修复暂停下载后不能恢复和更改时间无效的问题

backend/services/download-executor.js

@@ -33,6 +33,10 @@ class DownloadExecutor {
         // 检查是否应该暂停
         if (this.shouldPause(task.id)) {
           logger.info('任务已暂停，停止下载:', task.id);
+          // 确保任务状态为暂停
+          task.status = 'paused';
+          await this.taskManager.saveTasks();
+          this.progressManager.notifyProgressUpdate(task.id, task);
           break;
         }
 
@@ -75,10 +79,13 @@ class DownloadExecutor {
           // 验证文件完整性
           const integrity = await this.fileManager.checkFileIntegrity(filePath);
           if (integrity.valid) {
-            task.completed_files++;
-            task.progress = Math.round((task.completed_files / task.total_files) * 100);
-            await this.taskManager.saveTasks();
-            this.progressManager.notifyProgressUpdate(task.id, task);
+            // 只有在非恢复模式下才增加计数，避免重复计算
+            if (!task.isResuming) {
+              task.completed_files++;
+              task.progress = Math.round((task.completed_files / task.total_files) * 100);
+              await this.taskManager.saveTasks();
+              this.progressManager.notifyProgressUpdate(task.id, task);
+            }
             results.push({ success: true, file: fileName, skipped: true });
             continue;
           } else {
@@ -115,6 +122,12 @@ class DownloadExecutor {
         }
       }
 
+      // 检查任务是否被暂停，如果是则不要更新最终状态
+      if (task.status === 'paused') {
+        logger.info('任务已暂停，跳过最终状态更新:', task.id);
+        return;
+      }
+
       // 保存作品信息
       const infoPath = path.join(artworkDir, 'artwork_info.json');
       await fs.writeJson(infoPath, artwork, { spaces: 2 });
@@ -527,32 +540,123 @@ class DownloadExecutor {
   async resumeTask(taskId) {
     const task = this.taskManager.getTask(taskId);
     if (!task) {
+      logger.error('恢复任务失败：任务不存在', { taskId });
       throw new Error('任务不存在');
     }
 
+    // logger.info('下载执行器检查任务状态', { 
+    //   taskId, 
+    //   currentStatus: task.status,
+    //   type: task.type 
+    // });
+
     if (task.status !== 'paused') {
+      logger.error('恢复任务失败：任务状态不是暂停状态', { 
+        taskId, 
+        currentStatus: task.status 
+      });
       throw new Error('任务状态不是暂停状态');
     }
 
     // 根据任务类型重新开始下载
     if (task.type === 'artwork') {
+      // logger.info('开始恢复单个作品下载任务', { taskId, artwork_id: task.artwork_id });
+      
       // 重新获取作品信息和图片URL
-      const artworkResult = await this.downloadService.artworkService.getArtwork(task.artwork_id);
+      const artworkResult = await this.downloadService.artworkService.getArtworkDetail(task.artwork_id);
       if (!artworkResult.success) {
+        logger.error('获取作品信息失败', { taskId, error: artworkResult.error });
         throw new Error(`获取作品信息失败: ${artworkResult.error}`);
       }
 
-      const imagesResult = await this.downloadService.artworkService.getArtworkImages(task.artwork_id, 'original');
+      let imagesResult = await this.downloadService.artworkService.getArtworkImages(task.artwork_id, 'original');
       if (!imagesResult.success) {
+        logger.error('获取图片URL失败', { taskId, error: imagesResult.error });
         throw new Error(`获取图片URL失败: ${imagesResult.error}`);
       }
 
       const artwork = artworkResult.data;
-      const images = imagesResult.data.images;
-      const artworkDir = await this.fileManager.getArtworkDirectory(artwork);
+      let images = imagesResult.data.images;
       
