枚举类创建

package com.test.enums;

public enum ClassEnum {
    FIRST(0, "第一"),
    SECOND(1, "第二"),
    THIRDLY(2, "第三");

    private Integer code;

    private String value;

    ClassEnum(Integer code, String value) {
        this.value = value;
        this.code = code;
    }

    public String getValue() {
        return value;
    }

    public Integer getCode() {
        return code;
    }

    public static Integer getCodeByValue(String value) {
        for (ClassEnum item : ClassEnum.values()) {
            if (item.getValue().equals(value)) {
                return item.getCode();
            }
        }
        return null;
    }

    public static String getValueByCode(Integer code) {
        for (ClassEnum item : ClassEnum.values()) {
            if (item.getCode().equals(code)) {
                return item.getValue();
            }
        }
        return null;
    }

}