refactor(品牌工具页): 抽取 formatDateTime 与 uploadPathsToJava 公共工具

- 新增 shared/utils/datetime.ts：13 个品牌页逐字重复的 formatDateTime 收敛为一处；
  语义不同的 3 个变体（toLocaleString / 字符串切片 / 支持时间戳）保留不动
- 新增 shared/utils/upload-to-java.ts：10 个品牌页的上传循环收敛，api 依赖注入便于单测；
  保留 uploadOss（品牌Tab）与 returnEmptyWhenUnavailable（跟价）两处行为差异
- 补 datetime / upload-to-java 单测 10 例

净减约 327 行；vue-tsc 构建与 690 个前端单测全通过

frontend-vue/src/pages/brand/components/BrandAppearancePatentTab.vue

@@ -97,7 +97,7 @@ import {
   type UploadedFileRef,
   type UploadFileVo,
 } from '@/shared/api/java-modules'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import { getPywebviewApi } from '@/shared/bridges/pywebview'
 import { getTaskPollIntervalMs } from '@/shared/task-progress-config'
 import { getStoredApiSecret } from '@/shared/utils/api-secret-store'
@@ -110,6 +110,8 @@ import {
   checkSelectedFiles,
 } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const selectedFileNames = ref<string[]>([])
 const uploadedFiles = ref<UploadFileVo[]>([])
@@ -293,37 +295,6 @@ function loadPollingIds() {
   }
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
-async function uploadAppearancePathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传能力')
-  }
-  const files: UploadFileVo[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const uploaded = await api.upload_file_to_java(filePath, relativePath)
-    if (!uploaded?.success || !uploaded.data) {
-      throw new Error(uploaded?.error || uploaded?.message || `上传失败：${filePath}`)
-    }
-    files.push(uploaded.data)
-  }
-  return files
-}
-
 async function selectFiles() {
   const api = getPywebviewApi()
   if (!api?.select_brand_xlsx_files || !api.upload_file_to_java) {
@@ -334,7 +305,7 @@ async function selectFiles() {
   if (!paths?.length) return
   if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
   try {
-    const files = await uploadAppearancePathsToJava(paths)
+    const files = await uploadPathsToJava(getPywebviewApi(), paths)
     uploadedFiles.value = files
     selectedFileNames.value = files.map((f) => f.relativePath || f.originalFilename || f.fileKey)
     parseResult.value = null
@@ -366,7 +337,7 @@ async function selectFolder() {
       return
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
-    const files = await uploadAppearancePathsToJava(result.items)
+    const files = await uploadPathsToJava(getPywebviewApi(), result.items)
     uploadedFiles.value = files
     selectedFileNames.value = result.items.map((item) => item.relativePath || item.absolutePath)
     parseResult.value = null

frontend-vue/src/pages/brand/components/BrandBrandTab.vue

@@ -125,7 +125,8 @@ import { getTaskPollIntervalMs } from '@/shared/task-progress-config'
 import { createCategorizedTimers } from '@/shared/utils/categorized-timers'
 import type { UploadFileVo } from '@/shared/api/upload.ts'
 import type { UploadedFileRef } from '@/shared/api/types/upload.ts'
-import type { BrandExpandFolderItem } from '@/shared/api/types/modules/brand'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const uploadedFiles = ref<UploadFileVo[]>([])
 const strategy = ref<'Terms' | 'Simple'>('Simple')
@@ -342,38 +343,7 @@ function toBrandTaskView(item: BrandTaskItem): TaskItemView {
   }
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 /** 上传本地 xlsx 到 Java 临时目录，成功后回填 fileUrl（服务器本地路径，Java 直接读取） */
-async function uploadBrandPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前环境未提供文件上传能力')
-  }
-  const files: UploadFileVo[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const uploaded = await api.upload_file_to_java(filePath, relativePath, true)
-    if (!uploaded?.success || !uploaded.data) {
-      throw new Error(uploaded?.error || uploaded?.message || `上传失败：${filePath}`)
-    }
-    files.push(uploaded.data)
-  }
-  return files
-}
-
 async function selectFiles() {
   const bridge = getPywebviewApi()
   if (!bridge?.select_brand_xlsx_files) {
@@ -384,7 +354,7 @@ async function selectFiles() {
   if (!paths?.length) return
   if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
   try {
-    const files = await uploadBrandPathsToJava(paths)
+    const files = await uploadPathsToJava(getPywebviewApi(), paths, { uploadOss: true })
     uploadedFiles.value = files
     ElMessage.success(`已选择并上传 ${files.length} 个 Excel 文件`)
   } catch (error) {
@@ -412,7 +382,7 @@ async function selectFolder() {
       return
     }
     if (!(await passGuard(checkSelectedFiles(res.items.map((i) => i.absolutePath), { allowedExtensions: EXCEL_EXTENSIONS })))) return
-    const files = await uploadBrandPathsToJava(res.items)
+    const files = await uploadPathsToJava(getPywebviewApi(), res.items, { uploadOss: true })
     uploadedFiles.value = files
     ElMessage.success(`已选择并上传文件夹内 ${files.length} 个 Excel 文件`)
   } catch (error) {

