怎么实现将windows的文本文件拖放到Jtextarea中呢？？

[ofking2]

是不是要用jni啊，有没有其他方法

[gtlang78]

import java.awt.BorderLayout;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.List;

import javax.swing.*;

public class FileTransferHandler extends TransferHandler {
private JTextArea textarea;

public FileTransferHandler(JTextArea filePathList) {
this.textarea = filePathList;
}

public boolean importData(JComponent c, Transferable t) {
try {
List files = (List)t.getTransferData(DataFlavor.javaFileListFlavor);
FileReader reader = new FileReader((File)files.get(0));
textarea.read(reader, null);
reader.close();
return true;
} catch (UnsupportedFlavorException ufe) {
ufe.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return false;
}

public boolean canImport(JComponent c, DataFlavor[] flavors) {
for (int i = 0; i < flavors.length; i++) {
if (DataFlavor.javaFileListFlavor.equals(flavors[i])) {
return true;
}
}
return false;
}

public static void main(String[] args)
{
JTextArea textarea = new JTextArea(10, 20);
textarea.setTransferHandler(new FileTransferHandler(textarea));

JFrame f = new JFrame("拖动文本文件到这个窗口里面");
f.getContentPane().add(new JScrollPane(textarea), BorderLayout.CENTER);
f.pack();
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}

[ofking2]

多谢，我试一下先