如何在JTable中實現搜索

Question

我想要JTable的一個特性，其中我將提供一個文本字段以輸入要從JTable搜索的值，並且如果此輸入值與JTable中的任何單元格值匹配那麼該特定單元格應該突出顯示&單元格字體應該變爲BOLD。在用戶在文本字段中指定值後按Enter鍵時，這些值將被匹配。

我怎樣才能做到這一點？

Answer 1

這是一種解決問題的方法。這裏是代碼：

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 2

來自SwingX項目的JXTable具有內置支持來搜索表（查找Searchable接口）。它還允許快速創建一個使用此接口Searchable的搜索字段：JXSearchField和/或JXSearchPanel。

如果我沒記錯的話，這將覆蓋你的大部分要求。可能只需要添加一些用於使單元格內容大膽的自定義代碼