frontend-vue/src/pages/brand/components/BrandCollectDataTab.vue

@@ -150,7 +150,7 @@ import AmazonToolPageShell from '@/pages/amazon/components/AmazonToolPageShell.v
 import ModuleTemplateDownload from '@/shared/components/ModuleTemplateDownload.vue'
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import { getPywebviewApi } from '@/shared/bridges/pywebview'
 import { useTaskProgressLoop } from '@/shared/composables/useTaskProgressLoop'
 import { createCategorizedTimers } from '@/shared/utils/categorized-timers'
@@ -179,6 +179,8 @@ import {
   type CollectDataTaskDetailVo,
   type UploadFileVo,
 } from '@/shared/api/java-modules'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const COUNTRY_OPTIONS = [
   { code: 'DE', label: '德国' },
@@ -307,24 +309,6 @@ async function loadCountryPreference() {
   }
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传能力')
-  }
-  const files: UploadFileVo[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const uploaded = await api.upload_file_to_java(filePath, relativePath)
-    if (!uploaded?.success || !uploaded.data) {
-      throw new Error(uploaded?.error || uploaded?.message || `上传失败：${filePath}`)
-    }
-    files.push(uploaded.data)
-  }
-  return files
-}
-
 async function selectFiles() {
   const api = getPywebviewApi()
   if (!api?.select_brand_xlsx_files || !api.upload_file_to_java) {
@@ -335,7 +319,7 @@ async function selectFiles() {
     const paths = await api.select_brand_xlsx_files()
     if (!paths?.length) return
     if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
-    const files = await uploadPathsToJava(paths)
+    const files = await uploadPathsToJava(getPywebviewApi(), paths)
     uploadedFiles.value = files
     selectedFileNames.value = files.map((f) => f.relativePath || f.originalFilename || f.fileKey)
     lastTaskId.value = null
@@ -365,7 +349,7 @@ async function selectFolder() {
       return
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
-    const files = await uploadPathsToJava(result.items)
+    const files = await uploadPathsToJava(getPywebviewApi(), result.items)
     uploadedFiles.value = files
     selectedFileNames.value = result.items.map((item) => item.relativePath || item.absolutePath)
     lastTaskId.value = null
@@ -501,19 +485,6 @@ async function pushToPythonQueue() {
   }
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 function normalizeTaskStatus(item: CollectDataHistoryItem) {
   return (item.taskStatus || '').toUpperCase()
 }

frontend-vue/src/pages/brand/components/BrandConvertTab.vue

@@ -155,7 +155,6 @@ import AmazonToolPageShell from '@/pages/amazon/components/AmazonToolPageShell.v
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
 import { expandBrandFolderRecursive } from '@/shared/api/brand'
-import type { BrandExpandFolderItem } from '@/shared/api/brand'
 import {
   deleteConvertHistory,
   getConvertHistory,
@@ -169,6 +168,8 @@ import { getPywebviewApi, type UploadedJavaFile } from '@/shared/bridges/pywebvi
 import { saveUrlWithProgress } from '@/shared/utils/download-progress'
 import { EXCEL_EXTENSIONS, checkSelectedFiles, guardBlocked } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const convertSelectedPaths = ref<string[]>([])
 const convertArchiveName = ref('')
@@ -210,19 +211,6 @@ function itemSource(item: TaskItemView): ConvertResultItem {
   return item.source as ConvertResultItem
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 function convertTaskStatusText(item: ConvertResultItem) {
   const status = (item.taskStatus || '').toUpperCase()
   if (status === 'RUNNING') return '执行中'
@@ -254,25 +242,6 @@ function toConvertTaskView(item: ConvertResultItem): TaskItemView {
   }
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传桥接能力')
-  }
-
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 async function loadConvertTemplates(preferredTemplateId?: string) {
   const templates = await getConvertTemplates()
   convertTemplates.value = templates || []
@@ -300,7 +269,7 @@ async function loadConvertTemplates(preferredTemplateId?: string) {
 async function handleSelectedPaths(paths: string[], successMessage: string) {
   convertSelectedPaths.value = paths
   convertArchiveName.value = ''
-  convertUploadedFiles.value = await uploadPathsToJava(paths)
+  convertUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), paths)
   ElMessage.success(successMessage)
 }
 
