bug修改

bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/screening/service/DataScreeningServiceImpl.java

@@ -115,6 +115,11 @@ public class DataScreeningServiceImpl implements DataScreeningService {
             case DISH:
                 //查询所有绑定的菜谱
                 List<String> recipeIds = mapper.selectAllRecipeIds();
+                if(recipeIds.isEmpty()){
+                    SingleModelVO singleModelVO = new SingleModelVO();
+                    singleModelVO.setNum(BigDecimal.ZERO);
+                    return singleModelVO;
+                }
                 return mapper.selectDish(date,recipeIds);
             default:
                 return new SingleModelVO();