import javax.naming.*;
import java.util.Hashtable;

public InitialContext getInitialContext()
{
  Hashtable h = new Hashtable();
  h.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
  h.put(Context.PROVIDER_URL, "t3://localhost:7001");
  return new InitialContext(h);
}

ht.put(Context.PROVIDER_URL,"t3://svr1,svr2,svr3:7001");
ht.put(Context.PROVIDER_URL,"t3://node1:5001,node2:5002,node3:5003");