@@ -339,7 +308,7 @@ async function selectConvertFolder() {
     if (result.success && result.items?.length) {
       if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
       convertSelectedPaths.value = result.items.map((item) => item.relativePath)
-      convertUploadedFiles.value = await uploadPathsToJava(result.items)
+      convertUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), result.items)
       ElMessage.success(`已选择文件夹内 ${result.items.length} 个 xlsx 文件`)
       return
     }

frontend-vue/src/pages/brand/components/BrandDedupeTab.vue

@@ -120,12 +120,14 @@ import { ElMessage } from 'element-plus'
 import AmazonToolPageShell from '@/pages/amazon/components/AmazonToolPageShell.vue';
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import { deleteDedupeHistory, getDedupeHistory, getDedupeResultDownloadUrl, getDedupeRunProgress, getExcelInfo, runDedupe, type DedupeResultItem, type DedupeRunProgressVo, type DedupeRunVo } from '@/shared/api/java-modules'
 import { getPywebviewApi, type UploadedJavaFile } from '@/shared/bridges/pywebview'
 import { saveUrlWithProgress } from '@/shared/utils/download-progress'
 import { EXCEL_EXTENSIONS, checkSelectedFiles, guardBlocked } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const cleanAvailableColumns = ref<string[]>([])
 const cleanSelectedColumns = ref<string[]>([])
@@ -144,19 +146,6 @@ const cleanDisplayPaths = computed(() => cleanSelectedPaths.value.slice(0, 8))
 const latestRunId = ref('')
 const cleanRunStartedAt = ref('')
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 function itemSource(item: TaskItemView): DedupeResultItem {
   return item.source as DedupeResultItem
 }
@@ -231,24 +220,6 @@ function clearAllCleanColumns() {
   cleanSelectedColumns.value = []
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传桥接能力')
-  }
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 async function loadCleanHeaders(fileKey: string) {
   const result = await getExcelInfo(fileKey)
   if (!result.headers?.length) {
@@ -272,7 +243,7 @@ async function loadCleanHeaders(fileKey: string) {
 async function handleSelectedPaths(paths: string[], successMessage: string) {
   cleanSelectedPaths.value = paths
   cleanArchiveName.value = ''
-  cleanUploadedFiles.value = await uploadPathsToJava(paths)
+  cleanUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), paths)
   if (cleanUploadedFiles.value.length > 0) {
     await loadCleanHeaders(cleanUploadedFiles.value[0].fileKey)
   }
@@ -314,7 +285,7 @@ async function selectCleanFolder() {
     if (result.success && result.items?.length) {
       if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
       cleanSelectedPaths.value = result.items.map((item) => item.relativePath)
-      cleanUploadedFiles.value = await uploadPathsToJava(result.items)
+      cleanUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), result.items)
       if (cleanUploadedFiles.value.length > 0) {
         await loadCleanHeaders(cleanUploadedFiles.value[0].fileKey)
       }

frontend-vue/src/pages/brand/components/BrandDeleteBrandTab.vue

@@ -114,7 +114,7 @@ import ModuleTemplateDownload from '@/shared/components/ModuleTemplateDownload.v
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
 import ZiniaoVersionSetting from '@/shared/components/ZiniaoVersionSetting.vue'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import {
   deleteDeleteBrandHistory,
   getDeleteBrandHistory,
@@ -139,6 +139,8 @@ import {
 } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
 import { useZiniaoVersion } from '@/shared/utils/ziniao-version'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 interface SessionDeleteBrandItem extends DeleteBrandResultItem {
   _pushed?: boolean
@@ -534,19 +536,6 @@ function taskFinishedAt(item: DeleteBrandResultItem) {
   return taskDetails.value[item.taskId]?.task?.finishedAt ?? ''
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
-}
-
 
 function formatMatchResult(item: DeleteBrandResultItem) {
   if (item.matchStatus === 'INDEX_STALE' && isUsableMatchedItem(item)) {
@@ -1023,24 +1012,6 @@ function stopPolling() {
   clearAutoRetryTimer()
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传桥接能力')
-  }
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 async function selectFiles() {
   const api = getPywebviewApi()
   if (!api?.select_brand_xlsx_files) {
@@ -1052,7 +1023,7 @@ async function selectFiles() {
     if (!paths?.length) return
     if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
     selectedPaths.value = paths
-    uploadedFiles.value = await uploadPathsToJava(paths)
+    uploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), paths)
     ElMessage.success(`已选择 ${paths.length} 个删除品牌文件`)
   } catch (error) {
     // 上传失败时清空选择，避免残留上一批文件让用户误以为新文件已就绪
@@ -1079,7 +1050,7 @@ async function selectFolder() {
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
     selectedPaths.value = result.items.map((item) => item.relativePath || item.absolutePath)
-    uploadedFiles.value = await uploadPathsToJava(result.items)
+    uploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), result.items)
     ElMessage.success(`已选择文件夹内 ${result.items.length} 个 xlsx 文件`)
   } catch (error) {
     selectedPaths.value = []

