RMS_Backend/RMS/target/classes/mapper/AssoTaskPersonelMapper.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="cn.cslg.report.mapper.AssoTaskPersonelMapper">
    <select id="getPatentNumber" resultType="java.lang.String">
        select PATENT_NO  from ASSO_TASK_PERSONEL
       where PERSON_ID=#{personelId} and STATE=#{state} and TASK_ID=#{taskId}
    </select>

</mapper>