我的第一种方法是使用Java接口代理替换JTable的所有现有MouseListener，拦截事件，并仅传递与单击相关的事件。
基本上就是这样工作的：
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.table.*;public class ResizeColumnListener implements MouseListener{ private static Cursor resizeCursor = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR); private MouseListener uiListener; private JTableHeader header; private TableColumnAdjuster tca; public ResizeColumnListener(JTable table) { header = table.getTableHeader(); tca = new TableColumnAdjuster( table ); MouseListener[] listeners = header.getMouseListeners(); for (MouseListener ml: listeners) { String className = ml.getClass().toString(); if (className.contains("BasicTableHeaderUI")) { uiListener = ml; header.removeMouseListener(ml); header.addMouseListener( this ); } } } @Override public void mouseClicked( MouseEvent e ) { if (header.getCursor() != resizeCursor) { uiListener.mouseClicked( e ); return; } // Handle the double click event to resize the column // Note: The last 3 pixels + 3 pixels of next column are for resizing, // so we need to adjust the mouse point to get the actual column. if (e.getClickCount() == 2) { Point p = e.getPoint(); p.x -= 3; int column = header.columnAtPoint( p ); tca.adjustColumn( column ); // Generate event to reset the cursor header.dispatchEvent(new MouseEvent( header, MouseEvent.MOUSE_MOVED, e.getWhen(), e.getModifiers(), e.getX(), e.getY(), 0, false)); } } @Override public void mouseEntered( MouseEvent e ) { uiListener.mouseEntered( e ); } @Override public void mouseExited( MouseEvent e ) { uiListener.mouseExited( e ); } @Override public void mousePressed( MouseEvent e ) { uiListener.mousePressed( e ); } @Override public void mouseReleased( MouseEvent e ) { uiListener.mouseReleased( e ); } public static void main(String[] args) { try {// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception e) { } DefaultTableModel model = new DefaultTableModel(5, 5); model.setValueAt("Row 0 : Column 0", 0, 0); model.setValueAt("Row 1 : Column 1", 1, 1); model.setValueAt("Row 2 : Column 2", 2, 2); model.setValueAt("Row 3 : Column 3", 3, 3); model.setValueAt("Row 4 : Column 4", 4, 4); JTable table = new JTable( model ); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); table.setAutoCreateRowSorter(true); JScrollPane scrollPane = new JScrollPane( table ); new ResizeColumnListener(table); Jframe frame = new Jframe(); frame.setDefaultCloseOperation( Jframe.EXIT_ON_CLOSE ); frame.add( scrollPane ); frame.setSize(400, 200); frame.setVisible(true); }}此代码还使用“ 表列调整器”。
