java - ejemplo - Agregar JTable a JScrollPane

jtable scroll vertical

Question

He estado haciendo una pequeña aplicación que contiene JTable . La pregunta es la siguiente: cuando agrego JTable al JScrollPane , me da el error de que el componente de la tabla se agrega a un componente primario más de una vez.

getContentPane().add(new JScrollPane(table));
scrollPane.setViewportView(table);

Veo el problema pero no pude resolverlo. ¿Alguna sugerencia?

 public thirdFrame() {
thirdFrame = new JFrame();
thirdFrame.setFont(new Font("David", Font.BOLD, 17));
thirdFrame.setTitle("MGMSportif");
thirdFrame.setIconImage(Toolkit.getDefaultToolkit().getImage("C://Users//EXP//Desktop//mgm//src//MGM-LOGO.png"));
thirdFrame.setBounds(100, 100, 1600, 620);
thirdFrame.setVisible(true);
thirdFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thirdFrame.getContentPane().setLayout(null);
JDesktopPane desktop = new JDesktopPane();
desktop.setOpaque(true);
thirdFrame.getContentPane().add(desktop);
JInternalFrame internalFrame = new JInternalFrame("MGMSportif ",false,true,false,true);
internalFrame.setFrameIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//reized logo.png"));
internalFrame.setBounds(209, 126, 720, 400);
JToolBar toolBar = new JToolBar();
toolBar.setBounds(0, 0, 1362, 32);
thirdFrame.getContentPane().add(toolBar);
JButton bt = new JButton("");
bt.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt.setToolTipText("Dosya a/u00E7mak i/u00E7in t/u0131klay/u0131n");
bt.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//open-file-icon.png"));
toolBar.add(bt);
JButton bt1 = new JButton("");
bt1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Save sF =new Save();
sF.setVisible(false);
dispose();
}
});
bt1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt1.setToolTipText("Kay/u0131d etmek i/u00E7in t/u0131klay/u0131n");
bt1.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//save.png"));
toolBar.add(bt1);
JButton bt2 = new JButton("");
bt2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt2.setToolTipText("Kesmek i/u00E7in t/u0131klay/u0131n");
bt2.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//Cut-icon.png"));
toolBar.add(bt2);
JButton bt3 = new JButton("");
bt3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
internalFrame.setVisible(true);
}
});
thirdFrame.getContentPane().add(internalFrame);
internalFrame.getContentPane().setLayout(null);
JLabel lb = new JLabel("Tarihe g/u00F6re ara");
lb.setFont(new Font("Tahoma", Font.PLAIN, 13));
lb.setBounds(10, 11, 110, 26);
internalFrame.getContentPane().add(lb);
tF = new JTextField();
tF.setToolTipText("Aramak isteyen tarihi giriniz");
tF.setBounds(144, 16, 445, 20);
internalFrame.getContentPane().add(tF);
tF.setColumns(10);
JProgressBar pBar = new JProgressBar(0,100);
pBar.setString("");
pBar.setStringPainted(true);
pBar.setBounds(10, 67, 684, 21);
internalFrame.getContentPane().add( pBar);
JButton sesarchButton = new JButton("");
sesarchButton.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
sesarchButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
sesarchButton.setEnabled(false);
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
pBar.setVisible(true);
repaint();
for(int i=0;i<=100;i++){
final int percent = i;
pBar.setValue(i);
// jProgressBar1.setIndeterminate(false);
try{
pBar.paintImmediately(0, 0, 100, 100);//0, 1, 100, 10
Thread.sleep(100);
pBar.setStringPainted(true);
} catch (InterruptedException err){}
}
}
});
sesarchButton.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//search48.png"));
sesarchButton.setBounds(599, 7, 57, 56);
internalFrame.getContentPane().add(sesarchButton);
JLabel lb1 = new JLabel("Makineye g/u00F6re ara");
lb1.setFont(new Font("Tahoma", Font.PLAIN, 13));
lb1.setBounds(10, 43, 124, 20);
internalFrame.getContentPane().add( lb1);
tF1 = new JTextField();
tF1 .setBounds(144, 42, 445, 20);
internalFrame.getContentPane().add(tF1 );
tF1 .setColumns(10);
tF1 .setBounds(144, 42, 445, 20);
JList list = new JList();
list.setBounds(10, 99, 684, 360);
internalFrame.getContentPane().add(list);
bt3.setToolTipText("Dosya aramak i/u00E7in t/u0131klay/u0131n");
bt3.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//Zoom-icon.png"));
toolBar.add( bt3);
JButton bt4 = new JButton("");
ActionListener printAction = new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
MessageFormat headerFormat = new MessageFormat("Page {0}");