frontend-vue/src/pages/brand/components/BrandPatrolDeleteTab.vue

@@ -272,6 +272,7 @@ import {
   countryLabel,
   sanitizeCountryCodes,
 } from "@/shared/country-options";
+import { formatDateTime } from '@/shared/utils/datetime'
 
 const MAX_TRANSIENT_ERRORS = 30;
 /** 任务终态后等待结果文件（Java 侧异步生成）的最大轮次，12 × 10s ≈ 2 分钟 */
@@ -447,19 +448,6 @@ function createSubmissionId(taskId: number, shopName?: string) {
   return `patrol-delete:${taskId}:${shopName || "shop"}:${Date.now()}`;
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return "-";
-  const date = new Date(value);
-  if (Number.isNaN(date.getTime())) return value;
-  const year = date.getFullYear();
-  const month = String(date.getMonth() + 1).padStart(2, "0");
-  const day = String(date.getDate()).padStart(2, "0");
-  const hours = String(date.getHours()).padStart(2, "0");
-  const minutes = String(date.getMinutes()).padStart(2, "0");
-  const seconds = String(date.getSeconds()).padStart(2, "0");
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
-}
-
 function formatMatchStatus(status?: string) {
   const value = (status || "").trim();
   const map: Record<string, string> = {

frontend-vue/src/pages/brand/components/BrandPriceTrackTab.vue

@@ -257,6 +257,8 @@ import {
   type PriceTrackShopQueueItem,
   type PriceTrackTaskDetailVo,
 } from '@/shared/api/java-modules'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const ziniaoVersion = useZiniaoVersion()
 
@@ -336,19 +338,6 @@ function snapTask(item: PriceTrackHistoryItem) {
   return item.taskId ? taskSnapshots.value[item.taskId]?.task : undefined
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
-}
-
 const pollTimer = ref<number | null>(null)
 const pollingInFlight = ref(false)
 let disposed = false
@@ -511,7 +500,7 @@ async function selectAsinFile() {
   }
   try {
     asinFiles.value = paths
-    asinUploadedFiles.value = await uploadAsinPathsToJava(paths)
+    asinUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), paths, { returnEmptyWhenUnavailable: true })
     ElMessage.success(`已选择 ${paths.length} 个ASIN文件`)
   } catch (error) {
     // 上传失败时清空选择，避免本地路径残留被当作服务器路径提交给 Java
@@ -537,7 +526,7 @@ async function selectAsinFolder() {
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_CSV_EXTENSIONS })))) return
     asinFiles.value = result.items.map((item) => item.relativePath || item.absolutePath)
-    asinUploadedFiles.value = await uploadAsinPathsToJava(result.items)
+    asinUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), result.items, { returnEmptyWhenUnavailable: true })
     ElMessage.success(`已选择文件夹内 ${result.items.length} 个ASIN文件`)
   } catch (error) {
     // 上传失败时清空选择，避免残留上一批文件让用户误以为新文件已就绪
@@ -550,24 +539,6 @@ async function selectAsinFolder() {
 
 
 // ========== 国家顺序相关 ==========
-async function uploadAsinPathsToJava(paths: Array<string | { absolutePath: string; relativePath?: string }>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    return []
-  }
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 function resolveAsinRequestPaths() {
   // 提交上传返回的 fileKey（与去重/转换/采集等模块一致）：服务端按 key 反查上传临时目录，
   // 不依赖上传返回的 localPath 绝对路径形态——安全加固后服务端按拼接解析绝对路径会失败。

frontend-vue/src/pages/brand/components/BrandProductRiskTab.vue

@@ -174,6 +174,7 @@ import { checkQueuePayload, guardBlocked } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
 import ZiniaoVersionSetting from '@/shared/components/ZiniaoVersionSetting.vue'
 import { useZiniaoVersion } from '@/shared/utils/ziniao-version'
+import { formatDateTime } from '@/shared/utils/datetime'
 
 const shopInput = ref('')
 const candidates = ref<ProductRiskCandidateVo[]>([])
@@ -338,19 +339,6 @@ function snapTask(item: ProductRiskHistoryItem) {
   return item.taskId ? taskSnapshots.value[item.taskId]?.task : undefined
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
-}
-
 const pollTimer = ref<number | null>(null)
 const pollingInFlight = ref(false)
 let disposed = false

