refactor TempFileService, use Attachment and mongodb

src/main/java/com/imyeyu/api/modules/common/bean/SettingKey.java

@@ -131,7 +131,7 @@ public enum SettingKey {
 
 	MUSIC_CONTROLLER_URI,
 
-	// ----------  ----------
+	// ---------- 日记 ----------
 
 	JOURNAL_KEY,
 
@@ -139,7 +139,22 @@ public enum SettingKey {
 
 	JOURNAL_APP_SECRET,
 
-	JOURNAL_TRAVEL,
+	// ---------- 临时文件 ----------
+
+	/** 临时文件最小缓存时间 */
+	TEMP_FILE_TTL_MIN,
+
+	/** 临时文件最长缓存时间 */
+	TEMP_FILE_TTL_MAX,
+
+	/** 临时文件默认缓存时间 */
+	TEMP_FILE_TTL_DEFAULT,
+
+	/** 已过期的临时文件保留时间 */
+	TEMP_FILE_RESIDUE_TIME,
+
+	/** 每个 IP 限制有效临时文件容量 */
+	TEMP_FILE_LIMIT,
 
 	// ---------- 系统 ----------
 

src/main/java/com/imyeyu/api/modules/common/bean/TempFileMetaData.java

@@ -1,26 +0,0 @@
-package com.imyeyu.api.modules.common.bean;
-
-import lombok.Data;
-
-import java.nio.file.Path;
-
-/**
- * @author 夜雨
- * @since 2025-09-27 01:47
- */
-@Data
-public class TempFileMetaData {
-
-	private String id;
-
-	private String name;
-
-	private String originalName;
-
-	private Path path;
-
-	private Long lastAccessAt;
-
-	/** 缓存时长（毫秒） */
-	private Long ttl;
-}

src/main/java/com/imyeyu/api/modules/common/controller/CommonController.java

@@ -5,7 +5,6 @@ import com.google.gson.reflect.TypeToken;
 import com.imyeyu.api.bean.CaptchaFrom;
 import com.imyeyu.api.modules.common.bean.ImageType;
 import com.imyeyu.api.modules.common.bean.SettingKey;
-import com.imyeyu.api.modules.common.bean.TempFileMetaData;
 import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.api.modules.common.entity.Setting;
 import com.imyeyu.api.modules.common.entity.Task;
@@ -63,12 +62,8 @@ import java.awt.Graphics2D;
 import java.awt.RenderingHints;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayInputStream;
-import java.io.File;
 import java.io.IOException;
-import java.io.RandomAccessFile;
 import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -392,29 +387,28 @@ public class CommonController {
 	/**
 	 * 读取临时文件
 	 *
-	 * @param fileId
+	 * @param mongoId mongoId
-	 * @param req
+	 * @param req     请求
-	 * @param resp
+	 * @param resp    返回
 	 */
 	@AOPLog
 	@RequestRateLimit
 	@IgnoreGlobalReturn
-	@GetMapping("/temp/file/read/{fileId}")
+	@GetMapping("/temp/file/read/{mongoId}")
-	public void tempFileRead(@PathVariable String fileId, HttpServletRequest req, HttpServletResponse resp) {
+	public void tempFileRead(@PathVariable String mongoId, HttpServletRequest req, HttpServletResponse resp) {
 		try {
-			File file = tempFileService.get(fileId);
+			Attachment attach = attachmentService.getByMongoId(mongoId);
-			if (TimiJava.isEmpty(file) && file.exists()) {
+			if (TimiJava.isEmpty(attach)) {
 				resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
 				return;
 			}
-			Path filePath = file.toPath();
+			GridFSFile file = attachmentService.readByMongoId(attach.getMongoId());
-			resp.setContentLengthLong(Files.size(filePath));
+			GridFSDownloadStream downloadStream = gridFSBucket.openDownloadStream(file.getObjectId());
-			String mimeType = new Tika().detect(filePath);
+			GridFsResource gridFsResource = new GridFsResource(file, downloadStream);
-			if (TimiJava.isNotEmpty(mimeType)) {
+			req.setAttribute(ResourceHandler.ATTR_TYPE, ResourceHandler.Type.MONGO);
-				resp.setContentType(mimeType);
+			req.setAttribute(ResourceHandler.ATTR_VALUE, gridFsResource);
-			}
+
-			req.setAttribute(ResourceHandler.ATTR_TYPE, ResourceHandler.Type.FILE);
+			resp.setContentType(attach.getMimeType());
-			req.setAttribute(ResourceHandler.ATTR_VALUE, filePath);
 			resourceHandler.handleRequest(req, resp);
 		} catch (Exception e) {
 			resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
@@ -424,41 +418,40 @@ public class CommonController {
 	/**
 	 * 下载临时文件
 	 *
-	 * @param fileId
+	 * @param mongoId
 	 * @param resp
 	 */
 	@AOPLog
 	@RequestRateLimit
 	@IgnoreGlobalReturn
-	@RequestMapping("/temp/file/download/{fileId}")
+	@RequestMapping("/temp/file/download/{mongoId}")
-	public void tempFileDownload(@PathVariable String fileId, HttpServletResponse resp) {
+	public void tempFileDownload(@PathVariable String mongoId, HttpServletResponse resp) {
 		try {
-			TempFileMetaData metadata = tempFileService.metadata(fileId);
+			Attachment attach = attachmentService.getByMongoId(mongoId);
-			File file = tempFileService.get(fileId);
+			if (TimiJava.isEmpty(attach)) {
-			if (TimiJava.isEmpty(file) && file.exists()) {
 				resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
 				return;
 			}
-			String mimeType = new Tika().detect(file);
+			resp.setContentType(attach.getMimeType());
-			resp.setContentType(mimeType);
+			resp.setHeader("Content-Disposition", Network.getFileDownloadHeader(attach.getName()));
-			resp.setHeader("Content-Disposition", Network.getFileDownloadHeader(metadata.getOriginalName()));
 			resp.setHeader("Accept-Ranges", "bytes");
 
