public void cargarEmpleados(){
        try {
            
            Connection conn = Conexion.GetConnection();
            try {
                st = conn.createStatement();
                emp = st.executeQuery("SELECT * FROM Empleados");
            } catch (SQLException e) {
                JOptionPane.showMessageDialog(this, e.getErrorCode() + ": " + e.getMessage());
            }
            
            String [] columns ={"idEmpleado","nombre","apellido_p","apellido_m","telefono","idPuesto"} ;
            
            DefaultTableModel tm = new DefaultTableModel(null,columns){
                @Override
                public boolean isCellEditable(int rowIndex, int colIndex){
                    return false;
                }
            };
            
            while(emp.next()){
                String [] row = {emp.getString(1),emp.getString(2),emp.getString(3),emp.getString(4),emp.getString(5),emp.getString(6)};
                tm.addRow(row);
            }
            
            jTblEmpleados.setModel(tm);
        } catch (SQLException e) {
            Logger.getLogger(GameCrush.class.getName()).log(Level.SEVERE,null,e);
        }
        
    }