yunsu/target/classes/main/resources/mapper/CompanyMapper.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.hssx.cloudmodel.mapper.CompanyMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.hssx.cloudmodel.entity.Company">
        <id column="id" property="id" />
        <result column="company_name" property="companyName" />
        <result column="company_address" property="companyAddress" />
        <result column="company_type" property="companyType" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, company_name, company_address, company_type
    </sql>

    <select id="getListByKeyName" resultMap="BaseResultMap">
        select
        <include refid="Base_Column_List"/>
        from
        tb_company
        <where>
            <if test="keyName != null and keyName != ''">
                company_name like concat('%',#{keyName},'%')
            </if>
        </where>
        Limit #{start},#{pageSize}
    </select>

</mapper>