Java 访问(复制,粘贴)剪切板

/**       * 从剪切板获得文字。       */       public static String getSysClipboardText() {           String ret = "";           Clipboard sysClip = Toolkit.getDefaultToolkit().getSystemClipboard();           // 获取剪切板中的内容           Transferable clipTf = sysClip.getContents(null);              if (clipTf != null) {               // 检查内容是否是文本类型               if (clipTf.isDataFlavorSupported(DataFlavor.stringFlavor)) {                   try {                       ret = (String) clipTf                               .getTransferData(DataFlavor.stringFlavor);                   } catch (Exception e) {                       e.printStackTrace();                   }               }           }              return ret;       }          /**       * 将字符串复制到剪切板。       */       public static void setSysClipboardText(String writeMe) {           Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();           Transferable tText = new StringSelection(writeMe);           clip.setContents(tText, null);       }          /**       * 从剪切板获得图片。       */       public static Image getImageFromClipboard() throws Exception {           Clipboard sysc = Toolkit.getDefaultToolkit().getSystemClipboard();           Transferable cc = sysc.getContents(null);           if (cc == null)               return null;           else if (cc.isDataFlavorSupported(DataFlavor.imageFlavor))               return (Image) cc.getTransferData(DataFlavor.imageFlavor);           return null;       }          /**       * 复制图片到剪切板。       */       public static void setClipboardImage(final Image image) {           Transferable trans = new Transferable() {               public DataFlavor[] getTransferDataFlavors() {                   return new DataFlavor[] { DataFlavor.imageFlavor };               }                  public boolean isDataFlavorSupported(DataFlavor flavor) {                   return DataFlavor.imageFlavor.equals(flavor);               }                  public Object getTransferData(DataFlavor flavor)                       throws UnsupportedFlavorException, IOException {                   if (isDataFlavorSupported(flavor))                       return image;                   throw new UnsupportedFlavorException(flavor);               }              };           Toolkit.getDefaultToolkit().getSystemClipboard().setContents(trans,                   null);       }