-      // 重新开始下载
-      this.executeArtworkDownload(task, images, 'original', artworkDir, artwork);
+      // 创建作品目录（使用与DownloadService相同的逻辑）
+      const artistName = this.fileManager.createSafeDirectoryName(artwork.user.name || 'Unknown Artist');
+      const artworkTitle = this.fileManager.createSafeDirectoryName(artwork.title || 'Untitled');
+      const downloadPath = await this.fileManager.getDownloadPath();
+      const artistDir = path.join(downloadPath, artistName);
+      const artworkDirName = `${task.artwork_id}_${artworkTitle}`;
+      const artworkDir = path.join(artistDir, artworkDirName);
+
+      // logger.info('准备恢复下载，重置任务状态', { 
+      //   taskId, 
+      //   originalTotalFiles: task.total_files,
+      //   newImageCount: images.length,
+      //   artworkDir 
+      // });
+
+      // 如果新获取的图片数量与原始数量不同，记录警告但使用原始数量
+      if (images.length !== task.total_files) {
+        logger.warn('恢复时图片数量发生变化', { 
+          taskId, 
+          originalTotalFiles: task.total_files,
+          newImageCount: images.length 
+        });
+        // 使用原始数量，避免任务状态混乱
+        images = images.slice(0, task.total_files);
+      }
+
+      // 检查哪些文件已经完成下载
+      const completedFiles = [];
+      const incompleteFiles = [];
+      
+      for (let index = 0; index < images.length; index++) {
+        const imageObj = images[index];
+        let imageUrl = imageObj.original || imageObj.large || imageObj.medium;
+        const fileName = `image_${index + 1}.${this.getFileExtension(imageUrl)}`;
+        const filePath = path.join(artworkDir, fileName);
+        
+        // 检查文件是否存在且完整
+        if (await this.fileManager.fileExists(filePath)) {
+          const integrity = await this.fileManager.checkFileIntegrity(filePath);
+          if (integrity.valid) {
+            completedFiles.push({ index, fileName, filePath });
+          } else {
+            incompleteFiles.push({ index, fileName, filePath });
+          }
+        } else {
+          incompleteFiles.push({ index, fileName, filePath });
+        }
+      }
+
+      // logger.info('文件检查完成', { 
+      //   taskId, 
+      //   completedCount: completedFiles.length,
+      //   incompleteCount: incompleteFiles.length 
+      // });
+
+      // 只删除未完成的文件
+      for (const fileInfo of incompleteFiles) {
+        try {
+          await this.fileManager.safeDeleteFile(fileInfo.filePath);
+          logger.debug(`删除未完成文件: ${fileInfo.fileName}`);
+        } catch (error) {
+          // 忽略删除错误，文件可能不存在
+          logger.debug(`删除文件失败（可能不存在）: ${fileInfo.filePath}`);
+        }
+      }
+
+      // 重置任务状态，但保留已完成的文件计数
+      task.completed_files = completedFiles.length;
+      task.failed_files = 0;
+      task.progress = Math.round((task.completed_files / task.total_files) * 100);
+      task.status = 'downloading';
+      // 添加恢复标志，避免重复计算已完成的文件
+      task.isResuming = true;
+      await this.taskManager.saveTasks();
+
+      // logger.info('开始执行作品下载', { taskId });
+
+      // 重新开始下载 - 等待异步执行开始
+      await this.executeArtworkDownload(task, images, 'original', artworkDir, artwork);
     } else if (task.type === 'batch' || task.type === 'artist') {
       // 批量下载和作者下载的恢复逻辑
       // 这里需要根据具体实现来恢复
@@ -560,6 +664,7 @@ class DownloadExecutor {
       // TODO: 实现批量下载的恢复逻辑
     }
 
+    logger.info('任务恢复执行完成', { taskId });
     return { success: true };
   }
 

backend/services/download.js

@@ -224,32 +224,67 @@ class DownloadService {
       return { success: false, error: '任务不存在' };
     }
 
+    // 只允许暂停正在下载的任务
+    if (task.status !== 'downloading') {
+      return { success: false, error: '只能暂停正在下载的任务' };
+    }
+
     await this.taskManager.updateTask(taskId, { status: 'paused' });
-    this.progressManager.notifyProgressUpdate(taskId, task);
-    return { success: true };
+    
+    // 获取更新后的任务
+    const updatedTask = this.taskManager.getTask(taskId);
+    this.progressManager.notifyProgressUpdate(taskId, updatedTask);
+    
+    return { success: true, data: updatedTask };
   }
 
   async resumeTask(taskId) {
     const task = this.taskManager.getTask(taskId);
     if (!task) {
+      logger.error('恢复任务失败：任务不存在', { taskId });
       return { success: false, error: '任务不存在' };
     }
 
