fix: upload task display error

backend/services/data-management-service/src/main/java/com/datamate/datamanagement/application/DatasetFileApplicationService.java

@@ -112,9 +112,41 @@ public PagedResponse<DatasetFile> getDatasetFilesWithDirectory(String datasetId,
             return PagedResponse.of(new Page<>(page, size));
         }
         String datasetPath = dataset.getPath();
-        Path queryPath = Path.of(dataset.getPath() + File.separator + prefix);
+
+        // 规范化 prefix：去掉首尾斜杠，处理空字符串
+        prefix = Optional.ofNullable(prefix).orElse("").trim();
+        prefix = prefix.replace("\\", "/");
+        while (prefix.startsWith("/")) {
+            prefix = prefix.substring(1);
+        }
+        while (prefix.endsWith("/")) {
+            prefix = prefix.substring(0, prefix.length() - 1);
+        }
+
+        // 使用 Path API 安全地构建路径
+        Path basePath = Paths.get(datasetPath);
+        Path queryPath = prefix.isEmpty() ? basePath : basePath.resolve(prefix).normalize();
+
+        // 确保查询路径在数据集路径下（防止路径遍历）
+        if (!queryPath.startsWith(basePath)) {
+            log.warn("Invalid prefix path: datasetId={}, prefix={}, queryPath={}", datasetId, prefix, queryPath);
+            return PagedResponse.of(new Page<>(page, size));
+        }
+
         Map<String, DatasetFile> datasetFilesMap = datasetFileRepository.findAllByDatasetId(datasetId)
             .stream().collect(Collectors.toMap(DatasetFile::getFilePath, Function.identity()));
+
+        // 检查路径是否存在
+        if (!Files.exists(queryPath)) {
+            log.warn("Dataset path does not exist: datasetId={}, path={}, queryPath={}", datasetId, datasetPath, queryPath);
+            return PagedResponse.of(new Page<>(page, size));
+        }
+
+        if (!Files.isDirectory(queryPath)) {
+            log.warn("Dataset path is not a directory: datasetId={}, queryPath={}", datasetId, queryPath);
+            return PagedResponse.of(new Page<>(page, size));
+        }
+
         try (Stream<Path> pathStream = Files.list(queryPath)) {
             List<Path> allFiles = pathStream
                 .filter(path -> path.toString().startsWith(datasetPath))
@@ -140,7 +172,7 @@ public PagedResponse<DatasetFile> getDatasetFilesWithDirectory(String datasetId,
 
             return PagedResponse.of(page, size, total, totalPages, datasetFiles);
         } catch (IOException e) {
-            log.warn("list dataset path error");
+            log.error("Failed to list dataset files: datasetId={}, queryPath={}", datasetId, queryPath, e);
             return PagedResponse.of(new Page<>(page, size));
         }
     }

frontend/src/hooks/useSliceUpload.tsx

@@ -25,8 +25,11 @@ export function useFileSliceUpload(
     const { dataset } = detail;
     const title = `${t('hooks.sliceUpload.uploadDataset')}: ${dataset.name} `;
     const controller = new AbortController();
+    // 使用 dataset.id + 时间戳 + 随机数确保每个上传任务有唯一的 key
+    const uniqueKey = `${dataset.id}_${Date.now()}_${Math.random().toString(36).substring(2, 9)}`;
     const task: TaskItem = {
-      key: dataset.id,
+      key: uniqueKey,
+      datasetId: dataset.id, // 保存原始 datasetId 用于 API 调用
       title,
       percent: 0,
       reqId: -1,
@@ -92,7 +95,7 @@ export function useFileSliceUpload(
     if (!task) {
       return;
     }
-    const { reqId, key } = task;
+    const { reqId, key, datasetId } = task;
     const { loaded, i, j, files, totalSize } = fileInfo;
     const formData = await buildFormData({
       file: files[i],
@@ -102,7 +105,8 @@ export function useFileSliceUpload(
     });
 
     let newTask = { ...task };
-    await uploadChunk(key, formData, {
+    // 使用 datasetId 调用 API，key 用于唯一标识任务
+    await uploadChunk(datasetId || key, formData, {
       onUploadProgress: (e) => {
         const loadedSize = loaded + e.loaded;
         const curPercent = Number((loadedSize / totalSize) * 100).toFixed(2);
@@ -120,10 +124,10 @@ export function useFileSliceUpload(
 
   async function uploadFile({ task, files, totalSize }) {
     console.log('[useSliceUpload] Calling preUpload with prefix:', task.prefix);
-    const { data: reqId } = await preUpload(task.key, {
+    const { data: reqId } = await preUpload(task.datasetId || task.key, {
       totalFileNum: files.length,
       totalSize,
-      datasetId: task.key,
+      datasetId: task.datasetId || task.key,
       hasArchive: task.hasArchive,
       prefix: task.prefix,
     });

frontend/src/pages/DataManagement/dataset.model.ts

@@ -95,6 +95,7 @@ export interface DatasetTask {
 
 export interface TaskItem {
   key: string;
+  datasetId?: string; // 数据集 ID（用于 API 调用）
   title: string;
   percent: number;
   reqId: number;
@@ -104,4 +105,5 @@ export interface TaskItem {
   updateEvent?: string;
   size?: number;
   hasArchive?: boolean;
+  prefix?: string; // 当前路径前缀
 }