java中JTextPane 组件，里面如何加鼠标右键 复制，剪切监听呢

java中JTextPane 组件，里面如何加鼠标右键 复制，剪切监听呢

谁能给我个例子啊，或者提示一下

google一下，约有900多项符合要求的，呵呵，很多啊。
[code="java"]
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JFrame;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.UIManager;

/**

• Java右键菜单实现文本组件内容的的复制、粘贴、剪切功能
• @author 五斗米 <如转载请保留作者和出处>
• @blog http://blog.csdn.net/mq612 */

public class Test extends JFrame {

private static final long serialVersionUID = -5942087991012920147L;

private JScrollPane pane = null;

private TextAreaMenu text = null;

public Test() {
super("右键菜单");
try { // 使用Windows的界面风格
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} catch (Exception e) {
e.printStackTrace();
}
text = new TextAreaMenu();
pane = new JScrollPane(text);
this.getContentPane().add(pane);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(300, 200);
this.setVisible(true);
}

public static void main(String args[]) {
new Test();
}

/**

• 带有功能菜单的JTextArea
• @author 五斗米 <如转载请保留作者和出处>

• @blog http://blog.csdn.net/mq612
  */
  class TextAreaMenu extends JTextArea implements MouseListener {

  private static final long serialVersionUID = -2308615404205560110L;

  private JPopupMenu pop = null; // 弹出菜单

  private JMenuItem copy = null, paste = null, cut = null; // 三个功能菜单

  public TextAreaMenu() {
  super();
  init();
  }

  private void init() {
  this.addMouseListener(this);
  pop = new JPopupMenu();
  pop.add(copy = new JMenuItem("复制"));
  pop.add(paste = new JMenuItem("粘贴"));
  pop.add(cut = new JMenuItem("剪切"));
  copy.setAccelerator(KeyStroke.getKeyStroke('C', InputEvent.CTRL_MASK));
  paste.setAccelerator(KeyStroke.getKeyStroke('V', InputEvent.CTRL_MASK));
  cut.setAccelerator(KeyStroke.getKeyStroke('X', InputEvent.CTRL_MASK));
  copy.addActionListener(new ActionListener() {
  public void actionPerformed(ActionEvent e) {
  action(e);
  }
  });
  paste.addActionListener(new ActionListener() {
  public void actionPerformed(ActionEvent e) {
  action(e);
  }
  });
  cut.addActionListener(new ActionListener() {
  public void actionPerformed(ActionEvent e) {
  action(e);
  }
  });
  this.add(pop);
  }

  /**

  • 菜单动作
  • @param e */ public void action(ActionEvent e) { String str = e.getActionCommand(); if (str.equals(copy.getText())) { // 复制 this.copy(); } else if (str.equals(paste.getText())) { // 粘贴 this.paste(); } else if (str.equals(cut.getText())) { // 剪切 this.cut(); } }

  public JPopupMenu getPop() {
  return pop;
  }

  public void setPop(JPopupMenu pop) {
  this.pop = pop;
  }

  /**

  • 剪切板中是否有文本数据可供粘贴
  • @return true为有文本数据 */ public boolean isClipboardString() { boolean b = false; Clipboard clipboard = this.getToolkit().getSystemClipboard(); Transferable content = clipboard.getContents(this); try { if (content.getTransferData(DataFlavor.stringFlavor) instanceof String) { b = true; } } catch (Exception e) { } return b; }

  /**

  • 文本组件中是否具备复制的条件
  • @return true为具备 */ public boolean isCanCopy() { boolean b = false; int start = this.getSelectionStart(); int end = this.getSelectionEnd(); if (start != end) b = true; return b; }

  public void mouseClicked(MouseEvent e) {
  }

  public void mouseEntered(MouseEvent e) {
  }

  public void mouseExited(MouseEvent e) {
  }

  public void mousePressed(MouseEvent e) {
  if (e.getButton() == MouseEvent.BUTTON3) {
  copy.setEnabled(isCanCopy());
  paste.setEnabled(isClipboardString());
  cut.setEnabled(isCanCopy());
  pop.show(this, e.getX(), e.getY());
  }
  }

  public void mouseReleased(MouseEvent e) {
  }

}

}

[/code]