java-insagent-pc/target/classes/mapper/modules/admin/SysPosterMapper.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.ydtech.modules.admin.dao.SysPosterMapper">

    <sql id="Base_Column_List">
        SELECT
            sp.id,type,title,file_id,iuf.url,iuf.update_time,iuf.username
        FROM sys_poster sp,
             ins_upload_files iuf
    </sql>

    <sql id="Base_Where">
        <where>
            1=1
            AND
            sp.file_id = iuf.id
            <if test="sysPoster.type != null and sysPoster.type != ''">
                AND type = #{sysPoster.type}
            </if>
            <if test="sysPoster.title != null and sysPoster.title != ''">
                AND title like CONCAT('%', #{sysPoster.title}, '%')
            </if>
        </where>
    </sql>

    <select id="posterList" resultType="com.ydtech.modules.admin.model.SysPoster">
        <include refid="Base_Column_List"/>
        <include refid="Base_Where"/>
            ORDER BY update_time DESC
    </select>

</mapper>