很不错的代码（在Java JTable窗体上添加日历）
以JTable窗体形式选择日期。
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Calendar;
import javax.swing.BorderFactory;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JSpinner;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.SpinnerNumberModel;
import javax.swing.border.BevelBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class CaDialog extends javax.swing.JDialog {
private int row;
private int column;
private JTextField jtf;
public String day = null;
private JSpinner yearSpinner;
private JTable dadeTable;
private JScrollPane jScrollPane1;
private JComboBox monthComboBox;
Calendar time = Calendar.getInstance();// 实例化一个日历类对象
Object[][] data = new Object[6][7];
String[] head = { "日", "一", "二", "三", "四", "五", "六" };
public static void main(String[] args) {
JFrame frame = new JFrame();
CaDialog inst = new CaDialog(frame);
inst.setVisible(true);
}
public CaDialog(JFrame frame) {
super(frame);
initGUI();
}
public CaDialog(JTextField jtf) {
super();
this.jtf=jtf;
initGUI();
}
private void initGUI() {
try {
{
getContentPane().setLayout(null);
this.setModal(true);
}
this.setSize(253, 202);
{
ComboBoxModel jComboBox1Model = new DefaultComboBoxModel(
new String[] { "一月", "二月", "三月", "四月", "五月", "六月","七月",
"八月", "九月", "十月", "十一月", "十二月" });
monthComboBox = new JComboBox();
getContentPane().add(monthComboBox);
monthComboBox.setModel(jComboBox1Model);
monthComboBox.setSelectedIndex(Calendar.getInstance().get(
Calendar.MONTH));
monthComboBox.setBounds(10, 5, 105, 21);
monthComboBox.setMaximumRowCount(4);
monthComboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
monthComboBoxActionPerformed(evt);
}
});
}
{
SpinnerNumberModel yearSpinnerModel = new SpinnerNumberModel(1983,1950,2099,1);
yearSpinner = new JSpinner(yearSpinnerModel);
yearSpinner.setValue(Calendar.getInstance().get(
Calendar.YEAR));
JSpinner.NumberEditor editor = new JSpinner.NumberEditor(
yearSpinner, "###");
yearSpinner.setEditor(editor);
this.add(yearSpinner);
getContentPane().add(yearSpinner);
yearSpinner.setModel(yearSpinnerModel);
yearSpinner.setBounds(127, 5, 105, 21);
yearSpinner.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent evt) {
yearSpinnerStateChanged(evt);
}
});
}
{
jScrollPane1 = new JScrollPane();
getContentPane().add(jScrollPane1);
jScrollPane1.setBounds(9, 37, 224, 117);
{
this.in();
TableModel jTable1Model = new DefaultTableModel(data, head)
{public boolean isCellEditable(int row, int column)
{return false;}
};;
dadeTable = new JTable(jTable1Model);
dadeTable.getTableHeader().setReorderingAllowed(false);
dadeTable.getTableHeader().setResizingAllowed(false);
jScrollPane1.setViewportView(dadeTable);
dadeTable.setCellSelectionEnabled(true);
dadeTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
dadeTable.getTableHeader().setEnabled(false);
dadeTable.setGridColor(Color.WHITE);
dadeTable.setDefaultRenderer(Object.class, new TableCellRenderer(){
// @Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected,
boolean hasFocus, int r, int c) {
// TODO Auto-generated method stub
JLabel cell = new JLabel(value==null?"":String.valueOf(value),0);
cell.setOpaque(true);
if(isSelected&&dadeTable.getValueAt(r,c)!=null){
cell.setBackground(Color.GRAY);
}
if(r==row&&c==column){
cell.setBorder(BorderFactory.createEtchedBorder(BevelBorder.LOWERED));
}
return cell;
}
});
dadeTable.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
dateTableMouseClicked(evt);
}
});
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void dateTableMouseClicked(MouseEvent evt) {
try{
String date = String.valueOf(dadeTable.getValueAt(dadeTable
.getSelectedRow(), dadeTable.getSelectedColumn()));
if (date.equals("null")) {
JOptionPane.showMessageDialog(this, "请选择日期！");
return;
}
if (evt.getClickCount() == 2) {
String year = yearSpinner.getValue().toString();
int month = monthComboBox.getSelectedIndex() + 1;
day = year + "-" + (String.valueOf(month).length()==1?"0"+month:month) + "-" + (String.valueOf(date).length()==1?"0"+date:date);
this.jtf.setText(day);
this.dispose();
}
}catch(Exception e){}
}
private void monthComboBoxActionPerformed(ActionEvent evt) {
time.set(Calendar.MONTH, monthComboBox.getSelectedIndex());
data = (Object[][]) this.clear();
this.in();
TableModel dateTableModel = new DefaultTableModel(data, head)
{public boolean isCellEditable(int row, int column)
{return false;}
};
dadeTable.setModel(dateTableModel);
}
private void yearSpinnerStateChanged(ChangeEvent evt) {
time.set(Calendar.YEAR, Integer.parseInt(String.valueOf(yearSpinner
.getValue())));
data = (Object[][]) this.clear();
this.in();
TableModel dateTableModel = new DefaultTableModel(data, head)
{public boolean isCellEditable(int row, int column)
{return false;}
};
dadeTable.setModel(dateTableModel);
}
public void in() {
int today = Calendar.getInstance().get(Calendar.DATE);
time.set(Calendar.DATE, 1);// 设置日期为1号
int w = time.get(Calendar.DAY_OF_WEEK) - 1;// 得一号星期几
time.add(Calendar.MONTH, 1); // 月份+1
time.add(Calendar.DAY_OF_MONTH, -1);// 退一天
int day = time.get(Calendar.DATE);// 得到本月最后一天,本月天数
int c = 0;
for (int i = 1; i <= day; i++) {
if ((i + w) % 7 == 0) {
c = (int) (i + w) / 7 - 1;
} else {
c = (int) (i + w) / 7;
}
data[c][(w + i - 1) % 7] = i;
if (i == today) {
row=c;
column=(w+i-1)%7;
}
}
}
public Object clear() {
return 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 }, };
}
}
调用方法：
CaDialog cai = new CaDialog(this.birthdayTextField1);
cai.setVisible(true);
cai.toFront();