Java 中对于枚举双值的使用

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转成键值对或者是map 的形式；

键值对的类

public class Kav {/** * 键 */private String key;/** * 值 */private String value;public String getKey() {return key;}public void setKey(String key) {this.key = key;}public String getValue() {return value;}public void setValue(String value) {this.value = value;}}

枚举：

public enum AprrovalStatus {COMMITED(1L, "待审批"), APPROVALED(2L, "已审批通过"), REJECTED(3L, "已拒绝"), SYNCHRONIZED(4L, "已同步"),EXPIRED(5L,"已失效"),TEMPORARY(6L,"暂存"),REMOVE(7L,"撤回");private final Long key;private final String value;public Long getKey() {return key;}public String getValue() {return value;}AprrovalStatus(Long key, String value) {this.key = key;this.value = value;}/** * 根据key获取value *  * @param key *            : 键值key * @return String */public static String getValueByKey(String key) {AprrovalStatus[] enums = AprrovalStatus.values();for (int i = 0; i < enums.length; i++) {if (enums[i].getKey().equals(key)) {return enums[i].getValue();}}return "";}/** * 转换为'KAV'列表 *  * @return List<Kav> */public static List<Kav> toKavs() {List<Kav> l_kavs = new ArrayList<Kav>();AprrovalStatus[] enums = AprrovalStatus.values();for (int i = 0; i < enums.length; i++) {Kav kav = new Kav();kav.setKey(enums[i].getKey().toString());kav.setValue(enums[i].getValue());l_kavs.add(kav);}return l_kavs;}/** * 转换为MAP集合 *  * @returnMap<String, String> */public static Map<String, String> toMap() {Map<String, String> map = new HashMap<String, String>();AprrovalStatus[] enums = AprrovalStatus.values();for (int i = 0; i < enums.length; i++) {map.put(enums[i].getKey().toString(), enums[i].getValue());}return map;}}

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