+    // logger.info('尝试恢复任务', { 
+    //   taskId, 
+    //   currentStatus: task.status, 
+    //   type: task.type,
+    //   artwork_id: task.artwork_id 
+    // });
+
+    // 只允许恢复暂停的任务
     if (task.status !== 'paused') {
-      return { success: false, error: '任务状态不是暂停状态' };
+      logger.warn('恢复任务失败：任务状态不是暂停状态', { 
+        taskId, 
+        currentStatus: task.status 
+      });
+      return { success: false, error: '只能恢复暂停的任务' };
     }
 
-    // 更新任务状态为下载中
-    await this.taskManager.updateTask(taskId, { status: 'downloading' });
-    
-    // 通知进度更新
-    const updatedTask = this.taskManager.getTask(taskId);
-    this.progressManager.notifyProgressUpdate(taskId, updatedTask);
-
     // 重新开始下载执行
-    this.downloadExecutor.resumeTask(taskId);
+    try {
+      logger.info('开始恢复任务执行', { taskId });
+      await this.downloadExecutor.resumeTask(taskId);
       
-    return { success: true, data: updatedTask };
+      // 获取更新后的任务状态
+      const updatedTask = this.taskManager.getTask(taskId);
+      this.progressManager.notifyProgressUpdate(taskId, updatedTask);
+      
+      logger.info('任务恢复成功', { 
+        taskId, 
+        newStatus: updatedTask.status 
+      });
+    } catch (error) {
+      logger.error('恢复任务执行失败', { 
+        taskId, 
+        error: error.message,
+        stack: error.stack 
+      });
+      // 如果恢复失败，保持暂停状态
+      return { success: false, error: `恢复任务失败: ${error.message}` };
+    }
+
+    return { success: true, data: this.taskManager.getTask(taskId) };
   }
 
   // 代理方法 - 历史记录管理

backend/services/image-cache.js

@@ -20,13 +20,16 @@ class ImageCacheService {
     if (isPkg) {
       // 在打包环境中，使用可执行文件所在目录
       this.cacheDir = path.join(process.cwd(), 'data', 'image-cache');
+      this.indexPath = path.join(process.cwd(), 'data', 'image-cache-index.json');
     } else {
       // 在开发环境中，使用项目根目录的data文件夹
       this.cacheDir = path.join(__dirname, '..', '..', 'data', 'image-cache');
+      this.indexPath = path.join(__dirname, '..', '..', 'data', 'image-cache-index.json');
     }
     
     // 确保路径是绝对路径
     this.cacheDir = path.resolve(this.cacheDir);
+    this.indexPath = path.resolve(this.indexPath);
     
     // 创建配置管理器
     this.configManager = new CacheConfigManager();
@@ -46,6 +49,9 @@ class ImageCacheService {
       allowedExtensions: ['.jpg', '.jpeg', '.png', '.gif', '.webp', '.bmp'],
     };
     
+    // 缓存索引
+    this.cacheIndex = new Map();
+    
     // 初始化配置
     this.initializeConfig();
   }
@@ -62,6 +68,12 @@ class ImageCacheService {
       // 确保缓存目录存在
       await this.ensureCacheDir();
       
+      // 加载缓存索引
+      await this.loadCacheIndex();
+      
+      // 验证并同步缓存索引
+      await this.validateAndSyncIndex();
+      
       // 启动定期清理任务
       this.startCleanupTask();
       
@@ -170,9 +182,21 @@ class ImageCacheService {
    */
   async saveToCache(url, data) {
     try {
+      const cacheKey = this.generateCacheKey(url);
       const cachePath = this.getCacheFilePath(url);
+      const filename = path.basename(cachePath);
+      
       await fs.writeFile(cachePath, data);
       