-			RequestRange range = TimiSpring.requestRange(file.length());
+			GridFSFile file = attachmentService.readByMongoId(mongoId);
+			@Cleanup
+			GridFSDownloadStream downloadStream = gridFSBucket.openDownloadStream(file.getObjectId());
+			RequestRange range = TimiSpring.requestRange(attach.getSize());
 			if (range == null) {
 				// 完整文件
-				resp.setContentLengthLong(file.length());
+				resp.setContentLengthLong(attach.getSize());
 				resp.setStatus(HttpServletResponse.SC_OK);
-				IO.toOutputStream(resp.getOutputStream(), file);
+				IO.toOutputStream(downloadStream, resp.getOutputStream());
 			} else {
 				// 分片文件
 				resp.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
-				resp.setHeader("Content-Range", "bytes %s-%s/%s".formatted(range.getStart(), range.getEnd(), file.length()));
+				resp.setHeader("Content-Range", "bytes %s-%s/%s".formatted(range.getStart(), range.getEnd(), attach.getSize()));
 				resp.setContentLengthLong(range.getLength());
-
+				IO.toOutputStream(downloadStream, resp.getOutputStream(), range.getStart(), range.getEnd());
-				@Cleanup RandomAccessFile raf = new RandomAccessFile(file, "r");
+				resp.flushBuffer();
-				raf.seek(range.getStart());
-				IO.toOutputStream(resp.getOutputStream(), raf, range.getStart(), range.getLength());
 			}
 		} catch (Exception e) {
 			log.error("download error", e);

src/main/java/com/imyeyu/api/modules/common/entity/Attachment.java

@@ -1,7 +1,9 @@
 package com.imyeyu.api.modules.common.entity;
 
 import com.google.gson.JsonObject;
+import com.imyeyu.api.TimiServerAPI;
 import com.imyeyu.api.bean.MultilingualHandler;
+import com.imyeyu.api.modules.common.service.AttachmentService;
 import com.imyeyu.java.ref.Ref;
 import com.imyeyu.spring.annotation.table.Transient;
 import com.imyeyu.spring.entity.Entity;
@@ -48,14 +50,20 @@ public class Attachment extends Entity implements MultilingualHandler {
 		/** 镜像 */
 		MIRROR,
 
+		/** 日记 */
 		JOURNAL,
 
+		/** 日记出行 */
 		JOURNAL_TRAVEL,
 
+		/** 日记瞬间 */
 		JOURNAL_MOMENT,
 
 		/** 系统 */
-		SYSTEM
+		SYSTEM,
+
+		/** 临时文件 */
+		TEMP_FILE
 	}
 
 	protected BizType bizType;
@@ -79,11 +87,20 @@ public class Attachment extends Entity implements MultilingualHandler {
 
 	protected String md5;
 
+	protected String uploaderIp;
+
+	protected Boolean isDestroyed;
+
 	protected Long destroyAt;
 
