ListCustomerProductOrderInfo orderList = customerProductOrderInfoServiceselectByCreditIditemgetId; 订单为一条时列表展示订单状态 if orderListsize == 1 orderListstreamfindAny

可以使用Optional的map方法来简化代码：

List orderList = customerProductOrderInfoService.selectByCreditId(item.getId()); // 订单为一条时列表展示订单状态 if (orderList.size() == 1) { item.setOrderStatus(orderList.stream() .map(x -> OrderStatus.getDescByCode(x.getOrderStatus())) .filter(Optional::isPresent) .map(Optional::get) .findFirst() .orElse(null)); }