hospital/ruoyi-admin/src/main/resources/mapper/work/Pv2Mapper.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.ruoyi.web.work.mapper.Pv2Mapper">
    
    <select id="selectList" resultType="com.ruoyi.web.work.domain.Pv2">
        select * from tb_pv2
        <where>  
            <if test="patientId != null "> and patient_id = #{patientId}</if>
            <if test="level != null  and level != ''"> and level = #{level}</if>
            <if test="entryTime != null  and entryTime != ''"> and entry_time = #{entryTime}</if>
            <if test="exitTime != null  and exitTime != ''"> and exit_time = #{exitTime}</if>
            <if test="reasonArea != null  and reasonArea != ''"> and reason_area = #{reasonArea}</if>
            <if test="babyCode != null  and babyCode != ''"> and baby_code = #{babyCode}</if>
            <if test="msgId != null  and msgId != ''"> and msg_id = #{msgId}</if>
        </where>
    </select>

</mapper>