✨ 新增应收账单生成预览结果导出

bms-front/src/views/ar/bill/components/GenerateBillDialog.vue

@@ -28,6 +28,7 @@
       <div class="preview-toolbar">
         <span v-if="previewSearched" class="preview-summary">可选 {{ previewTotal }} 条订单，已选 <b>{{ displaySelectedCount }}</b> 条，应收合计 <b>{{ money(displaySelectedAmount) }}</b></span>
         <span v-else class="preview-summary">请选择客户、币种和账单截止日后查询可生成的计费订单</span>
+        <el-button v-if="previewSearched && previewTotal > 0" :icon="Download" :loading="previewExportLoading" :disabled="previewLoading" @click="exportPreview">导出查询结果</el-button>
         <el-button type="primary" plain :loading="previewLoading" :disabled="!bankAccount" @click="queryGeneratePreview">查询</el-button>
       </div>
       <div v-if="previewSearched" class="preview-selection-toolbar">
@@ -147,7 +148,7 @@
 
 <script setup name="GenerateBillDialog">
 import { listArBillGenerateCustomerOptions, getDefaultArBankAccount, previewArBill, previewExcludedArBill, generateArBill } from '@/api/ar/bill'
-import { Refresh, Search, Select } from '@element-plus/icons-vue'
+import { Download, Refresh, Search, Select } from '@element-plus/icons-vue'
 import { AR_BILL_SELECTION_MODE } from '@/constants/ar/enums'
 
 const props = defineProps({
@@ -166,6 +167,7 @@ const dialogOpen = computed({
 const billNameOpen = ref(false)
 const generateLoading = ref(false)
 const previewLoading = ref(false)
+const previewExportLoading = ref(false)
 const previewSearched = ref(false)
 const previewRows = ref([])
 const previewTotal = ref(0)
@@ -347,6 +349,15 @@ function handlePreviewPageChange(page) {
   fetchPreview()
 }
 
+function exportPreview() {
+  if (!previewSearched.value || !previewTotal.value || !previewQuery.value || previewExportLoading.value) return
+  previewExportLoading.value = true
+  proxy.download('/ar/bill/generate/preview/export', { ...previewQuery.value }, `ar_bill_generate_preview_${Date.now()}.xlsx`)
+    .finally(() => {
+      previewExportLoading.value = false
+    })
+}
+
 // 当前页变化只更新当前页 ID，selectedRowMap 因此可以跨页保留手动选择。
 function handleSelectionChange(rows) {
   if (syncingPageSelection || selectionMode.value === AR_BILL_SELECTION_MODE.ALL_MATCHED) return