CorrectionDao.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="io.hmit.modules.activiti.demo.dao.CorrectionDao">

    <update id="updateInstanceId">
        update tb_correction set instance_id = #{instanceId} where id = #{id}
    </update>
</mapper>