JTable如何在插入删除或更新数据后刷新表模型.

import javax.swing.*;
import javax.swing.table.AbstractTableModel;

public class MyTableModel extends AbstractTableModel {
    private Object[][] data;
    private String[] columnNames;

    public MyTableModel(Object[][] data, String[] columnNames) {
        this.data = data;
        this.columnNames = columnNames;
    }

    @Override
    public int getRowCount() {
        return data.length;
    }

    @Override
    public int getColumnCount() {
        return columnNames.length;
    }

    @Override
    public Object getValueAt(int row, int column) {
        return data[row][column];
    }

    @Override
    public void setValueAt(Object value, int row, int column) {
        data[row][column] = value;
        fireTableCellUpdated(row, column);
    }

    @Override
    public boolean isCellEditable(int row, int column) {
        return true;
    }

    public void insertRow(int row, Object[] rowData) {
        Object[][] newData = new Object[data.length + 1][columnNames.length];
        System.arraycopy(data, 0, newData, 0, row);
        System.arraycopy(data, row, newData, row + 1, data.length - row);
        newData[row] = rowData;
        data = newData;
        fireTableRowsInserted(row, row);
    }

    public void removeRow(int row) {
        Object[][] newData = new Object[data.length - 1][columnNames.length];
        System.arraycopy(data, 0, newData, 0, row);
        System.arraycopy(data, row + 1, newData, row, data.length - row - 1);
        data = newData;
        fireTableRowsDeleted(row, row);
    }
}

public class Main {
    public static void main(String[] args) {
        Object[][] data = {
                {"John", "Doe", 30},
                {"Jane", "Smith", 25},
                {"Bob", "Johnson", 35}
        };
        String[] columnNames = {"First Name", "Last Name", "Age"};

        MyTableModel model = new MyTableModel(data, columnNames);
        JTable table = new JTable(model);

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new JScrollPane(table));
        frame.pack();
        frame.setVisible(true);

        // 在插入数据后刷新表模型
        Object[] newRowData = {"Alice", "Brown", 28};
        model.insertRow(1, newRowData);

        // 在删除数据后刷新表模型
        model.removeRow(2);

        // 在更新数据后刷新表模型
        model.setValueAt(40, 0, 2);
    }
}