是的,使用 JComboBox 来呈现您的单元格:
import java.awt.Component;
import java.util.Enumeration;
import java.util.Vector;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
public class Test4 {
private static class ComboBoxCellRenderer extends JComboBox implements TableCellRenderer {
public ComboBoxCellRenderer(int column) {
for (int i = 0; i < 10; i++) {
addItem("Cell (" + i + "," + column + ")");
}
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
setSelectedItem(value);
return this;
}
}
protected void initUI() {
JFrame frame = new JFrame("test");
frame.add(getTable());
frame.pack();
frame.setVisible(true);
}
private Component getTable() {
Vector<Vector<String>> data = new Vector<Vector<String>>();
for (int i = 0; i < 10; i++) {
Vector<String> row = new Vector<String>();
for (int j = 0; j < 3; j++) {
row.add("Cell (" + i + "," + j + ")");
}
data.add(row);
}
Vector<String> columns = new Vector<String>();
columns.add("Column 1");
columns.add("Column 2");
columns.add("Column 3");
DefaultTableModel model = new DefaultTableModel(data, columns);
JTable table = new JTable(model);
table.setRowHeight(20);
int i = 0;
Enumeration<TableColumn> c = table.getColumnModel().getColumns();
while (c.hasMoreElements()) {
TableColumn column = c.nextElement();
column.setCellRenderer(new ComboBoxCellRenderer(i));
i++;
}
JScrollPane scroll = new JScrollPane(table);
scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
return scroll;
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Test4().initUI();
}
});
}
}