JLable设置复制粘贴

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                final JLabel keyLable = new JLabel(key);

                keyLable.addMouseListener(new MouseAdapter() {

                    @Override

                    public void mouseClicked(MouseEvent e) {

                        // TODO Auto-generated method stub

                        //双击选中

                        if(e.getClickCount() == 2) {

                            String clipboardStr = keyLable.getText();

                            setClipboardString(clipboardStr);

                            keyLable.setOpaque(true);

                            keyLable.setForeground(Color.BLUE);

                            keyLable.setFont(new Font("Helvetica", Font.BOLD, 14));

                        }

                    }

                    @Override

                    public void mouseExited(MouseEvent e) {

                        // TODO Auto-generated method stub

                        keyLable.setOpaque(true);

                        keyLable.setForeground(Color.black);

                        keyLable.setFont(new Font("Helvetica", Font.PLAIN, 14));

                    }

                });

/**

     * 获取剪贴板内容(粘贴)

     */

    public String getClipboardString() {

        //获取系统剪贴板

        Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();

        //获取剪贴板内容

        Transferable trans = clipboard.getContents(null);

        if(trans != null) {

            //判断剪贴板内容是否支持文本

            if(trans.isDataFlavorSupported(DataFlavor.stringFlavor)) {

                String clipboardStr = null;

                try {

                    //获取剪贴板的文本内容

                    clipboardStr = (String) trans.getTransferData(DataFlavor.stringFlavor);

                } catch (UnsupportedFlavorException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                } catch (IOException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

                return clipboardStr;

            }

        }

        return null;

    }

    /**

     * 设置剪贴板内容(复制)

     */

    public static void setClipboardString(String str) {

        //获取协同剪贴板，单例

        Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();

        //封装文本内容

        Transferable trans = new StringSelection(str);

        //把文本内容设置到系统剪贴板上

        clipboard.setContents(trans, null);

    }