枚举类模板

import lombok.Getter;

public enum EnumDemo {
    ONE(1, "齐国"), TWO(2, "楚国"), THREE(3, "燕国"),
    FOUR(4, "赵国"), FIVE(5, "魏国"), SIX(6, "韩国");

    @Getter
    private Integer retCode;//枚举对应的第一字段
    @Getter
    private String retMessage;//枚举对应的第二字段

    EnumDemo(Integer retCode, String retMessage) {
        this.retCode = retCode;
        this.retMessage = retMessage;
    }

    public static EnumDemo forEach_CountryEnum(int index) {
        EnumDemo[] myArray = EnumDemo.values();//获得所有的枚举
        for (EnumDemo countryEnum : myArray) {
            if (index == countryEnum.retCode) {
                return countryEnum;
            }
        }
        return null;
    }

    //使用
    public static void main(String[] args) {
        String retMessage = EnumDemo.forEach_CountryEnum(4).getRetMessage();
        System.out.println(retMessage);
    }
}