Activiti6-Modeler/src/main/resources/mapper/MyActivitiMapper.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.activiti6.mapper.MyActivitiMapper">


    <delete id="deleteGroupByUserId">
        delete from ACT_ID_MEMBERSHIP  where USER_ID_ = #{userId}
    </delete>
</mapper>