znpt-backend/core/src/main/resources/mapper/PartMapper.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.dite.znpt.mapper.PartMapper">


    <select id="queryBySelective" resultType="com.dite.znpt.domain.vo.PartListResp">
        SELECT
            pa.part_id, t.project_id, pr.project_name, t.turbine_id, t.turbine_name, pa.part_name, pa.part_code, pa.part_type, pa.part_desc
        FROM part pa
        LEFT JOIN turbine t ON pa.turbine_id = t.turbine_id
        LEFT JOIN project pr ON t.project_id = pr.project_id
        <where>
            <if test="keyword != null and keyword != ''">
#                and (pa.part_name like concat('%', #{keyword,jdbcType=VARCHAR}, '%') or pa.part_code like concat('%', #{keyword,jdbcType=VARCHAR}, '%'))
            </if>
            <if test="projectId != null and projectId != ''">
                and t.project_id = #{projectId}
            </if>
            <if test="turbineId != null and turbineId != ''">
                and t.turbine_id = #{turbineId}
            </if>
            <if test="partType != null and partType != ''">
                and a.part_type = #{partType}
            </if>
            <if test="partManufacturer != null and partManufacturer != ''">
                and a.part_manufacturer like concat ('%', #{partManufacturer}, '%')
            </if>
            <if test="partModel != null and partModel != ''">
                and a.part_model like concat ('%', #{partModel}, '%')
            </if>
        </where>
    </select>
</mapper>