+      // 获取文件信息并添加到索引
+      const stats = await fs.stat(cachePath);
+      this.addToIndex(cacheKey, filename, stats.size, stats.mtime.getTime());
+      
+      // 异步保存索引
+      this.saveCacheIndex().catch(error => {
+        logger.error('异步保存缓存索引失败:', error);
+      });
+      
       // 检查缓存大小，如果超过限制则清理
       await this.checkCacheSize();
     } catch (error) {
@@ -256,25 +280,27 @@ class ImageCacheService {
    */
   async checkCacheSize() {
     try {
-      const files = await fs.readdir(this.cacheDir);
       let totalSize = 0;
       const fileStats = [];
 
-      // 计算总大小和收集文件信息
-      for (const file of files) {
-        const filePath = path.join(this.cacheDir, file);
+      // 使用索引计算总大小和收集文件信息
+      for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+        const filePath = path.join(this.cacheDir, fileInfo.filename);
         try {
+          // 验证文件是否实际存在
           const stats = await fs.stat(filePath);
           totalSize += stats.size;
           fileStats.push({
             path: filePath,
             size: stats.size,
-            mtime: stats.mtime
+            mtime: new Date(fileInfo.mtime),
+            cacheKey: cacheKey
           });
         } catch (error) {
-          // 如果文件不存在，记录日志但继续处理其他文件
+          // 如果文件不存在，从索引中移除
           if (error.code === 'ENOENT') {
-            logger.warn(`缓存文件不存在，跳过: ${filePath}`);
+            logger.warn(`缓存文件不存在，从索引中移除: ${filePath}`);
+            this.removeFromIndex(cacheKey);
           } else {
             logger.error(`检查缓存文件失败: ${filePath}`, error);
           }
@@ -293,6 +319,9 @@ class ImageCacheService {
             await fs.unlink(file.path);
             totalSize -= file.size;
             
+            // 从索引中移除
+            this.removeFromIndex(file.cacheKey);
+            
             if (totalSize <= this.config.maxSize * 0.8) { // 清理到80%
               break;
             }
@@ -300,12 +329,17 @@ class ImageCacheService {
             // 如果删除文件失败，记录日志但继续处理其他文件
             if (error.code === 'ENOENT') {
               logger.warn(`删除缓存文件时文件不存在: ${file.path}`);
+              // 从索引中移除
+              this.removeFromIndex(file.cacheKey);
             } else {
               logger.error(`删除缓存文件失败: ${file.path}`, error);
             }
           }
         }
         
+        // 保存更新后的索引
+        await this.saveCacheIndex();
+        
         logger.info(`缓存清理完成，当前大小: ${totalSize}`);
       }
     } catch (error) {
@@ -319,31 +353,35 @@ class ImageCacheService {
    */
   async cleanupExpiredCache() {
     try {
-      const files = await fs.readdir(this.cacheDir);
       let cleanedCount = 0;
+      const now = Date.now();
 
-      for (const file of files) {
-        const filePath = path.join(this.cacheDir, file);
+      // 使用索引检查过期文件
+      for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+        const filePath = path.join(this.cacheDir, fileInfo.filename);
         try {
           const stats = await fs.stat(filePath);
           
-          const age = Date.now() - stats.mtime.getTime();
+          const age = now - stats.mtime.getTime();
           if (age > this.config.maxAge) {
             try {
               await fs.unlink(filePath);
+              this.removeFromIndex(cacheKey);
               cleanedCount++;
             } catch (deleteError) {
               if (deleteError.code === 'ENOENT') {
                 logger.warn(`删除过期缓存文件时文件不存在: ${filePath}`);
+                this.removeFromIndex(cacheKey);
               } else {
                 logger.error(`删除过期缓存文件失败: ${filePath}`, deleteError);
               }
             }
           }
         } catch (error) {
-          // 如果文件不存在，记录日志但继续处理其他文件
+          // 如果文件不存在，从索引中移除
           if (error.code === 'ENOENT') {
-            logger.warn(`过期缓存文件不存在，跳过: ${filePath}`);
+            logger.warn(`过期缓存文件不存在，从索引中移除: ${filePath}`);
+            this.removeFromIndex(cacheKey);
           } else {
             logger.error(`检查过期缓存文件失败: ${filePath}`, error);
           }
@@ -351,6 +389,8 @@ class ImageCacheService {
       }
 
