problema refresh tabel in JAVA

[•crazybay]

Am o problema cu un refresh la un tabel in timp real in momentul in care inserez date noi(in sensul ca nu stiu ce trebuie sa fac ca sa faca asta)

Cod:

package view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;

import java.sql.*;
import java.util.Calendar;
import java.util.Vector;

import javax.swing.*;

import net.proteanit.sql.DbUtils;
import databaseconnection.DatabaseConnection;

import java.util.GregorianCalendar;//pt afisare data si ora meniu

import net.proteanit.sql.DbUtils;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class Informatii_evenimente extends JFrame {

	private JPanel contentPane;
	Connection cnx=null;
	ResultSet rs = null;
	PreparedStatement pst = null;   
	private JTable tabel1;
	private JTextField textField_ID;
	private JTextField textField_Data;
	private JTextField textField_Ora;
	private JTextField textField_Eveniment;

	
	/**
	 * Create the frame.
	 */
	
	
	public Informatii_evenimente () {
		   cnx=DatabaseConnection.ConnecrDb();			  
		    //Conexiunea este obtinuta
		   try{
		   String sql ="select * from EVENIMENT";
		    pst=cnx.prepareStatement(sql);
		    rs=pst.executeQuery();
		   
		    // se creaza tabelul
		    
		    JOptionPane.showMessageDialog(null,"Conexiunea s-a realizat");
		    
		    
		    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			setBounds(400, 100, 715, 335);
			contentPane = new JPanel();
			contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
			setContentPane(contentPane);
			contentPane.setLayout(null);
			
			JScrollPane scrollPane = new JScrollPane(tabel1);
			scrollPane.setBounds(216, 11, 473, 168);
			contentPane.add(scrollPane);
			JTable table = new JTable(buildTableModel(rs));
			scrollPane.setViewportView(table);
			
			JButton buton_iesire = new JButton("Iesire");
			buton_iesire.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent arg0) {
					
					System.exit(0);
					
				}
			});
			buton_iesire.setBounds(600, 263, 89, 23);
			contentPane.add(buton_iesire);
			buton_iesire.setBackground(Color.LIGHT_GRAY);
			
			textField_ID = new JTextField();
			textField_ID.setBounds(98, 15, 86, 20);
			contentPane.add(textField_ID);
			textField_ID.setColumns(10);
			
			textField_Data = new JTextField();
			textField_Data.setBounds(98, 64, 86, 20);
			contentPane.add(textField_Data);
			textField_Data.setColumns(10);
			
			textField_Ora = new JTextField();
			textField_Ora.setBounds(98, 111, 86, 20);
			contentPane.add(textField_Ora);
			textField_Ora.setColumns(10);
			
			textField_Eveniment = new JTextField();
			textField_Eveniment.setBounds(98, 159, 86, 20);
			contentPane.add(textField_Eveniment);
			textField_Eveniment.setColumns(10);
			
			JLabel JLabel_ID = new JLabel("ID");
			JLabel_ID.setBounds(10, 18, 46, 14);
			contentPane.add(JLabel_ID);
			
			JLabel JLabel_Data = new JLabel("Data");
			JLabel_Data.setBounds(10, 67, 46, 14);
			contentPane.add(JLabel_Data);
			
			JLabel JLabel_Ora = new JLabel("Ora");
			JLabel_Ora.setBounds(10, 114, 46, 14);
			contentPane.add(JLabel_Ora);
			
			JLabel JLabel_Eveniment = new JLabel("Eveniment");
			JLabel_Eveniment.setBounds(10, 162, 78, 14);
			contentPane.add(JLabel_Eveniment);
			
			JButton buton_adaugare = new JButton("Adaugare");
			buton_adaugare.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					
					try{
					String sql ="Insert into EVENIMENT (ID,Data,Ora,Eveniment)values(?,?,?,?)";   
				       pst=cnx.prepareStatement(sql);
				       pst.setString(1,textField_ID.getText());
				       pst.setString(2,textField_Data.getText());
				       pst.setString(3,textField_Ora.getText());
				       pst.setString(4,textField_Eveniment.getText());
				      
				              
				       pst.execute();
				       textField_ID.setText("");
				       textField_Data.setText("");
				       textField_Ora.setText("");
				       textField_Eveniment.setText("");
				      
				         
				       JOptionPane.showMessageDialog(null, "Datele noi au fost salvate");	
								
					
				}
					 catch(Exception e1)
					 {       
					       JOptionPane.showMessageDialog(null, e1);
					    
					    }   
					 
					//DefaultTableModel();//pt update timp real date tabel
			           
			  }
			});
			buton_adaugare.setBounds(10, 263, 89, 23);
			contentPane.add(buton_adaugare);

		    // inchide conexiune 
		} catch(Exception e){
	        JOptionPane.showMessageDialog(null, e);
	    }finally {
	 	   try{
		       rs.close();
		       pst.close();
		   } 
		   catch(Exception e){
		       
		              }
		    }
	   
	}
	
	public static DefaultTableModel buildTableModel(ResultSet rs)
	        throws SQLException {

	    ResultSetMetaData metaData = rs.getMetaData();

	    // nume coloane
	    Vector<String> columnNames = new Vector<String>();
	    int columnCount = metaData.getColumnCount();
	    for (int column = 1; column <= columnCount; column++) {
	        columnNames.add(metaData.getColumnName(column));
	    }

	    // date tabel
	    Vector<Vector<Object>> data = new Vector<Vector<Object>>();
	    while (rs.next()) {
	        Vector<Object> vector = new Vector<Object>();
	        for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
	            vector.add(rs.getObject(columnIndex));
	        }
	        data.add(vector);
	    }

	    return new DefaultTableModel(data, columnNames);

	}
	
	

	
}