frontend-vue/src/pages/brand/components/BrandPublishTab.vue

@@ -191,7 +191,7 @@ import ModuleTemplateDownload from '@/shared/components/ModuleTemplateDownload.v
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
 import ZiniaoVersionSetting from '@/shared/components/ZiniaoVersionSetting.vue'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import {
   activatePublishFile,
   activatePublishTask,
@@ -219,6 +219,7 @@ import {
 } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
 import { useZiniaoVersion, type ZiniaoVersion } from '@/shared/utils/ziniao-version'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const COUNTRY_OPTIONS = [
   { code: 'DE', label: '德国' },
@@ -476,22 +477,6 @@ function onSyncCountryChange(code: string, event: Event) {
   syncCountries.value = COUNTRY_OPTIONS.map((item) => item.code).filter((item) => selected.has(item))
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) throw new Error('当前桌面端未提供文件上传能力')
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 async function selectFiles() {
   const api = getPywebviewApi()
   if (!api?.select_brand_xlsx_files || !api.upload_file_to_java) {
@@ -503,7 +488,7 @@ async function selectFiles() {
     if (!paths?.length) return
     if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
     uploading.value = true
-    const uploaded = await uploadPathsToJava(paths)
+    const uploaded = await uploadPathsToJava(getPywebviewApi(), paths)
     selectedPaths.value = paths
     uploadedFiles.value = uploaded
     ElMessage.success(`已上传 ${uploaded.length} 个待上架文件`)
@@ -533,7 +518,7 @@ async function selectFolder() {
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
     uploading.value = true
-    const uploaded = await uploadPathsToJava(result.items)
+    const uploaded = await uploadPathsToJava(getPywebviewApi(), result.items)
     selectedPaths.value = result.items.map((item) => item.relativePath || item.absolutePath)
     uploadedFiles.value = uploaded
     ElMessage.success(`已上传文件夹内 ${uploaded.length} 个 xlsx 文件`)

frontend-vue/src/pages/brand/components/BrandQueryAsinTab.vue

@@ -214,6 +214,7 @@ import { checkQueuePayload } from "@/shared/dispatch-guard";
 import { passGuard } from "@/shared/dispatch-guard-ui";
 import ZiniaoVersionSetting from "@/shared/components/ZiniaoVersionSetting.vue";
 import { useZiniaoVersion } from "@/shared/utils/ziniao-version";
+import { formatDateTime } from '@/shared/utils/datetime'
 
 const MAX_TRANSIENT_ERRORS = 30;
 const ziniaoVersion = useZiniaoVersion();
@@ -375,19 +376,6 @@ function createSubmissionId(taskId: number, shopName?: string) {
   return `query-asin:${taskId}:${shopName || "shop"}:${Date.now()}`;
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return "-";
-  const date = new Date(value);
-  if (Number.isNaN(date.getTime())) return value;
-  const year = date.getFullYear();
-  const month = String(date.getMonth() + 1).padStart(2, "0");
-  const day = String(date.getDate()).padStart(2, "0");
-  const hours = String(date.getHours()).padStart(2, "0");
-  const minutes = String(date.getMinutes()).padStart(2, "0");
-  const seconds = String(date.getSeconds()).padStart(2, "0");
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
-}
-
 function formatMatchStatus(status?: string) {
   const value = (status || "").trim();
   const map: Record<string, string> = {

frontend-vue/src/pages/brand/components/BrandSimilarAsinTab.vue

@@ -135,7 +135,7 @@ import {
   type UploadedFileRef,
   type UploadFileVo,
 } from '@/shared/api/java-modules'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import { getPywebviewApi, type ProxyMode } from '@/shared/bridges/pywebview'
 import { getTaskPollIntervalMs } from '@/shared/task-progress-config'
 import { getStoredApiSecret } from '@/shared/utils/api-secret-store'
@@ -150,6 +150,8 @@ import {
   checkSelectedFiles,
 } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const selectedFileNames = ref<string[]>([])
 const uploadedFiles = ref<UploadFileVo[]>([])
@@ -300,19 +302,6 @@ function getRequiredAlipriceCredentials() {
   return { username, password }
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 function maskSecret(secret: string) {
   if (!secret) return ''
   if (secret.length <= 10) return '***'
@@ -374,24 +363,6 @@ function loadPollingIds() {
   }
 }
 