       if (cleanedCount > 0) {
+        // 保存更新后的索引
+        await this.saveCacheIndex();
         logger.info(`清理了 ${cleanedCount} 个过期缓存文件`);
       }
     } catch (error) {
@@ -375,12 +415,12 @@ class ImageCacheService {
    */
   async clearAllCache() {
     try {
-      const files = await fs.readdir(this.cacheDir);
       let deletedCount = 0;
       let errorCount = 0;
       
-      for (const file of files) {
-        const filePath = path.join(this.cacheDir, file);
+      // 使用索引清理所有文件
+      for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+        const filePath = path.join(this.cacheDir, fileInfo.filename);
         try {
           await fs.unlink(filePath);
           deletedCount++;
@@ -394,6 +434,10 @@ class ImageCacheService {
         }
       }
       
+      // 清空索引
+      this.cacheIndex.clear();
+      await this.saveCacheIndex();
+      
       if (errorCount === 0) {
         logger.info(`所有缓存已清理，共删除 ${deletedCount} 个文件`);
       } else {
@@ -411,13 +455,14 @@ class ImageCacheService {
    */
   async getCacheStats() {
     try {
-      const files = await fs.readdir(this.cacheDir);
       let totalSize = 0;
       let fileCount = 0;
       let errorCount = 0;
+      let indexSize = this.cacheIndex.size;
 
-      for (const file of files) {
-        const filePath = path.join(this.cacheDir, file);
+      // 使用索引获取统计信息
+      for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+        const filePath = path.join(this.cacheDir, fileInfo.filename);
         try {
           const stats = await fs.stat(filePath);
           totalSize += stats.size;
@@ -425,6 +470,8 @@ class ImageCacheService {
         } catch (error) {
           if (error.code === 'ENOENT') {
             logger.warn(`统计缓存时文件不存在: ${filePath}`);
+            // 从索引中移除不存在的文件
+            this.removeFromIndex(cacheKey);
           } else {
             logger.error(`获取缓存文件统计失败: ${filePath}`, error);
           }
@@ -432,6 +479,11 @@ class ImageCacheService {
         }
       }
 
