comboBox.setModel(new DefaultComboBoxModel(getProvince())); // 添加省份信息
final JLabel label = new JLabel();
label.setText(“省/直辖市”);
label.setBounds(155, 30, 66, 18);
panel.add(label);
final JLabel label_1 = new JLabel();
label_1.setText(“市/县”);
label_1.setBounds(375, 30, 37, 18);
panel.add(label_1);
final JLabel label_2 = new JLabel();
label_2.setBounds(36, 43, 65, 18);
backgroundPanel.add(label_2);
label_2.setHorizontalAlignment(SwingConstants.RIGHT);
label_2.setHorizontalTextPosition(SwingConstants.LEADING);
label_2.setText(“姓 名：”);
textField = new JTextField();
textField.setBounds(113, 38, 154, 28);
backgroundPanel.add(textField);
final JLabel label_3 = new JLabel();
label_3.setBounds(36, 84, 65, 18);
backgroundPanel.add(label_3);
label_3.setHorizontalAlignment(SwingConstants.RIGHT);
label_3.setHorizontalTextPosition(SwingConstants.LEADING);
label_3.setText(“性 别：”);
comboBox_1 = new JComboBox();
comboBox_1.setBounds(113, 81, 66, 25);
backgroundPanel.add(comboBox_1);
comboBox_1.setModel(new DefaultComboBoxModel(new String[] {“男”, “女”}));
final JLabel label_4 = new JLabel();
label_4.setBounds(36, 212, 65, 18);
backgroundPanel.add(label_4);
label_4.setHorizontalAlignment(SwingConstants.RIGHT);
label_4.setHorizontalTextPosition(SwingConstants.LEADING);
label_4.setText(“详细地址：”);
textField_1 = new JTextField();
textField_1.setBounds(113, 208, 367, 28);
backgroundPanel.add(textField_1);
final JLabel label_4_1 = new JLabel();
label_4_1.setBounds(36, 252, 65, 18);
backgroundPanel.add(label_4_1);
label_4_1.setHorizontalTextPosition(SwingConstants.LEADING);
label_4_1.setHorizontalAlignment(SwingConstants.RIGHT);
label_4_1.setText(“E-mail：”);
textField_3 = new JTextField();
textField_3.setBounds(113, 248, 367, 27);
backgroundPanel.add(textField_3);
final JButton button = new JButton();
button.setBounds(159, 289, 75, 28);
backgroundPanel.add(button);
button.setText(“保存”);
final JButton button_1 = new JButton();
button_1.setBounds(265, 289, 75, 28);
backgroundPanel.add(button_1);
button_1.setText(“重置”);
//
}
/**
* 获取省、直辖市，自治区
*
* @return
*/
public Object[] getProvince() {
Map map = CityMap.model;// 获取省份信息保存到Map中
Set set = map.keySet(); // 获取Map集合中的键，并以Set集合返回
Object[] province = set.toArray(); // 转换为数组
return province; // 返回获取的省份信息
}
/**
* 获取指定省对应的市/县
*
* @param selectProvince
* @return
*/
public String[] getCity(String selectProvince) {
Map map = CityMap.model; // 获取省份信息保存到Map中
String[] arrCity = map.get(selectProvince); // 获取指定键的值
return arrCity; // 返回获取的市/县
}
private void itemChange() {
String selectProvince = (String) comboBox.getSelectedItem();
cityComboBox.removeAllItems(); // 清空市/县列表
String[] arrCity = getCity(selectProvince); // 获取市/县
cityComboBox.setModel(new DefaultComboBoxModel(arrCity)); // 重新添加市/县列表的值
}
}
效果如图：