MessageFormat footerFormat = new MessageFormat("- {0} -");
table.print(JTable.PrintMode.FIT_WIDTH, headerFormat, footerFormat);
} catch (PrinterException pe) {
System.err.println("Error printing: " + pe.getMessage());
}
}
};
bt4.addActionListener(printAction);
bt4.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt4.setToolTipText("/u00C7/u0131kt/u0131 almak i/u00E7in t/u0131klay/u0131n");
bt4.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//print-icon16.png"));
toolBar.add(bt4);
JButton bt5 = new JButton("");
bt5.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
bt5.setToolTipText("Pencereyi kapatmak i/u00E7in t/u0131klay/u0131n");
bt5.setIcon(new ImageIcon("C://Users//EXP//Desktop//mgm//src//Close.png"));
toolBar.add(bt5);
JCheckBox checkBox = new JCheckBox("Enjeksyon Makine No:");
checkBox.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED){
tF2.setEnabled(true);
}
else if(e.getStateChange() == ItemEvent.DESELECTED){
tF2.setEnabled(false);
}
}
});
checkBox.setFont(new Font("Tahoma", Font.PLAIN, 11));
checkBox.setBounds(1015, 39, 131, 23);
thirdFrame.getContentPane().add(checkBox);
tF2 = new JTextField();
tF2.setBounds(1152, 43, 31, 19);
thirdFrame.getContentPane().add( tF2);
tF2.setColumns(10);
JCheckBox checkBox1 = new JCheckBox("Kaynak Makine No:");
checkBox1.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED){
tF3.setEnabled(true);
tF3.setText("");
}
else if(e.getStateChange() == ItemEvent.DESELECTED){
tF3.setEnabled(false);
tF3.setText("");
}
}
});
checkBox1.setFont(new Font("Tahoma", Font.PLAIN, 11));
checkBox1.setBounds(337, 39, 117, 23);
thirdFrame.getContentPane().add(checkBox1);
tF3 = new JTextField();
tF3.setBounds(460, 43, 31, 19);
thirdFrame.getContentPane().add(tF3);
tF3.setColumns(10);
JCheckBox checkBox2 = new JCheckBox("Otomatsyon Makine No:");
checkBox2.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED){
tF4.setEnabled(true);
tF4.setText("");
}
else if(e.getStateChange() == ItemEvent.DESELECTED){
tF4.setEnabled(false);
tF4.setText("");
}
}
});
checkBox2.setFont(new Font("Tahoma", Font.PLAIN, 11));
checkBox2.setBounds(577, 39, 141, 23);
thirdFrame.getContentPane().add(checkBox2);
tF4 = new JTextField();
tF4.setBounds(724, 43, 31, 19);
thirdFrame.getContentPane().add(tF4);
tF4.setColumns(10);
JCheckBox checkBox3 = new JCheckBox("Pakitleme:");
checkBox3.setFont(new Font("Tahoma", Font.PLAIN, 11));
checkBox3.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED){
tF5.setEnabled(true);
tF5.setText("");
}
else if(e.getStateChange() == ItemEvent.DESELECTED){
tF5.setEnabled(false);
tF5.setText("");
}
}
});
checkBox3.setBounds(844, 39, 85, 23);
thirdFrame.getContentPane().add(checkBox3);
tF5 = new JTextField();
tF5.setBounds(934, 43, 31, 19);
thirdFrame.getContentPane().add(tF5);
tF5.setColumns(10);
JLabel lb2 = new JLabel(" Vardiya 1 Vardiya 2");
lb2.setForeground(SystemColor.desktop);
lb2.setFont(new Font("Tahoma", Font.PLAIN, 13));
lb2.setBounds(0, 73, 1341,16);
thirdFrame.getContentPane().add(lb2);
JSeparator separator = new JSeparator();
separator.setBounds(0, 69, 1362, 2);
thirdFrame.getContentPane().add(separator);
JLabel lblNewLabel = new JLabel("TOSCOW");
lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 15));
lblNewLabel.setBounds(108, 43, 97, 19);
thirdFrame.getContentPane().add(lblNewLabel);
String[] col = new String[] {
"TAR/u0130H", "BEYAZ", "KIRMIZI", "MAV/u0130", "SARI", "S/u0130YAH", "New column", "ADET", "PERS.", "/u00DCR.NEDEN/u0130", "Toplam", "TAR/u0130H", "BEYAZ", "KIRMIZI", "MAV/u0130", "SARI", "S/u0130YAH","New column", "ADET", "PERS.", "/u00DCR.NEDEN/u0130", "Toplam", "2VDT"
};
Object[][] data = new Object[][] {
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
{null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null},
};
JTable table = new JTable(data, col);
add(new JScrollPane(table));
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(20, 94, 1324, 455);
thirdFrame.getContentPane().add(scrollPane);
scrollPane.setViewportView(table);
// header
header = table.getTableHeader();
header.addMouseListener(new MouseAdapter(){
@Override
public void mouseClicked(MouseEvent event)
{
if (event.getClickCount() == 2)
{
editColumnAt(event.getPoint());
}
}
});
text = new JTextField();
text.setBorder(null);
text.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e)
{
renameColumn();
}
});
renamePopup = new JPopupMenu();
renamePopup.setBorder(new MatteBorder(0, 1, 1, 1, Color.DARK_GRAY));
renamePopup.add(text);