+      // 如果有文件被移除，保存索引
+      if (errorCount > 0) {
+        await this.saveCacheIndex();
+      }
+
       return {
         fileCount,
         totalSize,
@@ -439,7 +491,8 @@ class ImageCacheService {
         maxAge: this.config.maxAge,
         enabled: this.config.enabled,
         config: this.config,
-        errorCount
+        errorCount,
+        indexSize
       };
     } catch (error) {
       logger.error('获取缓存统计失败:', error);
@@ -450,7 +503,8 @@ class ImageCacheService {
         maxAge: this.config.maxAge,
         enabled: this.config.enabled,
         config: this.config,
-        errorCount: 0
+        errorCount: 0,
+        indexSize: this.cacheIndex.size
       };
     }
   }
@@ -483,6 +537,123 @@ class ImageCacheService {
     this.config = { ...this.config, ...defaultConfig };
     return defaultConfig;
   }
+
+  /**
+   * 加载缓存索引
+   */
+  async loadCacheIndex() {
+    try {
+      if (await fs.access(this.indexPath).then(() => true).catch(() => false)) {
+        const indexData = await fs.readFile(this.indexPath, 'utf8');
+        const index = JSON.parse(indexData);
+        this.cacheIndex = new Map(Object.entries(index));
+        logger.info(`已加载缓存索引，包含 ${this.cacheIndex.size} 个文件记录`);
+      } else {
+        logger.info('缓存索引文件不存在，将创建新的索引');
+        this.cacheIndex = new Map();
+      }
+    } catch (error) {
+      logger.warn('加载缓存索引失败，将创建新的索引:', error.message);
+      this.cacheIndex = new Map();
+    }
+  }
+
+  /**
+   * 保存缓存索引
+   */
+  async saveCacheIndex() {
+    try {
+      const indexData = Object.fromEntries(this.cacheIndex);
+      await fs.writeFile(this.indexPath, JSON.stringify(indexData, null, 2));
+    } catch (error) {
+      logger.error('保存缓存索引失败:', error);
+    }
+  }
+
+  /**
+   * 验证并同步缓存索引
+   */
+  async validateAndSyncIndex() {
+    try {
+      const files = await fs.readdir(this.cacheDir);
+      const fileSet = new Set(files);
+      let removedCount = 0;
+      let addedCount = 0;
+
+      // 检查索引中的文件是否实际存在
+      for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+        if (!fileSet.has(fileInfo.filename)) {
+          this.cacheIndex.delete(cacheKey);
+          removedCount++;
+        }
+      }
+
+      // 检查实际文件是否在索引中
+      for (const filename of files) {
+        const filePath = path.join(this.cacheDir, filename);
+        try {
+          const stats = await fs.stat(filePath);
+          const cacheKey = this.findCacheKeyByFilename(filename);
+          
+          if (!cacheKey) {
+            // 文件存在但不在索引中，添加到索引
+            this.cacheIndex.set(filename, {
+              filename: filename,
+              size: stats.size,
+              mtime: stats.mtime.getTime(),
+              added: Date.now()
+            });
+            addedCount++;
+          }
+        } catch (error) {
+          // 文件不存在，从索引中移除
+          const cacheKey = this.findCacheKeyByFilename(filename);
+          if (cacheKey) {
+            this.cacheIndex.delete(cacheKey);
+            removedCount++;
+          }
+        }
+      }
+
+      if (removedCount > 0 || addedCount > 0) {
+        logger.info(`缓存索引同步完成: 移除 ${removedCount} 个无效记录，添加 ${addedCount} 个新记录`);
+        await this.saveCacheIndex();
+      }
+    } catch (error) {
+      logger.error('验证缓存索引失败:', error);
+    }
+  }
+
+  /**
+   * 根据文件名查找缓存键
+   */
+  findCacheKeyByFilename(filename) {
+    for (const [cacheKey, fileInfo] of this.cacheIndex.entries()) {
+      if (fileInfo.filename === filename) {
+        return cacheKey;
+      }
+    }
+    return null;
+  }
+
+  /**
+   * 添加文件到缓存索引
+   */
+  addToIndex(cacheKey, filename, size, mtime) {
+    this.cacheIndex.set(cacheKey, {
+      filename: filename,
+      size: size,
+      mtime: mtime,
+      added: Date.now()
+    });
+  }
+
+  /**
+   * 从缓存索引中移除文件
+   */
+  removeFromIndex(cacheKey) {
+    this.cacheIndex.delete(cacheKey);
+  }
 }
 
 module.exports = ImageCacheService; 

backend/start.js

@@ -86,12 +86,21 @@ process.on('SIGTERM', async () => {
 // 处理未捕获的异常
 process.on('uncaughtException', error => {
   logger.error('❌ 未捕获的异常', error);
+  logger.error('❌ 异常堆栈:', error.stack);
   process.exit(1);
 });
 
 process.on('unhandledRejection', (reason, promise) => {
-  logger.error('❌ 未处理的 Promise 拒绝', reason);
-  process.exit(1);
+  logger.error('❌ 未处理的 Promise 拒绝');
+  logger.error('❌ 拒绝原因:', reason);
+  if (reason instanceof Error) {
+    logger.error('❌ 错误堆栈:', reason.stack);
+  }
+  logger.error('❌ Promise:', promise);
+  
+  // 不要立即退出进程，而是记录错误并继续运行
+  // 这样可以避免因为自动恢复任务的小错误而停止整个服务
+  logger.warn('⚠️ 继续运行服务器，但建议检查上述错误');
 });
 
 // 启动服务器

ui/src/components/artwork/ArtworkInfoPanel.vue

@@ -112,12 +112,16 @@
             <div class="description-content" v-html="artwork.description"></div>
         </div>
 
