如何立即在JTable上看到更改的数据？

Question

I have already used the fireDataChanged methods but I think due to the fact that this is connected to my database it will not do anything.

    DelBtn.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            int selRow = table.getSelectedRow();            
            Object element = table.getValueAt(selRow, 0);
            th = table.getTableHeader();
            tcm = th.getColumnModel();
            Statement statement = null;
            try {
                statement = ResultSetTableModelFactory.connection
                        .createStatement();


                    if (JisSelected == true) {

                        String delete = "DELETE FROM J WHERE JNO = '" + element + "';";
                        statement.executeUpdate(delete);
                    }
                     if (SPJisSelected == true) {

                        String delete = "DELETE FROM SPJ WHERE SNO = '" + element + "';";
                        statement.executeUpdate(delete);

                    }
                System.out.println(element);
            } catch (Exception ex) {
                //ex.printStackTrace();
            }
            model.fireTableDataChanged();
        }
    });

}

Answer 1

Your ActionListener should perform its work in your implementation of the doInBbackground() method of a SwingWorker . In the interim, you should signify that the operation is pending in whatever way is appropriate to your application, perhaps in a renderer or status indicator. If the database operation succeeds, update the TableModel in your implementation of done() . In no case should you invoke fireTableDataChanged() except from within the model.