Java Database Connectivity (JDBC)

Hi everybody,
this is the first time I write here. I�m not sure is this the right topic or not.
Anyway I have a problem with my code.
I have created jtable which displays mysql database and I have textfield where user inputs new data that goes to database by pressing button.
Problem is that new data goes to database
but ...jtable does not show it unless I close the program entirely and open it up again.

Here�s a part of the code I�m using. Any suggestions are appreciated.

package levyarkisto07;

import javax.swing.table.DefaultTableModel;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Connection;




class CTauluPohja extends DefaultTableModel {
  public CTauluPohja() {
    try {
      jbInit();
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }

  private CTauluPohja model;
  private Connection con;
    public void teeTaulu(ResultSet results) {
        try {
            ResultSetMetaData metadata = results.getMetaData();
            int columns =  metadata.getColumnCount();

            // Get the column names and set header names
            for(int i = 0; i < columns; i++) {
                addColumn(metadata.getColumnLabel(i+1));
            }

            // Get all rows
            while(results.next()) {
                String[] rowData = new String[columns];    // Create array to hold the data
                for(int i = 0; i < columns; i++) {         // For each column
                    rowData[ i ] = results.getString(i+1);   // retrieve the data item
                }
                addRow(rowData);    // Add a row
            }
            fireTableChanged(null);           // Signal the table there is new model data
        } catch (SQLException sqle) {
            System.err.println(sqle.getMessage());
        }
    }

  private void jbInit() throws Exception {
  }

}


package levyarkisto07;

import java.sql.ResultSet;
import java.sql.*;

class CTietohaku {
  private CTauluPohja model;

  public CTietohaku() {
    String url = "jdbc:mysql://localhost/levyarkisto";


    try {

      Class.forName("com.mysql.jdbc.Driver");
      Connection con = DriverManager.getConnection(url,"  ","  ");
      Statement stmt = con.createStatement();

      String sql = "select tiedotid as ID, artistinimi as Artisti, levynimi as Levy, raitanro as Nro, kappalenimi as Kappale, levymuoto as T from levytiedot join levy using(levyid) join artisti using (artistiid) join raita using (raitaid) join kappale using (kappaleid) join levymuodot using (lmuotoid) order by artistinimi,levyid,raitaid";

      ResultSet rs = stmt.executeQuery(sql);
      haeTaulu(rs);

      rs.close();
      stmt.close();
      con.close();
    }
    catch (Exception exc) {
      System.err.println(exc.getMessage());
    }
    try {
      jbInit();
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }

  public CTauluPohja getSanasto() {

    return model;
  }

  void haeTaulu(ResultSet rs) {
    model = new CTauluPohja(); // Create a table model
    model.teeTaulu(rs);
  }

  private void jbInit() throws Exception {
  }
}



jTaTietokanta.setModel(hae.getSanasto());

Thank you