可编辑的JTableHeader

可能重复：
在JTableHeader中访问JTextField

如何使JTableHeader可编辑。 我将ColumnHeader作为JTextField。 我该怎么做才能使JTextField可编辑。 看例子：

import java.awt.*; import javax.swing.*; import javax.swing.table.*; import java.awt.event.*; public class Test extends JFrame { String[][] cellValues = { { "v00", "v01", "v02" }, { "v10", "v11", "v12" }, { "v20", "v21", "v22" }, { "v30", "v31", "v32" }, { "v40", "v41", "v42" }, { "v50", "v51", "v52" } }; String[] columnNames = { "v00", "v01", "v02" }; javax.swing.JTable jTable1 = new javax.swing.JTable(cellValues, columnNames); public Test() { try { jbInit(); } catch (Exception e) { e.printStackTrace(); } } private void jbInit() throws Exception { this.getContentPane().add(new JScrollPane(jTable1), null); for (int i = 0; i < 3; i++) jTable1.getColumnModel().getColumn(i) .setHeaderRenderer(new Renderer()); } public static void main(String[] args) { Test frame = new Test(); frame.addWindowListener(new java.awt.event.WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); frame.pack(); frame.setVisible(true); } } class Renderer extends JPanel implements TableCellRenderer { JLabel label = new JLabel(" "); JTextField field = new JTextField("%"); public Renderer() { super(new BorderLayout()); add(label, BorderLayout.NORTH); add(field, BorderLayout.CENTER); setBorder(BorderFactory.createEtchedBorder()); } public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { label.setText(value.toString()); return (JComponent) this; } public String toString() { return label.toString(); } public void setText(String text) { label.setText(text); } } 

Answer 1

这是制作可编辑标题的简单方法（不需要自定义渲染器或UI）：

 import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.table.*; public class JTableEditableHeaderDemo implements Runnable { private JTable table; private JTableHeader header; private JPopupMenu renamePopup; private JTextField text; private TableColumn column; public static void main(String[] args) { SwingUtilities.invokeLater(new JTableEditableHeaderDemo()); } public JTableEditableHeaderDemo() { table = new JTable(10, 5); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); table.setPreferredScrollableViewportSize(table.getPreferredSize()); header = table.getTableHeader(); header.addMouseListener(new MouseAdapter(){ @Override public void mouseClicked(MouseEvent event) { if (event.getClickCount() == 2) { editColumnAt(event.getPoint()); } } }); text = new JTextField(); text.setBorder(null); text.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { renameColumn(); } }); renamePopup = new JPopupMenu(); renamePopup.setBorder(new MatteBorder(0, 1, 1, 1, Color.DARK_GRAY)); renamePopup.add(text); } public void run() { JFrame f = new JFrame("Double-click header to edit"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().add(new JScrollPane(table)); f.pack(); f.setLocationRelativeTo(null); f.setVisible(true); } private void editColumnAt(Point p) { int columnIndex = header.columnAtPoint(p); if (columnIndex != -1) { column = header.getColumnModel().getColumn(columnIndex); Rectangle columnRectangle = header.getHeaderRect(columnIndex); text.setText(column.getHeaderValue().toString()); renamePopup.setPreferredSize( new Dimension(columnRectangle.width, columnRectangle.height - 1)); renamePopup.show(header, columnRectangle.x, 0); text.requestFocusInWindow(); text.selectAll(); } } private void renameColumn() { column.setHeaderValue(text.getText()); renamePopup.setVisible(false); header.repaint(); } } 

Answer 2

在以下链接下有一个完整的解决方案，第一眼就看起来相当不错！
如何使用可编辑标头创建JTable？