 	@Transient
 	protected InputStream inputStream;
-	
+
+	public InputStream openInputStream() {
+		AttachmentService service = TimiServerAPI.applicationContext.getBean(AttachmentService.class);
+		return service.getInputStreamByMongoId(mongoId);
+	}
+
 	public void setAttachTypeValue(Enum<?> attachType) {
 		this.attachType = attachType.toString();
 	}

src/main/java/com/imyeyu/api/modules/common/mapper/AttachmentMapper.java

@@ -3,6 +3,7 @@ package com.imyeyu.api.modules.common.mapper;
 import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.spring.bean.Page;
 import com.imyeyu.spring.mapper.BaseMapper;
+import com.imyeyu.spring.mapper.RawMapper;
 import org.apache.ibatis.annotations.Select;
 
 import java.util.List;
@@ -11,10 +12,10 @@ import java.util.List;
  * @author 夜雨
  * @since 2023-08-15 10:22
  */
-public interface AttachmentMapper extends BaseMapper<Attachment, Long> {
+public interface AttachmentMapper extends BaseMapper<Attachment, Long>, RawMapper<Attachment, Long> {
 
 	/** 有效条件，非删除和销毁 */
-	String VALID = NOT_DELETE + " AND destroy_at IS NULL";
+	String VALID = NOT_DELETE + " AND (`destroy_at` IS NULL OR " + UNIX_TIME + " < `destroy_at`)";
 
 	@Select("SELECT * FROM attachment WHERE biz_type = #{bizType} AND biz_id = #{bizId} " + VALID + LIMIT_1)
 	Attachment selectByBizId(Attachment.BizType bizType, long bizId);
@@ -25,9 +26,12 @@ public interface AttachmentMapper extends BaseMapper<Attachment, Long> {
 	@Select("SELECT * FROM attachment WHERE biz_type = #{bizType} AND biz_id = #{bizId} AND attach_type = #{attachType} " + VALID + LIMIT_1)
 	Attachment selectByAttachType(Attachment.BizType bizType, long bizId, Enum<?> attachType);
 
-	List<Attachment> listByBizId(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypes, Page page);
+	List<Attachment> listByBizId(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypes, Page<Attachment> page);
 
 	long countByBizId(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypes);
 
 	List<Attachment> listByMd5s(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypes, List<String> md5s);
+
+	@Select("SELECT * FROM attachment WHERE `is_destroyed` = FALSE AND `destroy_at` < " + UNIX_TIME)
+	List<Attachment> selectNeedDestroy();
 }

src/main/java/com/imyeyu/api/modules/common/service/AttachmentService.java

@@ -56,7 +56,9 @@ public interface AttachmentService extends BaseService<Attachment, Long> {
 	 */
 	long countByBizId(Attachment.BizType bizType, Long bizId, Enum<?> ...attachTypes);
 
-	List<Attachment> listByMd5s(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypeList, List<String> md5s) throws TimiException;
+	List<Attachment> listByMd5s(Attachment.BizType bizType, Long bizId, List<Enum<?>> attachTypeList, List<String> md5s);
 
 	void deleteByBizId(Attachment.BizType bizType, long bizId, Enum<?> ...attachTypes);
+
+	List<Attachment> listNeedDestroy();
 }

src/main/java/com/imyeyu/api/modules/common/service/TempFileService.java

@@ -1,12 +1,8 @@
 package com.imyeyu.api.modules.common.service;
 
-import com.imyeyu.api.modules.common.bean.TempFileMetaData;
 import com.imyeyu.api.modules.common.vo.TempFileResponse;
-import com.imyeyu.java.bean.timi.TimiException;
 import org.springframework.web.multipart.MultipartFile;
 
-import java.io.File;
-import java.io.InputStream;
 import java.util.List;
 
 /**
@@ -15,11 +11,5 @@ import java.util.List;
  */
 public interface TempFileService {
 
-	List<TempFileResponse> store(List<MultipartFile> files, Long ttl) throws TimiException;
+	List<TempFileResponse> store(List<MultipartFile> files, Long ttl);
-
-	File get(String id) throws TimiException;
-
-	InputStream getInputStream(String id) throws TimiException;
-
-	TempFileMetaData metadata(String id) throws TimiException;
 }

src/main/java/com/imyeyu/api/modules/common/service/implement/AttachmentServiceImplement.java

@@ -15,6 +15,7 @@ import com.imyeyu.java.TimiJava;
 import com.imyeyu.java.bean.timi.TimiCode;
 import com.imyeyu.java.bean.timi.TimiException;
 import com.imyeyu.network.Network;
+import com.imyeyu.spring.TimiSpring;
 import com.imyeyu.spring.mapper.BaseMapper;
 import com.imyeyu.spring.service.AbstractEntityService;
 import com.imyeyu.utils.Time;
@@ -67,13 +68,11 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 	@Override
 	public void create(Attachment attachment) {
 		TimiException.required(attachment.getBizType(), "not found attachment.bizType");
-		TimiException.required(attachment.getBizId(), "not found attachment.bizId");
 		TimiException.required(attachment.getName(), "not found attachment.name");
 		String mongoId = null;
 		try {
 			InputStream is = attachment.getInputStream();
 			TimiException.required(is, "not found attachment.inputStream");
-			TimiException.requiredTrue(is.available() != 0, "empty attachment.inputStream");
 
