java - 检索 Jaxb 转换的 Enum 类中的 @XmlEnumValue 注释属性值

Question

@XmlType(name = "WeekEnum")
@XmlEnum
public enum WeekEnum implements Serializable {

    MONDAY("Monday"),

    @XmlEnumValue("SUNDAY.ON")
    SUNDAY("Sunday")

    private final String value;

    WeekEnum(String v) {
        value = v;
    }

    public String value() {
        return value;
    }

    public static WeekEnum fromValue(String v) {
        for (WeekEnum c: WeekEnum.values()) {
            if (c.value.equals(v)) {
                return c;
            }
        }

        throw new IllegalArgumentException(v);
    }
}

我有一个 Enum 类 WeekEnum，它是一个 Jaxb 类。

WeekEnum day = WeekEnum.SUNDAY;

要从枚举 day 获取值“Sunday”，我们编写 day.value();

要从枚举 day 中获取值“SUNDAY”，我们编写 day.name();

我们如何从 Eum day 获取值“SUNDAY.ON”？？

如果我有值“Sunday”，我们如何获得相应的“SUNDAY.ON”？？

Answer 1

您需要将其存储在与值类似的单独变量中。

@XmlType(name = "WeekEnum")
@XmlEnum
public enum WeekEnum implements Serializable {

MONDAY("Monday"),

@XmlEnumValue("SUNDAY.ON")
SUNDAY("Sunday", "SUNDAY.ON")

private final String value;
private final String xmlValue;

WeekEnum(String v) {
    value = v;
}
WeekEnum(String v, String xmlValue){
   this(v);
   this.xmlValue = xmlValue;
}

public String value() {
    return value;
}

public String getXmlValue() {
    return xmlValue;
}

public static WeekEnum fromValue(String v) {
    for (WeekEnum c: WeekEnum.values()) {
        if (c.value.equals(v)) {
            return c;
        }
    }

    throw new IllegalArgumentException(v);
}
}