jzg/authentication/src/main/resources/mapper/SysUserRoleMapper.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.jzg.mapper.SysUserRoleMapper">


    <select id="getUserRoleDataPre" resultType="com.jzg.entity.vo.SysRoleDataPreVo">
        SELECT
        *
        FROM
        sys_user_role sur
        left join sys_role_data_pre srdp on sur.role_id = srdp.role_id AND srdp.is_delete = 0
        left join sys_role_data_pre_link srdpl on srdp.role_id = srdpl.role_id AND srdpl.is_delete = 0
        <where>
            AND sur.is_delete = 0
            <if test="userId != null">
                AND sur.user_id = #{userId}
            </if>
        </where>
    </select>
</mapper>