Bonus-Cloud-Material-Mall/bonus-modules/bonus-material-mall/src/main/resources/mapper/material/user/UserMapper.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.bonus.material.user.mapper.UserMapper">
    <update id="editUser">
        update sys_user
        <trim prefix="SET" suffixOverrides=",">
        <if test="phoneNumber != null and phoneNumber != ''">phonenumber = #{phoneNumber},</if>
        <if test="deptId != null">dept_id = #{deptId},</if>
        </trim>
        where user_id = #{userId}
    </update>

    <select id="getUserById" resultType="com.bonus.material.user.entity.UserDto">
        SELECT
            su.*,
            SUM(
                    IF
                        ( is_read = 0, 1, 0 )) AS msgNum
        FROM
            sys_user su
                LEFT JOIN bm_message bm ON su.user_id = bm.to_user
        WHERE
            su.user_id =#{userId}
    </select>
</mapper>