 			StringBuilder mongoName = new StringBuilder(attachment.getBizType().toString());
 			if (TimiJava.isNotEmpty(attachment.getAttachType())) {
@@ -87,6 +86,8 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 			attachment.setSize(gridFSFile.getLength());
 			attachment.setMd5(IO.md5(gridFSBucket.openDownloadStream(gridFSFile.getObjectId())));
 			attachment.setMimeType(new Tika().detect(gridFSBucket.openDownloadStream(gridFSFile.getObjectId())));
+			attachment.setUploaderIp(TimiSpring.getRequestIP());
+			attachment.setIsDestroyed(false);
 			if (attachment.getMimeType().startsWith("image")) {
 				BufferedImage image = ImageIO.read(gridFSBucket.openDownloadStream(gridFSFile.getObjectId()));
 				attachment.setMetadata(TimiJava.defaultIfNull(attachment.getMetadata(), new JsonObject()));
@@ -108,14 +109,17 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 	@Override
 	public void destroy(Long id) {
 		try {
-			Attachment attachment = get(id);
+			Attachment attach = mapper.selectRaw(id);
-			gridFsTemplate.delete(Query.query(Criteria.where("_id").is(attachment.getMongoId())));
+			GridFSFile file = readByMongoId(attach.getMongoId());
-
+			if (file != null) {
-			if (!attachment.isDeleted()) {
+				gridFsTemplate.delete(Query.query(Criteria.where("_id").is(attach.getMongoId())));
-				attachment.setDeletedAt(Time.now());
 			}
-			attachment.setDestroyAt(Time.now());
+			if (!attach.isDeleted()) {
-			mapper.update(attachment);
+				attach.setDeletedAt(Time.now());
+			}
+			attach.setIsDestroyed(true);
+			attach.setDestroyAt(Time.now());
+			mapper.update(attach);
 		} catch (Exception e) {
 			log.error("delete mongo file error", e);
 			throw new TimiException(TimiCode.ERROR).msgKey("TODO delete mongo file error");
@@ -131,15 +135,13 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 			create(attachment);
 
 			// 生成缩略图
-			InputStream mimeStream = getInputStreamByMongoId(attachment.getMongoId());
+			InputStream mimeStream = attachment.openInputStream();
 			String mimeType = new Tika().detect(mimeStream);
 
-			InputStream sourceStream = getInputStreamByMongoId(attachment.getMongoId());
+			InputStream sourceStream = attachment.openInputStream();
 			ByteArrayOutputStream thumbStream = new ByteArrayOutputStream();
 			switch (mimeType) {
-				case "image/png", "image/bmp", "image/jpeg" -> {
+				case "image/png", "image/bmp", "image/jpeg" -> Thumbnails.of(sourceStream).width(256).keepAspectRatio(true).toOutputStream(thumbStream);
-					Thumbnails.of(sourceStream).width(256).keepAspectRatio(true).toOutputStream(thumbStream);
-				}
 				case "video/mp4", "video/quicktime" -> {
 					log.info("capturing thumbnail: {}", attachment.getName());
 					long start = Time.now();
@@ -201,9 +203,9 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 
 	@Override
 	public GridFSFile readByMongoId(String mongoId) {
-		Attachment view = mapper.selectByMongoId(mongoId);
+		Attachment attach = mapper.selectByMongoId(mongoId);
-		TimiException.required(view, "not found attachment: %s".formatted(mongoId));
+		TimiException.required(attach, "not found attachment: %s".formatted(mongoId));
-		return gridFsTemplate.findOne(new Query(Criteria.where("_id").is(view.getMongoId())));
+		return gridFsTemplate.findOne(new Query(Criteria.where("_id").is(attach.getMongoId())));
 	}
 
 	@Override
@@ -214,7 +216,7 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 	@Override
 	public byte[] readAllByMongoId(String mongoId) {
 		try {
-			return IO.toBytes(getInputStreamByMongoId(mongoId));
+			return IO.toBytes(getByMongoId(mongoId).openInputStream());
 		} catch (IOException e) {
 			throw new TimiException(TimiCode.ERROR, "TODO 读取失败");
 		}
@@ -249,4 +251,9 @@ public class AttachmentServiceImplement extends AbstractEntityService<Attachment
 			}
 		}
 	}
+
+	@Override
+	public List<Attachment> listNeedDestroy() {
+		return mapper.selectNeedDestroy();
+	}
 }

src/main/java/com/imyeyu/api/modules/common/service/implement/TempFileServiceImplement.java

