⚡ 优化应收合计查询并补充导出汇总

bms-back/bms-admin/src/main/java/com/bms/web/controller/receivable/ArBillController.java

@@ -173,10 +173,16 @@ public class ArBillController extends BaseController {
         AjaxResult result = success();
         result.put("rows", pageData.getRows());
         result.put("total", pageData.getTotal());
-        result.put("totalAmount", billService.sumPreviewBill(query));
         return result;
     }
 
+    /** 按需汇总生成预览范围内的应收金额。 */
+    @PreAuthorize("@ss.hasPermi('ar:bill:generate')")
+    @PostMapping("/generate/preview/amount")
+    public AjaxResult previewAmount(@RequestBody ArBillGenerateQuery query) {
+        return success(billService.sumPreviewBill(query));
+    }
+
     /** 按生成预览使用的相同筛选条件提交异步导出任务。 */
     @Log(title = "应收账单生成订单", businessType = BusinessType.EXPORT)
     @PreAuthorize("@ss.hasPermi('ar:bill:generate')")