Java JTable 在一行中选择多个连续的单元格

Question

我需要能够仅在 JTable 的一行中选择多个连续的单元格。

SINGLE_INTERVAL_SELECTION 最接近我的需要，但我不想选择多行。

单行多列是我想要做的。

有什么办法可以实现吗？

Answer 1

将行的 ListSelectionModel 模式设置为 SINGLE_SELECTION 并将 ColumnModel 的 ListSelectionModel 模式设置为 SINGLE_INTERVAL_SELECTION 并告诉 ColumnModel 允许进行列选择。

public class Main {

    public static void main(String[] args) {
            JTable jTable = new JTable();

            TableColumnModel columnModel = jTable.getColumnModel();
            columnModel.setColumnSelectionAllowed(true);
            ListSelectionModel columnSelectionModel = columnModel.getSelectionModel();
            columnSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);

            ListSelectionModel rowSelectionModel = jTable.getSelectionModel();
            rowSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

            jTable.setModel(createExampleModel());

            createFrameAndShow(jTable);
        }

        private static void createFrameAndShow(JTable jTable) {
            JFrame mainFrame = new JFrame("JTable select multiple contiguous cells in a single row");
            Container contentPane = mainFrame.getContentPane();
            contentPane.add(jTable);

            mainFrame.setSize(500, 100);
            mainFrame.setLocationRelativeTo(null);
            mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
            mainFrame.setVisible(true);
        }

        private static DefaultTableModel createExampleModel() {
            DefaultTableModel defaultTableModel = new DefaultTableModel();
            defaultTableModel.setColumnCount(4);

            defaultTableModel.addRow(new Object[] { "A1", "B1", "C1", "D1" });
            defaultTableModel.addRow(new Object[] { "A2", "B2", "C2", "D2" });
            defaultTableModel.addRow(new Object[] { "A3", "B3", "C3", "D3" });
            return defaultTableModel;
        }
    }

会导致