feat: 将入库汇总导出从本地 xlsx 重构为后端异步轮询模式（submitExportTask + checkExportStatus）

inventory-web/src/api/inbound/inbound_summary.ts

@@ -17,11 +17,43 @@ export function getInboundSummaryList(params: InboundSummaryQuery) {
     })
 }
 
-export function exportInboundSummary(params: any) {
+// ============================================================
+// 旧版：前端直接处理 Excel blob（已废弃，保留用于参考）
+// ============================================================
+// export function exportInboundSummary(params: any) {
+//     return request({
+//         url: '/v1/inbound/summary/export',
+//         method: 'get',
+//         params,
+//         responseType: 'blob'
+//     })
+// }
+
+// ============================================================
+// 新版：异步导出 API（后端生成 + 轮询任务状态）
+// ============================================================
+
+/**
+ * 提交异步导出任务
+ * POST /api/v1/export/inventory
+ * 返回 { task_id: string }
+ */
+export function submitExportTask(filters: Record<string, any>) {
     return request({
-        url: '/v1/inbound/summary/export',
-        method: 'get',
-        params,
-        responseType: 'blob'
+        url: '/v1/export/inventory',
+        method: 'post',
+        data: filters
+    })
+}
+
+/**
+ * 轮询导出任务状态
+ * GET /api/v1/export/status/<taskId>
+ * 返回 { status: 'processing'|'completed'|'failed', progress: number, url: string, error: string }
+ */
+export function checkExportStatus(taskId: string) {
+    return request({
+        url: `/v1/export/status/${taskId}`,
+        method: 'get'
     })
 }

inventory-web/src/views/stock/inbound/inbound_summary.vue

@@ -104,9 +104,9 @@
 
 <script setup lang="ts">
 import { ref, reactive, onMounted } from 'vue'
-import { getInboundSummaryList, exportInboundSummary } from '@/api/inbound/inbound_summary'
+import { getInboundSummaryList, submitExportTask, checkExportStatus } from '@/api/inbound/inbound_summary'
 import { useUserStore } from '@/stores/user'
-import { ElMessage } from 'element-plus'
+import { ElMessage, ElLoading } from 'element-plus'
 
 const userStore = useUserStore()
 
@@ -153,45 +153,83 @@ const handleFilter = () => {
   fetchData()
 }
 
-// 导出 Excel
+// 导出 Excel（异步轮询模式，后端生成文件后下载）
 const handleExport = () => {
-  exportLoading.value = true
-  const params = {
+  // 如果已有任务在执行中，跳过
+  if (exportLoading.value) return
+
+  // 第一步：构造过滤参数，提交导出任务
+  const filters = {
     keyword: listQuery.keyword,
     source_type: listQuery.source_type,
     start_date: listQuery.dateRange ? listQuery.dateRange[0] : null,
     end_date: listQuery.dateRange ? listQuery.dateRange[1] : null
   }
 
-  exportInboundSummary(params)
-    .then((response: any) => {
-      const blob = new Blob([response], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
-      const url = window.URL.createObjectURL(blob)
-      const link = document.createElement('a')
-      link.href = url
+  // 开启全屏 Loading，防止用户重复点击
+  const loadingInstance = ElLoading.service({
+    text: '正在后台生成报表，请稍候...',
+    background: 'rgba(0, 0, 0, 0.6)'
+  })
 
-      const now = new Date()
-      const year = now.getFullYear()
-      const month = String(now.getMonth() + 1).padStart(2, '0')
-      const day = String(now.getDate()).padStart(2, '0')
-      const hour = String(now.getHours()).padStart(2, '0')
-      const minute = String(now.getMinutes()).padStart(2, '0')
-      const second = String(now.getSeconds()).padStart(2, '0')
-      const filename = `入库记录_${year}${month}${day}_${hour}${minute}${second}.xlsx`
+  submitExportTask(filters)
+    .then((res: any) => {
+      const taskId: string = res.data?.task_id
+      if (!taskId) {
+        ElMessage.error('任务提交失败，未获取到 task_id')
+        loadingInstance.close()
+        return
+      }
 
-      link.setAttribute('download', filename)
-      document.body.appendChild(link)
-      link.click()
-      document.body.removeChild(link)
-      window.URL.revokeObjectURL(url)
-      ElMessage.success('导出成功')
+      // 第二步：轮询任务状态，每 1.5 秒查一次
+      const POLL_INTERVAL_MS = 1500
+      const timer = setInterval(() => {
+        checkExportStatus(taskId)
+          .then((statusRes: any) => {
+            const statusData = statusRes.data || {}
+            const { status, progress, url, error } = statusData
+
+            // 动态更新 Loading 文字，显示当前进度
+            if (progress != null) {
+              loadingInstance.setText(`正在生成报表... ${progress}%`)
+            }
+
+            if (status === 'completed') {
+              // 第三步：完成 → 停止轮询，关闭 Loading，触发下载
+              clearInterval(timer)
+              loadingInstance.close()
+
+              // 拼接完整下载地址（Vite 代理已配置 /api -> 后端）
+              const baseUrl = import.meta.env.VITE_API_BASE_URL || window.location.origin
+              const downloadUrl = url.startsWith('http') ? url : `${baseUrl}${url}`
+
+              // 动态创建 <a> 标签触发浏览器下载
+              const link = document.createElement('a')
+              link.href = downloadUrl
+              link.setAttribute('download', '')  // 让浏览器自动从 Content-Disposition 取文件名
+              link.style.display = 'none'
+              document.body.appendChild(link)
+              link.click()
+              document.body.removeChild(link)
+
+              ElMessage.success('报表已生成，正在下载')
+            } else if (status === 'failed') {
+              // 失败 → 停止轮询，关闭 Loading，弹出错误原因
+              clearInterval(timer)
+              loadingInstance.close()
+              ElMessage.error(`生成失败：${error || '未知错误'}`)
+            }
+            // processing → 继续轮询，不做任何操作
+          })
+          .catch(() => {
+            // 网络错误时继续轮询，不中断流程
+          })
+      }, POLL_INTERVAL_MS)
     })
     .catch((err: any) => {
-      console.error('导出失败', err)
-      ElMessage.error('导出失败')
-    })
-    .finally(() => {
-      exportLoading.value = false
+      console.error('提交导出任务失败', err)
+      loadingInstance.close()
+      ElMessage.error('提交导出任务失败')
     })
 }