@@ -1,38 +1,27 @@
 package com.imyeyu.api.modules.common.service.implement;
 
+import com.google.gson.Gson;
 import com.imyeyu.api.modules.common.bean.SettingKey;
-import com.imyeyu.api.modules.common.bean.TempFileMetaData;
+import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.api.modules.common.service.AttachmentService;
 import com.imyeyu.api.modules.common.service.SettingService;
 import com.imyeyu.api.modules.common.service.TempFileService;
 import com.imyeyu.api.modules.common.vo.TempFileResponse;
-import com.imyeyu.io.IO;
 import com.imyeyu.io.IOSize;
 import com.imyeyu.java.TimiJava;
 import com.imyeyu.java.bean.timi.TimiCode;
 import com.imyeyu.java.bean.timi.TimiException;
-import com.imyeyu.network.Network;
 import com.imyeyu.spring.TimiSpring;
+import com.imyeyu.spring.bean.Page;
 import com.imyeyu.utils.Time;
-import jakarta.annotation.PostConstruct;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * @author 夜雨
@@ -43,61 +32,58 @@ import java.util.concurrent.ConcurrentHashMap;
 @RequiredArgsConstructor
 public class TempFileServiceImplement implements TempFileService {
 
-	private static final Long DEFAULT_TTL = Time.H * 6;
+	private final Gson gson;
-	private static final Long MAX_TTL = Time.D * 3;
-	private static final Long LIMIT = IOSize.GB * 10;
 
 	private final SettingService settingService;
 	private final AttachmentService attachmentService;
 
-	private Path storagePath;
-
-	private final Map<String, TempFileMetaData> metadataMap = new ConcurrentHashMap<>();
-	private final Map<String, Long> usageMap = new ConcurrentHashMap<>();
-
-	@PostConstruct
-	public void init() throws IOException {
-		storagePath = Paths.get(settingService.getAsString(SettingKey.TEMP_FILE_PATH));
-		IO.destroy(storagePath.toFile());
-		Files.createDirectories(storagePath);
-	}
-
 	public List<TempFileResponse> store(List<MultipartFile> files, Long ttl) throws TimiException {
-		ttl = TimiJava.defaultIfNull(ttl, DEFAULT_TTL);
+		String ttlMinStr = settingService.getAsString(SettingKey.TEMP_FILE_TTL_MIN);
-		TimiException.requiredTrue(0 < ttl && ttl <= MAX_TTL, "ttl must be between 1ms and 3 days(259200000ms)");
+		String ttlMaxStr = settingService.getAsString(SettingKey.TEMP_FILE_TTL_MAX);
+		String limitStr = settingService.getAsString(SettingKey.TEMP_FILE_LIMIT);
+
+		long minTTL = Time.parseToMS(ttlMinStr);
+		long maxTTL = Time.parseToMS(ttlMaxStr);
+		long defaultTTL = Time.parseToMS(settingService.getAsString(SettingKey.TEMP_FILE_TTL_DEFAULT));
+		long limit = IOSize.parse(limitStr);
+		long residueTime = Time.parseToMS(settingService.getAsString(SettingKey.TEMP_FILE_RESIDUE_TIME));
+
+		ttl = TimiJava.defaultIfNull(ttl, defaultTTL);
+		TimiException.requiredTrue(minTTL < ttl && ttl <= maxTTL, String.format("ttl must be between %s and %s", ttlMinStr, ttlMaxStr));
 
 		long newFileSize = files.stream().mapToLong(MultipartFile::getSize).sum();
-		long currentUsage = usageMap.getOrDefault(TimiSpring.getRequestIP(), 0L);
+		{
-		TimiException.requiredTrue(currentUsage + newFileSize < LIMIT, "out of storage limit(10 GB)");
+			// 缓存池大小限制
-
+			Page<Attachment> page = new Page<>();
+			page.setIndex(0);
+			page.setSize(Long.MAX_VALUE);
+			{
+				Attachment example = new Attachment();
+				example.setUploaderIp(TimiSpring.getRequestIP());
+				page.setEqualsExample(example);
+			}
+			long currentUsage = attachmentService.page(page).getList().stream().mapToLong(Attachment::getSize).sum();
+			TimiException.requiredTrue(currentUsage + newFileSize < limit, "out of storage limit(%s)".formatted(limitStr));
+		}
 		try {
 			List<TempFileResponse> result = new ArrayList<>();
+
+			long deletedAt = Time.now() + ttl;
+			long destroyAt = deletedAt + residueTime;
 			for (int i = 0; i < files.size(); i++) {
 				MultipartFile file = files.get(i);
 
