List集合对象根据字段倒叙排序

订单展示时展示2中状态订单并按创建订单的时间倒叙排序

用java8性特性解决很简单

1    orderDTO.setStatus(BaseConstant.NEW_ORDER);
2         List<OrderDTO> orders=orderMapper.selectAll(orderDTO);
3         orderDTO.setStatus(BaseConstant.NOT_ACCEPT_STATUS);
4         List<OrderDTO> order=orderMapper.selectAll(orderDTO);
5         order.addAll(orders);
6         List<OrderDTO> collect = order.stream().sorted(Comparator.comparing(OrderDTO::getOrderTime).reversed()).collect(Collectors.toList());
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posted @ 2020-10-23 13:24  keryy  阅读(3275)  评论(0)    收藏  举报