Newtonsoft.Json 指定某个属性使用特定的时间格式

╰半夏微凉° 2021-12-11 01:19 91阅读 0赞

# `Newtonsoft.Json` 指定某个属性使用特定的时间格式 #

## Intro ##

`Newtonsoft.Json` 是 .NET 下最受欢迎 JSON 操作库，原为 `JSON.Net` 后改名为 `Newtonsoft.Json`，之前一直推荐大家使用，除了性能好之外，主要是功能丰富，基本满足所有的可能用到的场景（不区分小写，现在还不行，，）。

遇到这样一个需求，全局使用一种时间格式，某些属性使用特殊的时间格式，这里以一个日期为例

## Solution ##

解决办法：自定义一个 Converter，针对某一个属性使用，[DateTimeFormatConverter源码][DateTimeFormatConverter]:

using Newtonsoft.Json.Converters; namespace WeihanLi.Common.Json { public class DateTimeFormatConverter : IsoDateTimeConverter { public DateTimeFormatConverter(string format) { DateTimeFormat = format; } } }

在需要设置格式的属性上设置 Converter [https://github.com/WeihanLi/ActivityReservation/blob/dev/ActivityReservation.Helper/ViewModels/ReservationViewModel.cs\#L8][https_github.com_WeihanLi_ActivityReservation_blob_dev_ActivityReservation.Helper_ViewModels_ReservationViewModel.cs_L8]

[Display(Name = "预约日期")] [JsonConverter(typeof(DateTimeFormatConverter), "yyyy-MM-dd")] public DateTime ReservationForDate { get; set; }

请求 api 地址 [https://reservation.weihanli.xyz/api/Reservation?pageNumber=1&pageSize=5][https_reservation.weihanli.xyz_api_Reservation_pageNumber_1_pageSize_5],返回的数据如下所示：

{
        "Data": [
            {
                "ReservationForDate": "2019-06-10",
                "ReservationForTime": "08:00~09:50",
                "ReservationPersonPhone": "123****0112",
                "ReservationPersonName": "儿**",
                "ReservationUnit": "51",
                "ReservationPlaceName": "多媒体工作室",
                "ReservationActivityContent": "62",
                "ReservationId": "f7ab9128-0977-4fd8-9b1a-92648228b397",
                "ReservationTime": "2019-06-09 05:19:11",
                "ReservationStatus": 1
            },
            {
                "ReservationForDate": "2019-06-12",
                "ReservationForTime": "10:00-12:00",
                "ReservationPersonPhone": "133****3541",
                "ReservationPersonName": "试**",
                "ReservationUnit": "ss",
                "ReservationPlaceName": "多媒体工作室",
                "ReservationActivityContent": "ss",
                "ReservationId": "6c145aea-dc14-4ed9-a47f-48c0b79f7601",
                "ReservationTime": "2019-06-11 12:45:14",
                "ReservationStatus": 0
            },
            {
                "ReservationForDate": "2019-06-17",
                "ReservationForTime": "14:00-16:00",
                "ReservationPersonPhone": "138****3883",
                "ReservationPersonName": "大**",
                "ReservationUnit": "1",
                "ReservationPlaceName": "多媒体工作室",
                "ReservationActivityContent": "1",
                "ReservationId": "cebea7bf-44b1-4565-8cdd-78b6156c5f4d",
                "ReservationTime": "2019-06-10 02:52:18",
                "ReservationStatus": 1
            },
            {
                "ReservationForDate": "2019-06-17",
                "ReservationForTime": "08:00-10:00",
                "ReservationPersonPhone": "132****4545",
                "ReservationPersonName": "冷**",
                "ReservationUnit": "技术部",
                "ReservationPlaceName": "多媒体工作室",
                "ReservationActivityContent": "技术部培训",
                "ReservationId": "07f6f8fd-f232-478e-9a94-de0f5fa9b4e9",
                "ReservationTime": "2019-06-10 01:44:52",
                "ReservationStatus": 2
            },
            {
                "ReservationForDate": "2019-06-22",
                "ReservationForTime": "10:00~11:50",
                "ReservationPersonPhone": "132****3333",
                "ReservationPersonName": "测**",
                "ReservationUnit": "测试",
                "ReservationPlaceName": "多媒体工作室",
                "ReservationActivityContent": "测试",
                "ReservationId": "27d0fb7a-ce14-4958-8636-dd10e5526083",
                "ReservationTime": "2019-06-18 10:57:06",
                "ReservationStatus": 1
            }
        ],
        "PageNumber": 1,
        "PageSize": 5,
        "TotalCount": 18,
        "PageCount": 4,
        "Count": 5
    }

可以看到 `ReservationForDate` 序列化之后返回的格式如我们指定的格式了~

转载于:https://www.cnblogs.com/weihanli/p/11080531.html

[DateTimeFormatConverter]: https://github.com/WeihanLi/WeihanLi.Common/blob/dev/src/WeihanLi.Common/Json/DateTimeFormatConverter.cs
[https_github.com_WeihanLi_ActivityReservation_blob_dev_ActivityReservation.Helper_ViewModels_ReservationViewModel.cs_L8]: https://github.com/WeihanLi/ActivityReservation/blob/dev/ActivityReservation.Helper/ViewModels/ReservationViewModel.cs#L8
[https_reservation.weihanli.xyz_api_Reservation_pageNumber_1_pageSize_5]: https://reservation.weihanli.xyz/api/Reservation?pageNumber=1&pageSize=5