-        <!-- 创建时间 -->
+        <!-- 时间信息 -->
         <div class="artwork-meta">
-            <p>创建时间: {{ formatDate(artwork.create_date) }}</p>
-            <p v-if="artwork.update_date !== artwork.create_date">
-                更新时间: {{ formatDate(artwork.update_date) }}
-            </p>
+            <div class="meta-item">
+                <span class="meta-label">创建时间:</span>
+                <span class="meta-value">{{ formatDate(artwork.create_date) }}</span>
+            </div>
+            <div v-if="isValidUpdateDate && artwork.update_date !== artwork.create_date" class="meta-item">
+                <span class="meta-label">更新时间:</span>
+                <span class="meta-value">{{ formatDate(artwork.update_date) }}</span>
+            </div>
         </div>
     </div>
 </template>
@@ -159,9 +163,33 @@ const emit = defineEmits<{
 // 使用统一的图片代理函数
 const getImageUrl = getImageProxyUrl;
 
+// 检查更新时间是否有效
+const isValidUpdateDate = computed(() => {
+    if (!props.artwork.update_date) return false;
+
+    try {
+        const date = new Date(props.artwork.update_date);
+        return !isNaN(date.getTime());
+    } catch (error) {
+        return false;
+    }
+});
+
 // 格式化日期
 const formatDate = (dateString: string) => {
-    return new Date(dateString).toLocaleDateString('zh-CN');
+    if (!dateString) return '未知时间';
+
+    try {
+        const date = new Date(dateString);
+        if (isNaN(date.getTime())) {
+            console.warn('无效的日期格式:', dateString);
+            return '时间格式错误';
+        }
+        return date.toLocaleDateString('zh-CN');
+    } catch (error) {
+        console.error('日期格式化错误:', error);
+        return '时间解析失败';
+    }
 };
 
 // 处理标签点击
@@ -374,12 +402,29 @@ const handleTagClick = (event: MouseEvent, tagName: string) => {
 .artwork-meta {
     padding-top: 1.5rem;
     border-top: 1px solid #e5e7eb;
-}
-
-.artwork-meta p {
     color: #6b7280;
     font-size: 0.875rem;
-    margin: 0.25rem 0;
+}
+
+.meta-item {
+    display: flex;
+    align-items: center;
+    margin-bottom: 0.5rem;
+}
+
+.meta-item:last-child {
+    margin-bottom: 0;
+}
+
+.meta-label {
+    font-weight: 500;
+    color: #374151;
+    min-width: 80px;
+    margin-right: 0.5rem;
+}
+
+.meta-value {
+    color: #6b7280;
 }
 
 .artwork-navigation {

ui/src/views/ArtistView.vue

@@ -38,18 +38,37 @@
             </button>
             <div class="download-section">
               <div class="download-input-group">
-                <label for="downloadLimit">下载数量:</label>
-                <select v-model="downloadLimit" id="downloadLimit" class="download-select">
-                  <option value="10">10个</option>
-                  <option value="30">30个</option>
-                  <option value="50">50个</option>
-                  <option value="100">100个</option>
-                  <option value="200">200个</option>
-                  <option value="500">500个</option>
-                  <option value="9999">全部</option>
+                <label for="downloadType">下载方式:</label>
+                <select v-model="downloadType" id="downloadType" class="download-select"
+                  @change="handleDownloadTypeChange">
+                  <option value="custom">自定义数量</option>
+                  <option value="pages">按页数选择</option>
+                  <option value="all">全部下载</option>
                 </select>
               </div>
-              <button @click="handleDownloadAll" class="btn btn-secondary" :disabled="downloading">
+
+              <!-- 自定义数量输入 -->
+              <div v-if="downloadType === 'custom'" class="download-input-group">
+                <label for="customLimit">数量:</label>
+                <input v-model="customLimit" type="number" id="customLimit" class="download-input" :min="1" :max="9999"
+                  placeholder="输入数量" />
+              </div>
+
+              <!-- 按页数选择 -->
+              <div v-if="downloadType === 'pages'" class="download-input-group">
+                <label for="pageLimit">页数:</label>
+                <select v-model="pageLimit" id="pageLimit" class="download-select">
+                  <option value="1">1页 (30个)</option>
+                  <option value="2">2页 (60个)</option>
+                  <option value="3">3页 (90个)</option>
+                  <option value="5">5页 (150个)</option>
+                  <option value="10">10页 (300个)</option>
+                  <option value="20">20页 (600个)</option>
+                  <option value="50">50页 (1500个)</option>
+                </select>
+              </div>
+
+              <button @click="handleDownloadAll" class="btn btn-secondary" :disabled="downloading || !isDownloadValid">
                 {{ downloading ? '下载中...' : '下载作品' }}
               </button>
             </div>
@@ -178,7 +197,10 @@ const totalCount = ref(0);
 const totalPages = ref(0);
 
