Naming.lookup("rmi://"+serverName+"/myebillRMIImpl");
//invoke method on server object
System.out.println("Date on server is " + d);*/
                              String str="select * from Stock where itemid="+itemid;
                              res=ebillserver.select(str);
while(res.next())
jTextField2.setText(res.getString(2));
Float price=res.getFloat(4);
String pr=String.valueOf(price);
jTextField3.setText(pr);
catch(Exception e)
System.out.println("Exception occured: " + e);
System.exit(0);
System.out.println("RMI connection successful");
}