我的 JTable 不显示我的列名称，我不明白为什么。谁能帮我告诉我为什么？预先感谢您。
package projet.ihm;
import java.awt.Color;
public class VueOccupations extends JPanel {
class MonModeleTableOccupation extends AbstractTableModel {
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return true;
}
private JoursHoraire jours;
// initialise ma liste de joueurs
public MonModeleTableOccupation( JoursHoraire jour) {
super();
this.jours=jour;
///périodes = périodes;
//jours = JoursHoraire.valueOf(jour);
}
// @Override
// public void setValueAt(Object aValue, int l, int c) {
// JoursHoraire[] jours=JoursHoraire.values();
// Joueur j = joueurs.get(l);
// switch (c) {
//
// case 1:
// j.setPrenom((String) aValue);
// break;
//case 2:
// j.setDate((Date) aValue);
//}
//}
@Override
public Class<?> getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
@Override
public String getColumnName(int c) {
// TODO Auto-generated method stub
switch (c) {
case 0:
return "périodes";
case 1:
return "Jour";
case 2:
return "Heure Debut";
case 3:
return "Heure Fin";
case 4:
return "Local";
}
return "Vide";
}
@Override
public int getColumnCount() {
return 5;
}
@Override
public int getRowCount() {
return Periode.NB_PERIODES;
}
@Override
public Object getValueAt(int l, int c) {
JoursHoraire jour = jours.JEUDI;
// System.out.println(l+" "+c+" "+j);
switch (c) {
case 0:
return jour.values();
case 1:
return jour.values();
case 2:
// return sdf.format(j.getDate());
return jour.values();
}
return "Vide";
}
}
private ControleurJHOccupation ctrl;
private JTable table;
private JTable table_1;
private JComboBox cbModule;
private JComboBox cbPeriode;
private JComboBox<JoursHoraire> cbJour;
private JComboBox<HeureMinute> cbHeureD;
private JComboBox<HeureMinute> cbHeureFin;
private ModèleJHOccupation modèleJHOccupation;
public VueOccupations(ControleurJHOccupation ctrl)throws HeadlessException {
modèleJHOccupation = new ModèleJHOccupation(ctrl);
// super(new ModèleJHProfesseur(ctrl),
// ctrl.getFacade().getIdsProfesseurs());
this.ctrl=ctrl;
JLabel lblModule = new JLabel("Choix Module");
cbModule = new JComboBox();
table = new JTable(modèleJHOccupation);
cbPeriode = new JComboBox();
cbJour = new JComboBox();
cbHeureD = new JComboBox();
cbHeureFin = new JComboBox();
String[] listeModule = ctrl.getFacade().getIdsModules();
for (int p = 0; p < listeModule.length; p++)
cbModule.addItem(listeModule[p]);
HeureMinute[] listeHDeb=SlotsJour.getHeuresJournée();
for (int p = 0; p < listeHDeb.length ; p++)
cbHeureD.addItem(listeHDeb[p]);
HeureMinute[] listeHFin=SlotsJour.getHeuresJournée();
for (int p = 0; p < listeHFin.length ; p++)
cbHeureFin.addItem(listeHFin[p]);
JoursHoraire[] jour=JoursHoraire.values();
for (int p = 0; p < jour.length ; p++)
cbJour.addItem(jour[p]);
List<Periode> période =ctrl.getFacade().getListePériode();
for (int i = 0; i < période.size(); i++){
cbPeriode.addItem( période.get(i).getId());
}
initGui();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(600, 500);
setVisible(true);
JButton btnAjoutOcc = new JButton("Ajout Occupation");
JScrollPane scrollPane = new JScrollPane();
GroupLayout groupLayout = new GroupLayout(this);
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(18)
.addComponent(lblModule)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(cbModule, 0, 466, Short.MAX_VALUE))
.addGroup(groupLayout.createSequentialGroup()
.addContainerGap(44, Short.MAX_VALUE)
.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING)
.addGroup(groupLayout.createSequentialGroup()
.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(table_1, GroupLayout.PREFERRED_SIZE, 514, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(cbPeriode, GroupLayout.PREFERRED_SIZE, 79, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(cbJour, GroupLayout.PREFERRED_SIZE, 79, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(cbHeureD, GroupLayout.PREFERRED_SIZE, 79, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(cbHeureFin, GroupLayout.PREFERRED_SIZE, 81, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(btnAjoutOcc, GroupLayout.PREFERRED_SIZE, 168, GroupLayout.PREFERRED_SIZE)))))
.addGap(42))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addContainerGap()
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(lblModule)
.addComponent(cbModule, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(table_1, GroupLayout.PREFERRED_SIZE, 161, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addGap(42)
.addComponent(scrollPane, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)))
.addGap(47)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(cbPeriode, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(cbJour, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(cbHeureD, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(cbHeureFin, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(btnAjoutOcc))
.addContainerGap(227, Short.MAX_VALUE))
);
setLayout(groupLayout);
}
private void initGui() {
//monModeleTableOccupation = new MonModeleTableOccupation(JoursHoraire jour);
table_1 = new JTable(monModeleTableOccupation);
//table.getColumnModel().getColumn(2).setCellRenderer(new Rend);
table_1.setAutoCreateRowSorter(true);
table_1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table_1.setBackground(Color.cyan);
table_1.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged ( ListSelectionEvent evt ) {
if ( evt . getValueIsAdjusting ()) return ;
int i =table . getSelectedRow ();
if (i >= 0) {
i =table.convertRowIndexToModel (i);
System.out.println(i);
} else
{}}}
);
JScrollPane scp = new JScrollPane(table);
//getRootPane().getContentPane().add(scp);
add(scp, BorderLayout.CENTER);
//JPanel panelSud = new JPanel();
//getContentPane().add(panelSud, BorderLayout.NORTH);
}
private MonModeleTableOccupation monModeleTableOccupation;
private void setDefaultCloseOperation(int exitOnClose) {
// TODO Auto-generated method stub
}
}
最佳答案
显示列的一个简单方法是将 JTable 放入 JScrollPane 的视口(viewport)中。
JScrollPane tablePane = new JScrollPane(jtable);
并将此 JScrollPane 添加到 JPanel。
作为javadoc of JTable状态:
If this JTable is the viewportView of an enclosing JScrollPane (the usual situation), configure this ScrollPane by, amongst other things, installing the table's tableHeader as the columnHeaderView of the scroll pane. ....
我看不到您的 table_1 被 JScrollPane 包裹。我想这会导致问题。
关于java - JTable 和 JPanel，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21089773/