在 JTable 中搜索

Question

我使用 Java Swing 创建了一个对话框窗口，该窗口在 JTable 中显示项目列表。我想实现某种搜索功能。谁能建议我实现此类功能的最佳方法？

Answer 1

阅读 JTable API 并点击有关“如何使用表”的 Swing 教程的链接。在那里，您将找到有关“排序和过滤”的部分，其中提供了如何使用文本字段搜索包含指定文本的行的示例。

Answer 2

这是在 JTable 中实现搜索的一种方法：

     public class JTableSearchAndHighlight extends JFrame {
     private JTextField searchField;
     private JTable table;
     private JPanel panel;
     private JScrollPane scroll;

   public JTableSearchAndHighlight() {

 initializeInventory();
  }

   private void initializeInventory() {

panel = new JPanel();

searchField = new JTextField();

panel.setLayout(null);

final String[] columnNames = {"Name", "Surname", "Age"};

final Object[][] data = {{"Jhon", "Java", "23"}, {"Stupid", "Stupido", "500"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Michael", "Winnie", "20"}, {"Winnie", "Thepoor", "23"},
                        {"Max", "Dumbass", "10"}, {"Melanie", "Martin", "500"},
                        {"Jollibe", "Mcdonalds", "15"}};

table = new JTable(data, columnNames);
table.setColumnSelectionAllowed(true);
table.setRowSelectionAllowed(true);

scroll = new JScrollPane(table);
scroll.setBounds(0, 200, 900, 150);

searchField.setBounds(10, 100, 150, 20);
searchField.addActionListener(new ActionListener() {

    public void actionPerformed(ActionEvent e) {

        String value = searchField.getText();

        for (int row = 0; row <= table.getRowCount() - 1; row++) {

            for (int col = 0; col <= table.getColumnCount() - 1; col++) {

                if (value.equals(table.getValueAt(row, col))) {

                    // this will automatically set the view of the scroll in the location of the value
                    table.scrollRectToVisible(table.getCellRect(row, 0, true));

                    // this will automatically set the focus of the searched/selected row/value
                    table.setRowSelectionInterval(row, row);

                    for (int i = 0; i <= table.getColumnCount() - 1; i++) {

                        table.getColumnModel().getColumn(i).setCellRenderer(new HighlightRenderer());
                    }
                }
            }
        }
    }
});

panel.add(searchField);
panel.add(scroll);

getContentPane().add(panel);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle("Inventory Window");
setSize(900, 400);
setLocationRelativeTo(null);
setVisible(true);
  }

private class HighlightRenderer extends DefaultTableCellRenderer {

@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {

    // everything as usual
    super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

    // added behavior
    if(row == table.getSelectedRow()) {

        // this will customize that kind of border that will be use to highlight a row
        setBorder(BorderFactory.createMatteBorder(2, 1, 2, 1, Color.BLACK));
    }

    return this;
  }
}

   public static void main(String[] args) {

SwingUtilities.invokeLater(new Runnable() {

    public void run() {

        new JTableSearchAndHighlight();
    }
});
  }
 }

Answer 3

看一下 SwingX 及其 JXTable。 SwingX 提供了一组扩展普通 Swing 组件并向其添加额外功能的组件。我最喜欢的是 MultiSplitPane （它是 JSplitPane 的替代品，允许您将窗格划分为任意数量的可调整大小的部分）和 JXTable ，它就像 JTable< /code>，而且还具有内置搜索功能（并绑定到 Ctrl-F），您可以对行进行排序/过滤。非常整洁的东西。您需要做的就是导入库，将 JTable 更改为 JXTable （以相同的方式启动），瞧！

希望有帮助。