单击jtable中的超链接？

发布于 2024-10-04 12:02:57 字数 316 浏览 4 评论 0原文

如何为 JTable 中的每条记录启用超链接？

我想要做的是，用户可以单击超链接，然后该超链接将显示他们可以编辑/更新的信息。

或者，如何启用表数据的就地编辑？

另一个问题是我目前正在使用以下方式来显示不同的屏幕。但这不是一种优雅的方式，我知道我们应该使用卡片布局，但究竟如何去做呢？

mainPanel.setVisible(false);
createBlogEntryPanel.setVisible(true);
setComponent(createBlogEntryPanel);

原文

How can I enable hyperlink for every record in the JTable?

What I want to do is such that a user can click on the hyperlink which will then display the information they can edit/update.

Alternatively how can I enable in place editing of the table data?

Another question is i am currently using the following way to display different screen. But this is not an elegant way i understand we should use cardlayout but how exactly to go about it?

mainPanel.setVisible(false);
createBlogEntryPanel.setVisible(true);
setComponent(createBlogEntryPanel);

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怀里藏娇 2024-10-11 12:02:57

要解决 JTable 消耗事件的问题，您可以将自己的 MouseListener（或 MouseAdapter）添加到 JTable 并在此侦听器中进行操作。以下是您可以实现的目标的示例：

public class Main extends JFrame {

public Main() {
    super();

    DefaultTableModel dt = new DefaultTableModel(
            new String[][] { { "http://google.com" }, { "http://gmail.com" } }, new String[] { "Url" });
    final JTable t = new JTable(dt);

    t.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseClicked(MouseEvent e) {
            int row = t.rowAtPoint(new Point(e.getX(), e.getY()));
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            System.out.println(row + " " + col);

            String url = (String) t.getModel().getValueAt(row, col);
            System.out.println(url + " was clicked");
            // DO here what you want to do with your url
        }

        @Override
        public void mouseEntered(MouseEvent e) {
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            if (col == 0) {
                t.setCursor(new Cursor(Cursor.HAND_CURSOR));
            }
        }

        @Override
        public void mouseExited(MouseEvent e) {
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            if (col != 0) {
                t.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
            }
        }
    });

    add(new JScrollPane(t));

    t.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {

        @Override
        public Component getTableCellRendererComponent(JTable table, final Object value, boolean arg2,
                boolean arg3, int arg4, int arg5) {
            final JLabel lab = new JLabel("<html><a href=\"" + value + "\">" + value + "</a>");
            return lab;
        }
    });

    setSize(700, 500);
    setLocationRelativeTo(null);
    setVisible(true);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
}

public static void main(String[] args) {
    try {
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception e) {
        e.printStackTrace();
    }

    new Main();
}

}

To address the problem with JTable consuming the events, you can add your own MouseListener (or a MouseAdapter) to the JTable and do your manipulation inside this listener. Here is an example of what you can achieve:

public class Main extends JFrame {

public Main() {
    super();

    DefaultTableModel dt = new DefaultTableModel(
            new String[][] { { "http://google.com" }, { "http://gmail.com" } }, new String[] { "Url" });
    final JTable t = new JTable(dt);

    t.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseClicked(MouseEvent e) {
            int row = t.rowAtPoint(new Point(e.getX(), e.getY()));
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            System.out.println(row + " " + col);

            String url = (String) t.getModel().getValueAt(row, col);
            System.out.println(url + " was clicked");
            // DO here what you want to do with your url
        }

        @Override
        public void mouseEntered(MouseEvent e) {
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            if (col == 0) {
                t.setCursor(new Cursor(Cursor.HAND_CURSOR));
            }
        }

        @Override
        public void mouseExited(MouseEvent e) {
            int col = t.columnAtPoint(new Point(e.getX(), e.getY()));
            if (col != 0) {
                t.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
            }
        }
    });

    add(new JScrollPane(t));

    t.getColumnModel().getColumn(0).setCellRenderer(new TableCellRenderer() {

        @Override
        public Component getTableCellRendererComponent(JTable table, final Object value, boolean arg2,
                boolean arg3, int arg4, int arg5) {
            final JLabel lab = new JLabel("<html><a href=\"" + value + "\">" + value + "</a>");
            return lab;
        }
    });

    setSize(700, 500);
    setLocationRelativeTo(null);
    setVisible(true);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
}

public static void main(String[] args) {
    try {
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception e) {
        e.printStackTrace();
    }

    new Main();
}

}

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