使用Java Swing的JComboBox实现Html中Select的key-value功能

1、自定义列表项类Item

public class Item {private int key;private String value;public Item(int key, String value){this.key = key;this.value = value;}public void setKey(int key) {this.key = key;}public int getKey() {return key;}public void setValue(String value) {this.value = value;}public String getValue() {return value;}public String toString(){return value;}}

2、向JComboBox中插入数据

Item item = new Item(key, value);cb.addItem(item);

3、获取当前选择项

Item item = (Item)cb.getSelectedItem();

调用item.getKey()和item.getValue()获取key和value值