 // 下载设置
-const downloadLimit = ref('50');
+const downloadType = ref<'custom' | 'pages' | 'all'>('custom');
+const customLimit = ref('50');
+const pageLimit = ref('1');
+const downloadLimit = ref('50'); // 保留用于兼容性
 
 // 缓存相关
 const cache = ref<Map<string, any>>(new Map());
@@ -203,6 +225,29 @@ const visiblePages = computed(() => {
   return pages;
 });
 
+// 下载验证
+const isDownloadValid = computed(() => {
+  if (downloadType.value === 'custom') {
+    const limit = parseInt(customLimit.value);
+    return !isNaN(limit) && limit > 0 && limit <= 9999;
+  }
+  return true;
+});
+
+// 获取实际下载数量
+const getActualDownloadLimit = () => {
+  switch (downloadType.value) {
+    case 'custom':
+      return parseInt(customLimit.value) || 50;
+    case 'pages':
+      return parseInt(pageLimit.value) * 30;
+    case 'all':
+      return 9999;
+    default:
+      return 50;
+  }
+};
+
 // 缓存键生成
 const getCacheKey = (type: string, page: number) => {
   return `${route.params.id}_${type}_${page}`;
@@ -369,6 +414,16 @@ const handleTypeChange = () => {
   fetchArtworks(1);
 };
 
+// 处理下载类型切换
+const handleDownloadTypeChange = () => {
+  // 重置相关值
+  if (downloadType.value === 'custom') {
+    customLimit.value = '50';
+  } else if (downloadType.value === 'pages') {
+    pageLimit.value = '1';
+  }
+};
+
 // 跳转到指定页面
 const goToPage = (page: number) => {
   if (page < 1 || page === currentPage.value) return;
@@ -412,15 +467,30 @@ const handleDownloadAll = async () => {
 
   try {
     downloading.value = true;
+    const actualLimit = getActualDownloadLimit();
+
     const response = await downloadService.downloadArtistArtworks(artist.value.id, {
       type: artworkType.value,
-      limit: parseInt(downloadLimit.value)
+      limit: actualLimit
     });
 
     if (response.success) {
       console.log('下载任务已创建:', response.data);
-      const limitText = downloadLimit.value === '9999' ? '全部' : downloadLimit.value;
-      downloadSuccess.value = `下载任务已创建，将下载 ${limitText} 个作品`;
+
+      let limitText = '';
+      switch (downloadType.value) {
+        case 'custom':
+          limitText = `${actualLimit} 个`;
+          break;
+        case 'pages':
+          limitText = `${pageLimit.value} 页 (${actualLimit} 个)`;
+          break;
+        case 'all':
+          limitText = '全部';
+          break;
+      }
+
+      downloadSuccess.value = `下载任务已创建，将下载 ${limitText} 作品`;
 
       // 3秒后清除成功提示
       setTimeout(() => {
@@ -676,6 +746,23 @@ onMounted(async () => {
   min-width: 100px;
 }
 
+.download-input {
+  padding: 0.5rem 0.75rem;
+  border: 1px solid #d1d5db;
+  border-radius: 0.375rem;
+  background: white;
+  font-size: 0.875rem;
+  color: #374151;
+  min-width: 100px;
+  transition: border-color 0.2s;
+}
+
+.download-input:focus {
+  outline: none;
+  border-color: #3b82f6;
+  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
+}
+
 .btn {
   display: inline-flex;
   align-items: center;