yvjia/src/main/resources/mapper/upload/SysFileDao.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.backendsys.modules.upload.dao.SysFileDao">

    <sql id="includeFile">
        id,
        COALESCE(category_id, '') category_id,
        COALESCE(request_id, '') request_id,
        COALESCE(upload_id, '') upload_id,
        user_id,
        name,
        content_type,
        url,
        COALESCE(url_thumb, '') url_thumb,
        COALESCE(object_key, '') object_key,
        size,
        md5,
        target,
        create_time,
        update_time
    </sql>

    <!-- type="java.util.LinkedHashMap" -->
    <resultMap id="resultMapFileList" type="com.backendsys.modules.upload.entity.SysFile">
        <id property="id" column="id" jdbcType="BIGINT" />
        <result property="category_id" column="category_id" javaType="java.lang.Long" />
        <result property="request_id" column="request_id" />
        <result property="upload_id" column="upload_id" />
        <result property="user_id" column="user_id" javaType="java.lang.Long" />
        <result property="name" column="name" />
        <result property="content_type" column="content_type" />
        <result property="url" column="url" />
        <result property="url_thumb" column="url_thumb" />
        <result property="object_key" column="object_key" />
        <result property="size" column="size" javaType="java.lang.Long" />
        <result property="md5" column="md5" />
        <result property="target" column="target" javaType="java.lang.Integer" />
        <result property="create_time" column="create_time" />
        <result property="update_time" column="update_time" />
    </resultMap>

    <select id="selectUploadFileList" resultMap="resultMapFileList">
        SELECT <include refid="includeFile" /> FROM sys_file
        <where>
            <if test="name != null and name != ''">
                AND name LIKE CONCAT('%', #{name}, '%')
            </if>
            <if test="category_id != null and category_id != ''">
                AND category_id = #{category_id}
            </if>
            <if test="user_id != null and user_id != ''">
                AND user_id = #{user_id}
            </if>
            <if test="object_key != null and object_key != ''">
                AND object_key = #{object_key}
            </if>
            <if test="target != null and target != ''">
                AND target = #{target}
            </if>
        </where>
        ORDER BY create_time DESC
    </select>

</mapper>