gold_java/src/main/resources/mapper/RechargeMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.example.demo.mapper.RechargeMapper">
<select id="getRechargeA" resultType="com.example.demo.domain.vo.RechargeA">
    SELECT
    CASE
    WHEN flag = 0 THEN '待审核'
    WHEN flag = 1 THEN '已通过'
    WHEN flag = 2 THEN '已驳回'
    ELSE '其他状态'
    END AS flag,
    COUNT(*) AS Raudit,
    SUM(paid_gold) AS SumRaudit,
    SUM(free_gold) AS SumRaudit1,
    (SUM(paid_gold) + SUM(free_gold)) AS SumRaudit2
    FROM
    recharge
    WHERE
    flag IN
    <foreach collection="flags" item="flag" open="(" separator="," close=")">
        #{flag}
    </foreach>
    GROUP BY
    flag;
</select>
    </mapper>