fix default

@@ -195,7 +195,7 @@ public class OrderDbDTO {
     private Boolean shouldCreateOpenId;
 
     @ApiModelProperty(value = "阳光厅点餐客户 ID")
-    private String openId = "";
+    private String openId;
 
     @ApiModelProperty(value = "状态订单；待备餐=1，备餐中=2，部分出餐=3，已出餐=4，已取消=5")
     private Integer status;
@@ -207,7 +207,7 @@ public class OrderDbDTO {
     private Integer totalNum;
 
     @ApiModelProperty(value = "实际支付金额，单位为分")
-    private Integer payPrice = 0;
+    private Integer payPrice;
 
     @ApiModelProperty(value = "是否在线付费；0=未付费，1=付费")
     private Boolean onlinePay;

@@ -76,6 +76,7 @@ public class OrderServiceImpl implements OrderService {
     CreateOrderDto createOrderDto = new CreateOrderDto();
     createOrderDto.setShouldCreateCustomerId(true);
     createOrderDto.setShouldCreateOpenId(false);
+    createOrderDto.setOpenId("");
     createOrderDto.setCustomerId(operatorCreateOrderDto.getCustomerId());
     createOrderDto.setStallId(operatorCreateOrderDto.getStallId());
     createOrderDto.setMenuId(operatorCreateOrderDto.getMenuId());
@@ -84,6 +85,7 @@ public class OrderServiceImpl implements OrderService {
     createOrderDto.setCreatedBy(operatorLoginInfo.getId());
     createOrderDto.setClientId(customer.getClientId());
     createOrderDto.setAddress(record.getDepartmentName() + record.getRoomNo());
+    createOrderDto.setPayPrice(0);
     final var menu = menuServiceRpcClient.getMenuById(operator.getEnterpriseId(),
         createOrderDto.getMenuId()).getResponse();
     createOrderDto.setCloseTimeType(