Solución:
Cuando necesitaba hacer esto en el pasado, comencé con el código aquí: http://www.javaworld.com/javatips/jw-javatip77.html
Y modificado para crear una acción para un botón que copiaría los datos y los encabezados de columna de una tabla al portapapeles.
import javax.swing.*;
import java.awt.*;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.StringTokenizer;
/**
* ExcelAdapter enables Copy-Paste Clipboard functionality on JTables. The clipboard data format used by the adapter is
* compatible with the clipboard format used by Excel. This provides for clipboard interoperability between enabled
* JTables and Excel.
*/
public class ExcelAdapter implements ActionListener
private String rowstring, value;
private Clipboard clipboard;
private StringSelection stsel;
private JTable jTable1;
/**
* The Excel Adapter is constructed with a JTable on which it enables Copy-Paste and acts as a Clipboard listener.
*/
public ExcelAdapter(JTable myJTable)
jTable1 = myJTable;
final KeyStroke copy = KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK, false);
// Identifying the copy KeyStroke user can modify this
// to copy on some other Key combination.
final KeyStroke paste = KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK, false);
// Identifying the Paste KeyStroke user can modify this
//to copy on some other Key combination.
jTable1.registerKeyboardAction(this, "Copy", copy, JComponent.WHEN_FOCUSED);
jTable1.registerKeyboardAction(this, "Paste", paste, JComponent.WHEN_FOCUSED);
clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
/**
* Public Accessor methods for the Table on which this adapter acts.
*/
public JTable getJTable()
return jTable1;
public void setJTable(JTable jTable1)
this.jTable1 = jTable1;
/**
* This method is activated on the Keystrokes we are listening to in this implementation. Here it listens for Copy
* and Paste ActionCommands. Selections comprising non-adjacent cells result in invalid selection and then copy
* action cannot be performed. Paste is done by aligning the upper left corner of the selection with the 1st element
* in the current selection of the JTable.
*/
@Override
public void actionPerformed(ActionEvent e)
final String actionCommand = e.getActionCommand();
if (actionCommand.equals("Copy"))
StringBuilder sbf = new StringBuilder();
// Check to ensure we have selected only a contiguous block of cells.
final int numcols = jTable1.getSelectedColumnCount();
final int numrows = jTable1.getSelectedRowCount();
final int[] rowsselected = jTable1.getSelectedRows();
final int[] colsselected = jTable1.getSelectedColumns();
if (!((numrows - 1 == rowsselected[rowsselected.length - 1] - rowsselected[0] &&
numrows == rowsselected.length) &&
(numcols - 1 == colsselected[colsselected.length - 1] - colsselected[0] &&
numcols == colsselected.length)))
JOptionPane.showMessageDialog(null, "Invalid Copy Selection",
"Invalid Copy Selection",
JOptionPane.ERROR_MESSAGE);
return;
for (int i = 0; i < numrows; i++)
for (int j = 0; j < numcols; j++)
sbf.append(jTable1.getValueAt(rowsselected[i], colsselected[j]));
if (j < numcols - 1)
sbf.append('t');
sbf.append('n');
stsel = new StringSelection(sbf.toString());
clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents(stsel, stsel);
else if (actionCommand.equals("Paste"))
System.out.println("Trying to Paste");
final int startRow = (jTable1.getSelectedRows())[0];
final int startCol = (jTable1.getSelectedColumns())[0];
try
final String trString = (String) (clipboard.getContents(this).getTransferData(DataFlavor.stringFlavor));
System.out.println("String is:" + trString);
final StringTokenizer st1 = new StringTokenizer(trString, "n");
for (int i = 0; st1.hasMoreTokens(); i++)
rowstring = st1.nextToken();
StringTokenizer st2 = new StringTokenizer(rowstring, "t");
for (int j = 0; st2.hasMoreTokens(); j++)
value = (String) st2.nextToken();
if (startRow + i < jTable1.getRowCount() &&
startCol + j < jTable1.getColumnCount())
jTable1.setValueAt(value, startRow + i, startCol + j);
System.out.println("Putting " + value + "at row = " + startRow + i + " column = " + startCol + j);
catch (Exception ex)
ex.printStackTrace();
JTable ya admite una acción de copia. Action Map Action muestra cómo puede usar fácilmente esta acción con un JButton para que no tenga que volver a escribir el código.
Aquí hay una versión renovada de ExcelAdapter de javaworld (desde 1999). Enlace
Para usar:
jTable1.addKeyListener(new ClipboardKeyAdapter(jTable1));
ClipboardKeyAdapter.java
public class ClipboardKeyAdapter extends KeyAdapter
private static final String LINE_BREAK = "r";
private static final String CELL_BREAK = "t";
private static final Clipboard CLIPBOARD = Toolkit.getDefaultToolkit().getSystemClipboard();
private final JTable table;
public ClipboardKeyAdapter(JTable table)
this.table = table;
@Override
public void keyReleased(KeyEvent event)
if (event.isControlDown())
if (event.getKeyCode()==KeyEvent.VK_C) // Copy
cancelEditing();
copyToClipboard(false);
else if (event.getKeyCode()==KeyEvent.VK_X) // Cut
cancelEditing();
copyToClipboard(true);
else if (event.getKeyCode()==KeyEvent.VK_V) // Paste
cancelEditing();
pasteFromClipboard();
private void copyToClipboard(boolean isCut)
int numCols=table.getSelectedColumnCount();
int numRows=table.getSelectedRowCount();
int[] rowsSelected=table.getSelectedRows();
int[] colsSelected=table.getSelectedColumns();
if (numRows!=rowsSelected[rowsSelected.length-1]-rowsSelected[0]+1
private void pasteFromClipboard()
int startRow=table.getSelectedRows()[0];
int startCol=table.getSelectedColumns()[0];
String pasteString = "";
try
pasteString = (String)(CLIPBOARD.getContents(this).getTransferData(DataFlavor.stringFlavor));
catch (Exception e)
JOptionPane.showMessageDialog(null, "Invalid Paste Type", "Invalid Paste Type", JOptionPane.ERROR_MESSAGE);
return;
String[] lines = pasteString.split(LINE_BREAK);
for (int i=0 ; istartRow+i && table.getColumnCount()>startCol+j)
table.setValueAt(cells[j], startRow+i, startCol+j);
private void cancelEditing()
if (table.getCellEditor() != null)
table.getCellEditor().cancelCellEditing();
private String escape(Object cell)
return cell.toString().replace(LINE_BREAK, " ").replace(CELL_BREAK, " ");
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