为特定JTable单元设置鼠标光标

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class JTableExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTable Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JTable table = new JTable(new DefaultTableModel());
        table.addMouseMotionListener(new MouseAdapter() {
            @Override
            public void mouseMoved(MouseEvent e) {
                int row = table.rowAtPoint(e.getPoint());
                int column = table.columnAtPoint(e.getPoint());
                TableModel model = table.getModel();
                if (model.isCellEditable(row, column)) {
                    table.changeSelection(row, column, false, false);
                    table.repaint();
                }
            }
        });
        frame.add(table);
        frame.pack();
        frame.setVisible(true);
    }
}