复制选定的JTable单元格而不是行

Question

KeyStroke cStroke = KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK);
inputMap.put(cStroke,  "none");

I已尝试在单元格本身中添加CTRL C：在表格本身中添加键盘列器。它不起作用。以及以下代码：

Action actionListener = new AbstractAction() {
    public void actionPerformed(ActionEvent actionEvent) {
        System.out.println("activated");
    }
};
KeyStroke cStroke = KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK);
inputMap.put(cStroke,  actionListener);

它没有激活。 我读了

jtable：覆盖ctrl+c行为

，但它不包含答案，至少没有特定的答案。

您可以像这样将选定的单元格的内容复制到剪贴板：

Answer 1

CTRL+C将所选内容副本副本副本副本副本。您可以更改选择模式并选择单个单元格，CTRL+C仅复制此单元格。这可能是更自然的方式。下面的类显示一个具有切换选择模式的按钮的表。但是我不太确定如何从不同列中选择两个单元格。

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.BorderLayout;

public class TableSelectionModeExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTable Selection Mode Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Sample data for the table
        Object[][] data = {
                {"1", "John", "Doe"},
                {"2", "Jane", "Smith"},
                {"3", "Alice", "Johnson"}
        };
        String[] columns = {"ID", "First Name", "Last Name"};

        DefaultTableModel model = new DefaultTableModel(data, columns);
        JTable table = new JTable(model);

        // Create a button to cycle through selection modes
        JButton selectionModeButton = new JButton("Row Selection"); // Initial button text
        selectionModeButton.addActionListener(e -> cycleSelectionMode(table, selectionModeButton));

        // Add components to the frame
        frame.add(new JScrollPane(table), BorderLayout.CENTER);
        frame.add(selectionModeButton, BorderLayout.SOUTH);

        frame.pack();
        frame.setVisible(true);
    }

    private static void cycleSelectionMode(JTable table, JButton button) {
        // Determine the current selection mode and cycle to the next one
        if (table.getRowSelectionAllowed() && !table.getColumnSelectionAllowed()) {
            // Current mode: Row selection -> Switch to cell selection
            table.setRowSelectionAllowed(false);
            table.setColumnSelectionAllowed(false);
            table.setCellSelectionEnabled(true);
            button.setText("Cell Selection"); // Update button text
        } else if (table.getCellSelectionEnabled()) {
            // Current mode: Cell selection -> Switch to column selection
            table.setCellSelectionEnabled(false);
            table.setColumnSelectionAllowed(true);
            table.setRowSelectionAllowed(false);
            button.setText("Column Selection"); // Update button text
        } else if (table.getColumnSelectionAllowed()) {
            // Current mode: Column selection -> Switch back to row selection
            table.setColumnSelectionAllowed(false);
            table.setRowSelectionAllowed(true);
            button.setText("Row Selection"); // Update button text
        }
    }
}

Answer 2