根據enum的code,獲取描述信息

public class EnumUtil {

    public static <T extends CodeEnum> T getByCode(Integer code, Class<T> enumClass) {
        for (T each: enumClass.getEnumConstants()) {
            if (code.equals(each.getCode())) {
                return each;
            }
        }
        return null;
    }
}

/ **
* 枚舉類的父級接口
*/
public interface CodeEnum {
    Integer getCode();
}

 

2.所有的enum需要實現CodeEnum接口

public enum NoticeEnum implements CodeEnum {
    TEST1(1,"成功"),
    TEST2(2,"失敗");


    private int code;
    private String msg;

    NoticeEnum(int code, String msg) {
        this.code = code;
        this.msg = msg;
    }


    public String getMsg() {
        return msg;
    }

    @Override
    public Integer getCode() {
        return code;
    }
}

3.調用

String msg = EnumUtil.getByCode(1, NoticeEnum.class);

//輸出結果
成功