前端新增时会传值过来，设置电梯id为null，防止新增电梯主键重复

lift-business-service/src/main/java/cn/com/ty/lift/business/library/service/LiftService.java

@@ -289,6 +289,8 @@ public class LiftService extends ServiceImpl<LiftMapper, Lift> {
         }
         //新增标记 (0:新增,1:查询后带入)
         if ("0".equals(mark)) {
+            //前端新增时会传值过来，设置电梯id为null，防止新增电梯主键重复
+            lift.setId(null);
             //按当前日期时间戳自动生成电梯编号
             String liftCode = ApiConstants.STRAIGHT_LADDER + DateUtils.generateCode();
             if (CommonEnum.LiftType.STAIRCASE.getCode().equals(Objects.toString(lift.getLiftType()))) {