}

 private void editColumnAt(Point p)
{
int columnIndex = header.columnAtPoint(p);
if (columnIndex != -1)
{
column = header.getColumnModel().getColumn(columnIndex);
Rectangle columnRectangle = header.getHeaderRect(columnIndex);
text.setText(column.getHeaderValue().toString());
renamePopup.setPreferredSize(
new Dimension(columnRectangle.width, columnRectangle.height - 1));
renamePopup.show(header, columnRectangle.x, 0);
text.requestFocusInWindow();
text.selectAll();
}
}
private void renameColumn()
{
column.setHeaderValue(text.getText());
renamePopup.setVisible(false);
header.repaint();
}

}

Answer 1

El error es correcto: un JScrollPane solo puede tener un "cliente desplazable (también conocido como modelo de datos) mostrado por la vista de JViewport ". Solo necesita setViewportView() si " no proporciona la vista directamente al constructor JScrollPane ".

JTable table = new JTable(data, col);
add(new JScrollPane(table));

Como un aparte, no use setBounds() de esta manera. En su lugar, anule el método de interfaz getPreferredScrollableViewportSize() y pack() la ventana getPreferredScrollableViewportSize() , como se muestra aquí .

JTable table = new JTable(model) {
@Override
public Dimension getPreferredScrollableViewportSize() {
return new Dimension(1024, 512);
}
};
add(new JScrollPane(table));
pack();

Answer 2

JTable table = new JTable();
JScrollPane scrollPane = new JScrollPane(table);
JFrame frame = new JFrame();
frame.add(scrollPane);

Debería funcionar perfectamente