Java取得剪貼板中的內容數據

ClipboradOperate.java

import java.awt.Image;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;

public class ClipboradOperate {
    /**@Description:

 * @author zhk
 * @createtime 2012-7-12 上午11:33:06   
 * @param args
 */
public static void main(String[] args) {
    Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();//獲取系統剪貼板

    try {
        ImageViewer im=new ImageViewer(getImageFromClipboard());
    }catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
/**
 * 從指定的剪切板中獲取文本內容
 * 本地剪切板使用 Clipborad cp = new Clipboard("clip1"); 來構造
 * 系統剪切板使用  Clipboard sysc = Toolkit.getDefaultToolkit().getSystemClipboard();
 * 剪切板的內容   getContents(null); 返回Transferable
 */
protected static String getClipboardText() throws Exception{
    Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard();//獲取系統剪貼板
    // 獲取剪切板中的內容
    Transferable clipT = clip.getContents(null);
    if (clipT != null) {
    // 檢查內容是否是文本類型
    if (clipT.isDataFlavorSupported(DataFlavor.stringFlavor))
    return (String)clipT.getTransferData(DataFlavor.stringFlavor); 
    }
    return null;
}

 //往剪切板寫文本數據
 protected static void setClipboardText(Clipboard clip, String writeMe) {
     Transferable tText = new StringSelection(writeMe);
     clip.setContents(tText, null);
 }

 // 從剪切板讀取圖像
 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;
 }
 // 寫圖像到剪切板
 protected static void setClipboardImage2(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);
 }


}
</pre> 


 ImageViewer.java 

/*


查看圖形的窗口
*/
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
用于顯示圖形的窗口
*/
public class ImageViewer extends Frame {
 private Image image;
 /**

顯示一個圖像
@param viewMe
*/
public ImageViewer(Image viewMe) {
image = viewMe;
MediaTracker mediaTracker = new MediaTracker(this);
mediaTracker.addImage(image, 0);
try {
mediaTracker.waitForID(0);
} catch (InterruptedException ie) {
ie.printStackTrace();
System.exit(1);
}
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
//窗口適應圖像大小
setSize(image.getWidth(null), image.getHeight(null));
//窗口標題
setTitle("Viewing Image from Clipboard"); 
setVisible(true);
}
public void paint(Graphics graphics) {
graphics.drawImage(image, 0, 0, null);
}
/**
用于讀取圖像文件并生成Image對象
*/
public static Image getImageFromFile(String fileName) {
Toolkit toolkit = Toolkit.getDefaultToolkit();
Image image = toolkit.getImage(fileName);
return image;
}
}</pre>