// 新增
public JsonResultVo<?> create(@ApiIgnore @RequestAttribute(ConstVal.REQ_USER) BaseUser baseUser,
                                  @RequestBody IUTradeBuyPreserveVo iuTradeBuyPreserveVo) {
        //权限判断
        if (!baseCompanyService.dataPermission(baseUser, iuTradeBuyPreserveVo.getCompanyid(), Enums.SYSTEM_ID.XIANHUO)) {
            return JsonResultVo.failYThrowEx(Enums.RETCODE.TRADE_NO_DATA_RIGHT);
        }


        if (!tradeBuyPreserveService.save(iuTradeBuyPreserveVo)) {
            return ofRetFail(Enums.RETCODE.SQL_ERROR);
        } else {
            for (TradeBuyPreserveLine tradeBuyPreserveLine :
                    iuTradeBuyPreserveVo.getTradeBuyPreserveLineList()) {
                tradeBuyPreserveLine.setPreserveId(iuTradeBuyPreserveVo.getId());
                tradeBuyPreserveLineService.save(tradeBuyPreserveLine);
            }
            return JsonResultVo.success();
        }
    }

1. 黑马瑞吉外卖知识点：

黑马云岚到家 第二章 客户管理- 5实名认证没有开发！