-				String fileId = UUID.randomUUID().toString();
+				Attachment attach = new Attachment();
-				String fileName = fileId;
+				attach.setBizType(Attachment.BizType.TEMP_FILE);
-				if (TimiJava.isNotEmpty(file.getOriginalFilename())) {
+				attach.setName(file.getOriginalFilename());
-					fileName = fileId + "." + Network.uriFileExtension(file.getOriginalFilename());
+				attach.setDeletedAt(deletedAt);
-				}
+				attach.setDestroyAt(destroyAt);
-				Path filePath = storagePath.resolve(fileName);
+				attach.setInputStream(file.getInputStream());
-				Files.copy(file.getInputStream(), filePath);
+				attachmentService.create(attach);
-
-				// 创建元数据
-				TempFileMetaData metadata = new TempFileMetaData();
-				metadata.setId(fileId);
-				metadata.setPath(filePath);
-				metadata.setName(fileName);
-				metadata.setOriginalName(file.getOriginalFilename());
-				metadata.setLastAccessAt(Time.now());
-				metadata.setTtl(ttl);
-				metadataMap.put(metadata.getId(), metadata);
 
 				TempFileResponse resp = new TempFileResponse();
-				resp.setId(metadata.getId());
+				resp.setId(attach.getMongoId());
-				resp.setExpireAt(metadata.getLastAccessAt() + ttl);
+				resp.setExpireAt(deletedAt);
-
-				usageMap.put(TimiSpring.getRequestIP(), currentUsage + newFileSize);
 				result.add(resp);
 			}
 			return result;
@@ -107,42 +93,20 @@ public class TempFileServiceImplement implements TempFileService {
 		}
 	}
 
-	@Override
-	public File get(String id) throws TimiException {
-		TempFileMetaData metaData = metadataMap.get(id);
-		TimiException.required(metaData, "not found temp file");
-		metaData.setLastAccessAt(Time.now());
-		return metaData.getPath().toFile();
-	}
-
-	@Override
-	public InputStream getInputStream(String id) throws TimiException {
-		try {
-			return IO.getInputStream(get(id));
-		} catch (FileNotFoundException e) {
-			throw new TimiException(TimiCode.RESULT_NULL, "not found temp file");
-		}
-	}
-
-	@Override
-	public TempFileMetaData metadata(String id) throws TimiException {
-		return metadataMap.get(id);
-	}
-
 	@Scheduled(fixedRate = 3600000)
 	public void cleanup() {
-		List<String> expiredIds = metadataMap.values()
+//		List<String> expiredIds = metadataMap.values()
-		                                     .stream()
+//		                                     .stream()
-		                                     .filter(metadata -> metadata.getLastAccessAt() + metadata.getTtl() < Time.now())
+//		                                     .filter(metadata -> metadata.getLastAccessAt() + metadata.getTtl() < Time.now())
-		                                     .map(TempFileMetaData::getId)
+//		                                     .map(TempFileMetaData::getId)
-		                                     .toList();
+//		                                     .toList();
-		for (int i = 0; i < expiredIds.size(); i++) {
+//		for (int i = 0; i < expiredIds.size(); i++) {
-			TempFileMetaData removed = metadataMap.remove(expiredIds.get(i));
+//			TempFileMetaData removed = metadataMap.remove(expiredIds.get(i));
-			if (TimiJava.isNotEmpty(removed)) {
+//			if (TimiJava.isNotEmpty(removed)) {
-				File file = removed.getPath().toFile();
+//				File file = removed.getPath().toFile();
-				IO.destroy(file);
+//				IO.destroy(file);
-				usageMap.computeIfPresent(TimiSpring.getRequestIP(), (ip, usage) -> usage - file.length());
+//				usageMap.computeIfPresent(TimiSpring.getRequestIP(), (ip, usage) -> usage - file.length());
-			}
+//			}
-		}
+//		}
 	}
 }

