我想在 JTable 中添加按钮。我已经制作了它的 Renderer 和 cellEditor 类，但我只是不知道在我的代码/netbeans 中放置按钮的位置...
SupplierForm.java
public class SupplierForm extends javax.swing.JFrame {
/**
* Creates new form SupplierForm
*/
public SupplierForm() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
supplierCombo = new javax.swing.JComboBox();
jScrollPane1 = new javax.swing.JScrollPane();
dataTable = new javax.swing.JTable();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
supplierCombo.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "USER", "Item 3", "Item 4" }));
supplierCombo.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
supplierComboActionPerformed(evt);
}
});
dataTable.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"ID", "Title 2", "Title 3", "Title 4"
}
));
/*This is giving error
dataTable.getColumn("Button").setCellRenderer(new ButtonRenderer());
dataTable.getColumn("Button").setCellEditor(
new ButtonEditor(new JCheckBox()));*/
jScrollPane1.setViewportView(dataTable);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(173, 173, 173)
.addComponent(supplierCombo, javax.swing.GroupLayout.PREFERRED_SIZE, 141, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(20, 20, 20)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 660, Short.MAX_VALUE)
.addGap(89, 89, 89))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(supplierCombo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(34, 34, 34))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(26, 26, 26)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void supplierComboActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String tableName = (String) supplierCombo.getModel().getSelectedItem();
DefaultTableModel model = (DefaultTableModel) dataTable.getModel();
int c = model.getRowCount();
for (int i=c-1; i>=0; i--){
model.removeRow(i);
dataTable.revalidate();
}
String sql = "select * from "+ tableName+" ";
try {
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (ClassNotFoundException ex) {
Logger.getLogger(SupplierForm.class.getName()).log(Level.SEVERE, null, ex);
}
Connection connect = (Connection) DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=C:\\Merlin1.accdb");
Statement statmnt = connect.createStatement();
ResultSet rslt = statmnt.executeQuery(sql);
while(rslt.next()){
String id = rslt.getString("ID");
String name = rslt.getString("USER_NAME");
String surname = rslt.getString("PASSWORD");
//String age = rslt.getString("Age");
model.addRow(new Object[]{id,name,surname});
}
} catch(SQLException e){
JOptionPane.showMessageDialog(this,"No Supplier exists with this name");
}
// dataTable.revalidate();
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/*
* If Nimbus (introduced in Java SE 6) is not available, stay with the
* default look and feel. For details see
* http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(SupplierForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(SupplierForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(SupplierForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(SupplierForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/*
* Create and display the form
*/
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new SupplierForm().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JTable dataTable;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JComboBox supplierCombo;
// End of variables declaration
}
按钮编辑器.java
class ButtonEditor extends DefaultCellEditor {
protected JButton button;
private String label;
private boolean isPushed;
public ButtonEditor(JCheckBox checkBox) {
super(checkBox);
button = new JButton();
button.setOpaque(true);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
});
}
public Component getTableCellEditorComponent(JTable dataTable, Object value,
boolean isSelected, int row, int column) {
if (isSelected) {
button.setForeground(dataTable.getSelectionForeground());
button.setBackground(dataTable.getSelectionBackground());
} else {
button.setForeground(dataTable.getForeground());
button.setBackground(dataTable.getBackground());
}
label = (value == null) ? "" : value.toString();
button.setText(label);
isPushed = true;
return button;
}
public Object getCellEditorValue() {
if (isPushed) {
//
//
JOptionPane.showMessageDialog(button, label + ": Ouch!");
// System.out.println(label + ": Ouch!");
}
isPushed = false;
return new String(label);
}
public boolean stopCellEditing() {
isPushed = false;
return super.stopCellEditing();
}
protected void fireEditingStopped() {
super.fireEditingStopped();
}
}
ButtonRenderer.java
public class ButtonRenderer extends JButton implements TableCellRenderer{
public ButtonRenderer() {
setOpaque(true);
}
public Component getTableCellRendererComponent(JTable dataTable, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(dataTable.getSelectionForeground());
setBackground(dataTable.getSelectionBackground());
} else {
setForeground(dataTable.getForeground());
setBackground(UIManager.getColor("Button.background"));
}
setText((value == null) ? "" : value.toString());
return this;
}
}