db_mcyc/xzl-admin/src/main/resources/mapper/KnowledgeFileMapper.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.xzl.web.mapper.KnowledgeFileMapper">

    <resultMap type="KnowledgeFile" id="SysFileResult">
        <result property="fileId"    column="file_id"    />
        <result property="folderId"    column="folder_id"    />
        <result property="fileName"    column="file_name"    />
        <result property="fileType"    column="file_type"    />
        <result property="fileSize"    column="file_size"    />
        <result property="filePath"    column="file_path"    />
        <result property="downloadCount"    column="download_count"    />
        <result property="status"    column="status"    />
        <result property="delFlag"    column="del_flag"    />
        <result property="createBy"    column="create_by"    />
        <result property="createTime"    column="create_time"    />
        <result property="updateBy"    column="update_by"    />
        <result property="updateTime"    column="update_time"    />
        <!-- 添加文件夹名称映射 -->
        <result property="folderName"   column="folder_name"  />
    </resultMap>

    <sql id="selectSysFileVo">
        select file_id, folder_id, file_name, file_type, file_size, file_path, download_count, status, del_flag, create_by, create_time, update_by, update_time from sys_file
    </sql>

    <select id="selectSysFileList" parameterType="KnowledgeFile" resultMap="SysFileResult">
        SELECT
        a.*,b.folder_name
        FROM
        sys_file a
        LEFT JOIN sys_file_folder b on a.folder_id=b.folder_id
        <where>
            <if test="folderId != null "> and a.folder_id = #{folderId}</if>
            <if test="fileName != null  and fileName != ''"> and a.file_name like concat('%', #{fileName}, '%')</if>
            <if test="fileType != null  and fileType != ''"> and a.file_type = #{fileType}</if>
            <if test="fileSize != null "> and a.file_size = #{fileSize}</if>
            <if test="filePath != null  and filePath != ''"> and a.file_path = #{filePath}</if>
            <if test="downloadCount != null "> and a.download_count = #{downloadCount}</if>
            <if test="status != null  and status != ''"> and a.status = #{status}</if>
        </where>
    </select>

    <select id="selectSysFileByFileId" parameterType="Long" resultMap="SysFileResult">
        <include refid="selectSysFileVo"/>
        where file_id = #{fileId}
    </select>

    <insert id="insertSysFile" parameterType="KnowledgeFile" useGeneratedKeys="true" keyProperty="fileId">
        insert into sys_file
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="folderId != null">folder_id,</if>
            <if test="fileName != null and fileName != ''">file_name,</if>
            <if test="fileType != null">file_type,</if>
            <if test="fileSize != null">file_size,</if>
            <if test="filePath != null">file_path,</if>
            <if test="downloadCount != null">download_count,</if>
            <if test="status != null">status,</if>
            <if test="delFlag != null">del_flag,</if>
            <if test="createBy != null">create_by,</if>
            <if test="createTime != null">create_time,</if>
            <if test="updateBy != null">update_by,</if>
            <if test="updateTime != null">update_time,</if>
         </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">
            <if test="folderId != null">#{folderId},</if>
            <if test="fileName != null and fileName != ''">#{fileName},</if>
            <if test="fileType != null">#{fileType},</if>
            <if test="fileSize != null">#{fileSize},</if>
            <if test="filePath != null">#{filePath},</if>
            <if test="downloadCount != null">#{downloadCount},</if>
            <if test="status != null">#{status},</if>
            <if test="delFlag != null">#{delFlag},</if>
            <if test="createBy != null">#{createBy},</if>
            <if test="createTime != null">#{createTime},</if>
            <if test="updateBy != null">#{updateBy},</if>
            <if test="updateTime != null">#{updateTime},</if>
         </trim>
    </insert>

    <update id="updateSysFile" parameterType="KnowledgeFile">
        update sys_file
        <trim prefix="SET" suffixOverrides=",">
            <if test="folderId != null">folder_id = #{folderId},</if>
            <if test="fileName != null and fileName != ''">file_name = #{fileName},</if>
            <if test="fileType != null">file_type = #{fileType},</if>
            <if test="fileSize != null">file_size = #{fileSize},</if>
            <if test="filePath != null">file_path = #{filePath},</if>
            <if test="downloadCount != null">download_count = #{downloadCount},</if>
            <if test="status != null">status = #{status},</if>
            <if test="delFlag != null">del_flag = #{delFlag},</if>
            <if test="createBy != null">create_by = #{createBy},</if>
            <if test="createTime != null">create_time = #{createTime},</if>
            <if test="updateBy != null">update_by = #{updateBy},</if>
            <if test="updateTime != null">update_time = #{updateTime},</if>
        </trim>
        where file_id = #{fileId}
    </update>

    <delete id="deleteSysFileByFileId" parameterType="Long">
        delete from sys_file where file_id = #{fileId}
    </delete>

    <delete id="deleteSysFileByFileIds" parameterType="String">
        delete from sys_file where file_id in
        <foreach item="fileId" collection="array" open="(" separator="," close=")">
            #{fileId}
        </foreach>
    </delete>

    <update id="updateSysFileStatus">
        UPDATE sys_file
        SET status = #{status}, update_time = now()
        WHERE file_id = #{fileId}
    </update>

</mapper>