src/main/java/com/imyeyu/api/modules/common/task/AttachmentClearTask.java

@@ -0,0 +1,49 @@
+package com.imyeyu.api.modules.common.task;
+
+import com.imyeyu.api.modules.common.entity.Attachment;
+import com.imyeyu.api.modules.common.service.AttachmentService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.Scheduled;
+
+import java.util.List;
+
+/**
+ * 附件清除定时任务。每天凌晨 1 点执行，清除已过期但未销毁的附件
+ *
+ * @author 夜雨
+ * @since 2026-01-05 12:37
+ */
+@Slf4j
+@Configuration
+@EnableScheduling
+@RequiredArgsConstructor
+public class AttachmentClearTask {
+
+	private final AttachmentService attachmentService;
+
+	@Scheduled(cron = "0 0 1 * * ?")
+	public void run() {
+		log.info("start clear expired attachments");
+		try {
+			List<Attachment> needDestroyList = attachmentService.listNeedDestroy();
+			if (needDestroyList.isEmpty()) {
+				log.info("nothing attachment need clear");
+				return;
+			}
+			for (Attachment attach : needDestroyList) {
+				try {
+					attachmentService.destroy(attach.getId());
+					log.info("clear attachment success: id[{}]", attach.getId());
+				} catch (Exception e) {
+					log.error("clear attachment error: id[{}]", attach.getId(), e);
+				}
+			}
+			log.info("end clear expired attachments");
+		} catch (Exception e) {
+			log.error("attachment clear task error", e);
+		}
+	}
+}

src/main/java/com/imyeyu/api/modules/journal/service/implement/JournalServiceImplement.java

@@ -4,7 +4,6 @@ import com.google.gson.Gson;
 import com.imyeyu.api.config.dbsource.TimiServerDBConfig;
 import com.imyeyu.api.modules.common.bean.MediaAttach;
 import com.imyeyu.api.modules.common.bean.Metadata;
-import com.imyeyu.api.modules.common.bean.TempFileMetaData;
 import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.api.modules.common.service.AttachmentService;
 import com.imyeyu.api.modules.common.service.SettingService;
@@ -15,7 +14,6 @@ import com.imyeyu.api.modules.journal.service.JournalService;
 import com.imyeyu.api.modules.journal.vo.journal.ArchiveRequest;
 import com.imyeyu.api.modules.journal.vo.journal.JournalRequest;
 import com.imyeyu.api.modules.journal.vo.journal.UpdateRequest;
-import com.imyeyu.io.IO;
 import com.imyeyu.java.TimiJava;
 import com.imyeyu.java.bean.timi.TimiCode;
 import com.imyeyu.java.bean.timi.TimiException;
@@ -27,7 +25,6 @@ import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -69,14 +66,13 @@ public class JournalServiceImplement extends AbstractEntityService<Journal, Long
 				return;
 			}
 			for (int i = 0; i < tempFileIds.length; i++) {
-				TempFileMetaData metadata = tempFileService.metadata(tempFileIds[i]);
+				Attachment tempFileAttach = attachmentService.getByMongoId(tempFileIds[i]);
-				File file = tempFileService.get(tempFileIds[i]);
 
 				Attachment sourceAttach = new Attachment();
-				sourceAttach.setName(metadata.getOriginalName());
+				sourceAttach.setName(tempFileAttach.getName());
 				sourceAttach.setBizType(Attachment.BizType.JOURNAL);
 				sourceAttach.setBizId(journal.getId());
-				sourceAttach.setInputStream(IO.getInputStream(file));
+				sourceAttach.setInputStream(tempFileAttach.openInputStream());
 				attachmentService.createMedia(sourceAttach);
 			}
 		} catch (Exception e) {
@@ -105,13 +101,13 @@ public class JournalServiceImplement extends AbstractEntityService<Journal, Long
 		}
 		// 新增
 		for (String tempFileId : TimiJava.defaultIfNull(request.getTempFileIds(), new String[0])) {
-			TempFileMetaData metadata = tempFileService.metadata(tempFileId);
+			Attachment tempFileAttach = attachmentService.getByMongoId(tempFileId);
 
 			Attachment sourceAttach = new Attachment();
-			sourceAttach.setName(metadata.getOriginalName());
+			sourceAttach.setName(tempFileAttach.getName());
 			sourceAttach.setBizType(Attachment.BizType.JOURNAL);
 			sourceAttach.setBizId(journal.getId());
-			sourceAttach.setInputStream(tempFileService.getInputStream(tempFileId));
+			sourceAttach.setInputStream(tempFileAttach.openInputStream());
 			attachmentService.createMedia(sourceAttach);
 		}
 	}
@@ -148,16 +144,15 @@ public class JournalServiceImplement extends AbstractEntityService<Journal, Long
 		try {
 			List<Attachment> thumbResult = new ArrayList<>();
 			for (int i = 0; i < tempFileIds.length; i++) {
-				TempFileMetaData metadata = tempFileService.metadata(tempFileIds[i]);
+				Attachment tempFileAttach = attachmentService.getByMongoId(tempFileIds[i]);
-				File file = tempFileService.get(tempFileIds[i]);
 