-async function uploadAppearancePathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传能力')
-  }
-  const files: UploadFileVo[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const uploaded = await api.upload_file_to_java(filePath, relativePath)
-    if (!uploaded?.success || !uploaded.data) {
-      throw new Error(uploaded?.error || uploaded?.message || `上传失败：${filePath}`)
-    }
-    files.push(uploaded.data)
-  }
-  return files
-}
-
 async function selectFiles() {
   const api = getPywebviewApi()
   if (!api?.select_brand_xlsx_files || !api.upload_file_to_java) {
@@ -402,7 +373,7 @@ async function selectFiles() {
   if (!paths?.length) return
   if (!(await passGuard(checkSelectedFiles(paths, { allowedExtensions: EXCEL_EXTENSIONS })))) return
   try {
-    const files = await uploadAppearancePathsToJava(paths)
+    const files = await uploadPathsToJava(getPywebviewApi(), paths)
     uploadedFiles.value = files
     selectedFileNames.value = files.map((f) => f.relativePath || f.originalFilename || f.fileKey)
     parseResult.value = null
@@ -434,7 +405,7 @@ async function selectFolder() {
       return
     }
     if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
-    const files = await uploadAppearancePathsToJava(result.items)
+    const files = await uploadPathsToJava(getPywebviewApi(), result.items)
     uploadedFiles.value = files
     selectedFileNames.value = result.items.map((item) => item.relativePath || item.absolutePath)
     parseResult.value = null

frontend-vue/src/pages/brand/components/BrandSplitTab.vue

@@ -141,12 +141,14 @@ import { ElMessage } from 'element-plus'
 import AmazonToolPageShell from '@/pages/amazon/components/AmazonToolPageShell.vue';
 import TaskCenterPanel from '@/shared/components/tasks/TaskCenterPanel.vue'
 import type { TaskItemView, TaskStatCard } from '@/shared/components/tasks/types'
-import { expandBrandFolderRecursive, type BrandExpandFolderItem } from '@/shared/api/brand'
+import { expandBrandFolderRecursive } from '@/shared/api/brand'
 import { deleteSplitHistory, getExcelInfo, getSplitHistory, getSplitResultDownloadUrl, runSplit, type SplitResultItem } from '@/shared/api/java-modules'
 import { getPywebviewApi, type UploadedJavaFile } from '@/shared/bridges/pywebview'
 import { saveUrlWithProgress } from '@/shared/utils/download-progress'
 import { EXCEL_EXTENSIONS, checkSelectedFiles, guardBlocked } from '@/shared/dispatch-guard'
 import { passGuard } from '@/shared/dispatch-guard-ui'
+import { formatDateTime } from '@/shared/utils/datetime'
+import { uploadPathsToJava } from '@/shared/utils/upload-to-java'
 
 const splitSelectedPaths = ref<string[]>([])
 const splitArchiveName = ref('')
@@ -188,19 +190,6 @@ function itemSource(item: TaskItemView): SplitResultItem {
   return item.source as SplitResultItem
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return '-'
-  const date = new Date(value)
-  if (Number.isNaN(date.getTime())) return value
-  const year = date.getFullYear()
-  const month = String(date.getMonth() + 1).padStart(2, '0')
-  const day = String(date.getDate()).padStart(2, '0')
-  const hours = String(date.getHours()).padStart(2, '0')
-  const minutes = String(date.getMinutes()).padStart(2, '0')
-  const seconds = String(date.getSeconds()).padStart(2, '0')
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
-}
-
 function splitTaskStatusText(item: SplitResultItem) {
   const status = (item.taskStatus || '').toUpperCase()
   if (status === 'RUNNING') return '执行中'
@@ -235,24 +224,6 @@ function toSplitTaskView(item: SplitResultItem): TaskItemView {
   }
 }
 
-async function uploadPathsToJava(paths: Array<string | BrandExpandFolderItem>) {
-  const api = getPywebviewApi()
-  if (!api?.upload_file_to_java) {
-    throw new Error('当前桌面端未提供文件上传桥接能力')
-  }
-  const uploaded: UploadedJavaFile[] = []
-  for (const item of paths) {
-    const filePath = typeof item === 'string' ? item : item.absolutePath
-    const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const result = await api.upload_file_to_java(filePath, relativePath)
-    if (!result?.success || !result.data) {
-      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
-    }
-    uploaded.push(result.data)
-  }
-  return uploaded
-}
-
 async function loadSplitInfo(fileKey: string) {
   const result = await getExcelInfo(fileKey)
   splitAvailableColumns.value = result.headers || []
@@ -263,7 +234,7 @@ async function loadSplitInfo(fileKey: string) {
 async function handleSelectedPaths(paths: string[], successMessage: string) {
   splitSelectedPaths.value = paths
   splitArchiveName.value = ''
-  splitUploadedFiles.value = await uploadPathsToJava(paths)
+  splitUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), paths)
   if (splitUploadedFiles.value.length > 0) {
     await loadSplitInfo(splitUploadedFiles.value[0].fileKey)
   }
@@ -305,7 +276,7 @@ async function selectSplitFolder() {
     if (result.success && result.items?.length) {
       if (!(await passGuard(checkSelectedFiles(result.items, { allowedExtensions: EXCEL_EXTENSIONS })))) return
       splitSelectedPaths.value = result.items.map((item) => item.relativePath)
-      splitUploadedFiles.value = await uploadPathsToJava(result.items)
+      splitUploadedFiles.value = await uploadPathsToJava(getPywebviewApi(), result.items)
       if (splitUploadedFiles.value.length > 0) {
         await loadSplitInfo(splitUploadedFiles.value[0].fileKey)
       }

