库存预警数值不展示修复

eladmin-system/src/main/java/cn/ysk/cashier/controller/product/StockController.java

@@ -106,7 +106,8 @@ public class StockController {
         if (stockV2Vos.getContent().isEmpty()) {
             dataMap.put("warnLine", 0);
         }else {
-            dataMap.put("warnLine", stockV2Vos.getContent().get(0).getWarnLine());
+            StockV2Vo stockV2Vo = stockV2Vos.getContent().stream().filter(item -> item.getWarnLine() != null).findFirst().orElse(null);
+            dataMap.put("warnLine", stockV2Vo != null ? stockV2Vo.getWarnLine() : 0);
         }
         return new ResponseEntity<>(dataMap, HttpStatus.OK);
     }