操作剪贴板

package newpackage;
import java.awt.*;
import java.awt.datatransfer.*;
import java.io.*;

public class ClipBoardTest {

public static void main(String[] args) {
String s = "abc\tedf\njhf";
setClipboard(s);
System.out.println(getClipboard());
}

// If a string is on the system clipboard, this method returns it;
// otherwise it returns null.
public static String getClipboard() {
Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard()
.getContents(null);

try {
if (t != null && t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
String text = (String) t
.getTransferData(DataFlavor.stringFlavor);
return text;
}
} catch (UnsupportedFlavorException e) {
} catch (IOException e) {
}
return null;
}

// This method writes a string to the system clipboard.
// otherwise it returns null.
public static void setClipboard(String str) {
StringSelection ss = new StringSelection(str);
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(ss, null);
}

// deal with image
// Getting and Setting an Image on the System Clipboard
// If an image is on the system clipboard, this method returns it;
// otherwise it returns null.
public static Image getImageClipboard() {
Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard()
.getContents(null);

try {
if (t != null && t.isDataFlavorSupported(DataFlavor.imageFlavor)) {
Image image = (Image) t.getTransferData(DataFlavor.imageFlavor);
return image;
}
} catch (UnsupportedFlavorException e) {
} catch (IOException e) {
}
return null;
}

// Setting an image on the system clipboard requires a custom Transferable
// object to hold the image while on the clipboard.
// This method writes a image to the system clipboard.
// otherwise it returns null.
public static void setImageClipboard(Image image) {
ImageSelection imgSel = new ImageSelection(image);
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(imgSel,
null);
}

// This class is used to hold an image while on the clipboard.
public static class ImageSelection implements Transferable {
private Image image;

public ImageSelection(Image image) {
this.image = image;
}

// Returns supported flavors
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { DataFlavor.imageFlavor };
}

// Returns true if flavor is supported
public boolean isDataFlavorSupported(DataFlavor flavor) {
return DataFlavor.imageFlavor.equals(flavor);
}

// Returns image
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (!DataFlavor.imageFlavor.equals(flavor)) {
throw new UnsupportedFlavorException(flavor);
}
return image;
}
}
}