frontend-vue/src/pages/brand/components/BrandWithdrawTab.vue

@@ -254,6 +254,7 @@ import { checkQueuePayload } from "@/shared/dispatch-guard";
 import { passGuard } from "@/shared/dispatch-guard-ui";
 import ZiniaoVersionSetting from "@/shared/components/ZiniaoVersionSetting.vue";
 import { useZiniaoVersion } from "@/shared/utils/ziniao-version";
+import { formatDateTime } from '@/shared/utils/datetime'
 
 const MAX_TRANSIENT_ERRORS = 30;
 const ziniaoVersion = useZiniaoVersion();
@@ -506,19 +507,6 @@ function createSubmissionId(taskId: number, shopName?: string) {
   return `withdraw:${taskId}:${shopName || "shop"}:${Date.now()}`;
 }
 
-function formatDateTime(value?: string) {
-  if (!value) return "-";
-  const date = new Date(value);
-  if (Number.isNaN(date.getTime())) return value;
-  const year = date.getFullYear();
-  const month = String(date.getMonth() + 1).padStart(2, "0");
-  const day = String(date.getDate()).padStart(2, "0");
-  const hours = String(date.getHours()).padStart(2, "0");
-  const minutes = String(date.getMinutes()).padStart(2, "0");
-  const seconds = String(date.getSeconds()).padStart(2, "0");
-  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
-}
-
 function formatMatchStatus(status?: string) {
   const value = (status || "").trim();
   const map: Record<string, string> = {

frontend-vue/src/shared/utils/datetime.ts

@@ -0,0 +1,20 @@
+/**
+ * 时间展示工具（前端各工具页统一使用）。
+ */
+
+/**
+ * 把后端时间串格式化为 `YYYY-MM-DD HH:mm:ss`（本地时区）。
+ * 空值返回 '-'；无法解析时原样返回，避免把后端原始串吞掉。
+ */
+export function formatDateTime(value?: string): string {
+  if (!value) return '-'
+  const date = new Date(value)
+  if (Number.isNaN(date.getTime())) return value
+  const year = date.getFullYear()
+  const month = String(date.getMonth() + 1).padStart(2, '0')
+  const day = String(date.getDate()).padStart(2, '0')
+  const hours = String(date.getHours()).padStart(2, '0')
+  const minutes = String(date.getMinutes()).padStart(2, '0')
+  const seconds = String(date.getSeconds()).padStart(2, '0')
+  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
+}

frontend-vue/src/shared/utils/upload-to-java.ts

@@ -0,0 +1,47 @@
+import type { PywebviewApi, UploadedJavaFile } from '../bridges/pywebview.ts'
+
+/** 待上传条目：本机绝对路径字符串，或展开文件夹得到的 { absolutePath, relativePath }。 */
+export interface UploadPathItem {
+  absolutePath: string
+  relativePath?: string
+}
+
+export interface UploadPathsToJavaOptions {
+  /** 透传给桥的 uploadOss 参数；需要把文件落到 OSS 的模块传 true。 */
+  uploadOss?: boolean
+  /** 缺少上传桥时返回空数组而非抛错（个别模块的降级语义）。 */
+  returnEmptyWhenUnavailable?: boolean
+}
+
+/**
+ * 逐个把本机文件上传给 Java，返回上传结果列表。
+ *
+ * 任一个失败即整体抛错（不返回半成品），由调用方统一提示并清空已选文件，
+ * 避免残留上一批让用户误以为新文件已就绪。
+ *
+ * api 由调用方传入（通常是 `getPywebviewApi()`），便于脱离桌面桥单测。
+ */
+export async function uploadPathsToJava(
+  api: PywebviewApi | undefined,
+  paths: ReadonlyArray<string | UploadPathItem>,
+  options: UploadPathsToJavaOptions = {},
+): Promise<UploadedJavaFile[]> {
+  const upload = api?.upload_file_to_java
+  if (!upload) {
+    if (options.returnEmptyWhenUnavailable) {
+      return []
+    }
+    throw new Error('当前桌面端未提供文件上传能力')
+  }
+  const uploaded: UploadedJavaFile[] = []
+  for (const item of paths) {
+    const filePath = typeof item === 'string' ? item : item.absolutePath
+    const relativePath = typeof item === 'string' ? undefined : item.relativePath
+    const result = await upload(filePath, relativePath, options.uploadOss)
+    if (!result?.success || !result.data) {
+      throw new Error(result?.error || result?.message || `上传失败：${filePath}`)
+    }
+    uploaded.push(result.data)
+  }
+  return uploaded
+}