 				Attachment sourceAttach = new Attachment();
-				sourceAttach.setName(metadata.getOriginalName());
+				sourceAttach.setName(tempFileAttach.getName());
 				sourceAttach.setBizType(Attachment.BizType.JOURNAL_MOMENT);
 				sourceAttach.setBizId(0L);
 				sourceAttach.setAttachTypeValue(MediaAttach.Type.SOURCE);
-				sourceAttach.setSize(file.length());
+				sourceAttach.setSize(tempFileAttach.getSize());
-				sourceAttach.setInputStream(IO.getInputStream(file));
+				sourceAttach.setInputStream(tempFileAttach.openInputStream());
 				thumbResult.add(attachmentService.createMedia(sourceAttach));
 			}
 			return thumbResult;

src/main/java/com/imyeyu/api/modules/journal/service/implement/TravelLocationServiceImplement.java

@@ -2,10 +2,8 @@ package com.imyeyu.api.modules.journal.service.implement;
 
 import com.imyeyu.api.config.dbsource.TimiServerDBConfig;
 import com.imyeyu.api.modules.common.bean.MediaAttach;
-import com.imyeyu.api.modules.common.bean.TempFileMetaData;
 import com.imyeyu.api.modules.common.entity.Attachment;
 import com.imyeyu.api.modules.common.service.AttachmentService;
-import com.imyeyu.api.modules.common.service.TempFileService;
 import com.imyeyu.api.modules.journal.entity.TravelLocation;
 import com.imyeyu.api.modules.journal.mapper.TravelLocationMapper;
 import com.imyeyu.api.modules.journal.service.TravelLocationService;
@@ -36,7 +34,6 @@ import java.util.stream.Collectors;
 public class TravelLocationServiceImplement extends AbstractEntityService<TravelLocation, Long> implements TravelLocationService {
 
 	private final TravelService travelService;
-	private final TempFileService tempFileService;
 	private final AttachmentService attachmentService;
 
 	private final TravelLocationMapper mapper;
@@ -51,13 +48,13 @@ public class TravelLocationServiceImplement extends AbstractEntityService<Travel
 	public void create(TravelLocation travelLocation) {
 		super.create(travelLocation);
 		for (String tempFileId : travelLocation.getTempFileIds()) {
-			TempFileMetaData metadata = tempFileService.metadata(tempFileId);
+			Attachment tempFileAttach = attachmentService.getByMongoId(tempFileId);
 
 			Attachment attach = new Attachment();
-			attach.setName(metadata.getOriginalName());
+			attach.setName(tempFileAttach.getName());
 			attach.setBizType(Attachment.BizType.JOURNAL_TRAVEL);
 			attach.setBizId(travelLocation.getId());
-			attach.setInputStream(tempFileService.getInputStream(tempFileId));
+			attach.setInputStream(tempFileAttach.openInputStream());
 			attachmentService.createMedia(attach);
 		}
 		// 更新操作时间以保证排序
@@ -83,13 +80,13 @@ public class TravelLocationServiceImplement extends AbstractEntityService<Travel
 		}
 		// 新增
 		for (String tempFileId : TimiJava.defaultIfNull(travelLocation.getTempFileIds(), new String[0])) {
-			TempFileMetaData metadata = tempFileService.metadata(tempFileId);
+			Attachment tempFileAttach = attachmentService.getByMongoId(tempFileId);
 
 			Attachment attach = new Attachment();
-			attach.setName(metadata.getOriginalName());
+			attach.setName(tempFileAttach.getName());
 			attach.setBizType(Attachment.BizType.JOURNAL_TRAVEL);
 			attach.setBizId(travelLocation.getId());
-			attach.setInputStream(tempFileService.getInputStream(tempFileId));
+			attach.setInputStream(tempFileAttach.openInputStream());
 			attachmentService.createMedia(attach);
 		}
 		// 更新操作时间以保证排序

src/main/resources/mapper/git/ReleaseMapper.xml

@@ -31,7 +31,7 @@
 	<resultMap id="listByRepositoryIdResult" type="com.imyeyu.api.modules.git.vo.release.ReleaseView" autoMapping="true">
 		<id property="id" column="id" />
 		<!-- 关联附件 -->
-		<collection property="attachmentList" ofType="com.imyeyu.api.modules.common.vo.attachment.AttachmentView">
+		<collection property="attachmentList" ofType="com.imyeyu.api.modules.common.entity.Attachment">
 			<id property="id" column="attachmentId" />
 			<result property="bizType" column="biz_type" />
 			<result property="bizId" column="biz_id" />