定一个枚举类型

package com.wucaimu.enums;

import com.baomidou.mybatisplus.annotation.EnumValue;
import lombok.Getter;

@Getter
public enum UserStatus {
    NORMAL(1,"正常"),
    FREEZEN(0,"冻结"),
        ;


    private final int value;
    private final String msg;

    UserStatus(int value, String msg) {
        this.value = value;
        this.msg = msg;
    }

}

Mybatis plus 处理

增加注解

package com.wucaimu.enums;

import com.baomidou.mybatisplus.annotation.EnumValue;
import lombok.Getter;

@Getter
public enum UserStatus {
    NORMAL(1,"正常"),
    FREEZEN(0,"冻结"),
        ;

    @EnumValue
    private final int value;
    private final String msg;

    UserStatus(int value, String msg) {
        this.value = value;
        this.msg = msg;
    }

}

并且，在 application.yml 中设置

mybatis-plus:
  configuration:
    # MyBatis 配置
    map-underscore-to-camel-case: true
    cache-enabled: false    # 是否开启二级缓存
    default-enum-type-handler: com.baomidou.mybatisplus.core.handlers.MybatisEnumTypeHandler

这个结果的返回值是 NORMAL or FREEZEN 。

如果需要返回，1 or 2 或者 汉字（msg）则需要配置

package com.wucaimu.enums;

import com.baomidou.mybatisplus.annotation.EnumValue;
import lombok.Getter;

@Getter
public enum UserStatus {
    NORMAL(1,"正常"),
    FREEZEN(0,"冻结"),
        ;

    @EnumValue
    private final int value;
    @JsonValue
    private final String msg;

    UserStatus(int value, String msg) {
        this.value = value;
        this.msg = msg;
    }

}

// 给前端返回，是通过 Spring boot 控制的