frontend-vue/tests/datetime.test.ts

@@ -0,0 +1,23 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import { formatDateTime } from '../src/shared/utils/datetime.ts'
+
+// 用本地时间构造再往返 ISO，期望值由同一本地时区还原，避免依赖运行环境的时区。
+test('formatDateTime 空值返回 -', () => {
+  assert.equal(formatDateTime(undefined), '-')
+  assert.equal(formatDateTime(''), '-')
+})
+
+test('formatDateTime 无法解析时原样返回', () => {
+  assert.equal(formatDateTime('not-a-date'), 'not-a-date')
+})
+
+test('formatDateTime 按 YYYY-MM-DD HH:mm:ss 补零（个位月/日/时/分/秒）', () => {
+  const local = new Date(2026, 0, 5, 9, 7, 3)
+  assert.equal(formatDateTime(local.toISOString()), '2026-01-05 09:07:03')
+})
+
+test('formatDateTime 年末边界', () => {
+  const local = new Date(2026, 11, 31, 23, 59, 59)
+  assert.equal(formatDateTime(local.toISOString()), '2026-12-31 23:59:59')
+})

frontend-vue/tests/upload-to-java.test.ts

@@ -0,0 +1,70 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import { uploadPathsToJava } from '../src/shared/utils/upload-to-java.ts'
+import type { PywebviewApi } from '../src/shared/bridges/pywebview.ts'
+
+function fakeApi(
+  upload: (
+    filePath: string,
+    relativePath?: string,
+    uploadOss?: boolean,
+  ) => Promise<{ success: boolean; data?: never; error?: string; message?: string }>,
+) {
+  return { upload_file_to_java: upload } as unknown as PywebviewApi
+}
+
+function okData(filePath: string) {
+  return { fileKey: `k:${filePath}`, originalFilename: filePath, localPath: '', size: 1 }
+}
+
+test('uploadPathsToJava 逐个上传并返回结果列表', async () => {
+  const calls: Array<[string, string | undefined, boolean | undefined]> = []
+  const api = fakeApi(async (filePath, relativePath, uploadOss) => {
+    calls.push([filePath, relativePath, uploadOss])
+    return { success: true, data: okData(filePath) as never }
+  })
+
+  const result = await uploadPathsToJava(api, ['/a.xlsx', { absolutePath: '/b.xlsx', relativePath: 'sub/b.xlsx' }])
+
+  assert.equal(result.length, 2)
+  assert.deepEqual(calls, [
+    ['/a.xlsx', undefined, undefined],
+    ['/b.xlsx', 'sub/b.xlsx', undefined],
+  ])
+})
+
+test('uploadPathsToJava 透传 uploadOss 参数', async () => {
+  let seen: boolean | undefined
+  const api = fakeApi(async (filePath, _relativePath, uploadOss) => {
+    seen = uploadOss
+    return { success: true, data: okData(filePath) as never }
+  })
+
+  await uploadPathsToJava(api, ['/a.xlsx'], { uploadOss: true })
+
+  assert.equal(seen, true)
+})
+
+test('uploadPathsToJava 任一失败即整体抛错并带上桥返回的文案', async () => {
+  const api = fakeApi(async (filePath) =>
+    filePath === '/bad.xlsx'
+      ? { success: false, error: '磁盘读取失败' }
+      : { success: true, data: okData(filePath) as never },
+  )
+
+  await assert.rejects(() => uploadPathsToJava(api, ['/ok.xlsx', '/bad.xlsx']), /磁盘读取失败/)
+})
+
+test('uploadPathsToJava 失败无文案时回落到「上传失败：路径」', async () => {
+  const api = fakeApi(async () => ({ success: false }))
+
+  await assert.rejects(() => uploadPathsToJava(api, ['/x.xlsx']), /上传失败：\/x\.xlsx/)
+})
+
+test('uploadPathsToJava 缺上传桥默认抛错', async () => {
+  await assert.rejects(() => uploadPathsToJava(undefined, ['/a.xlsx']), /未提供文件上传能力/)
+})
+
+test('uploadPathsToJava 缺上传桥时 returnEmptyWhenUnavailable 返回空数组', async () => {
+  assert.deepEqual(await uploadPathsToJava(undefined, ['/a.xlsx'], { returnEmptyWhenUnavailable: true }), [])
+})