使用JSON.Net序列化数据的问题 [英] Issue with serializing data using JSON.Net
问题描述
我在我的应用程序中使用Kendo Scheduler,以使用Web Api从数据库中提取数据.我创建了一个Web Api函数,并对其中的一些数据进行了硬编码,以确保Kendo Scheduler可以读取我的数据.这是我的Api函数代码:
I am using a Kendo Scheduler in my app to pull data from my database using a Web Api. I created a Web Api function and just hard coded some data in there to be sure the Kendo Scheduler could read my data. Here is my code for the Api function:
[Route("api/v1/Events/GetPersonalEvents", Name = "ApiEventsGetPersonalEvents")]
[HttpGet]
public DataSourceResult GetPersonalEvents([System.Web.Http.ModelBinding.ModelBinder(typeof(WebApiDataSourceRequestModelBinder))]DataSourceRequest request)
{
var q = new ViewModels.Events.EventViewModel();
q.Id = 1;
q.Title = "This is a test";
q.Start = DateTime.Now;
q.End = DateTime.Now.AddHours(1);
q.Description = "Test entry";
var list = new List<ViewModels.Events.EventViewModel>();
list.Add(q);
return list.ToDataSourceResult(request);
}
Kendo Scheduler在日历上未显示任何内容.使用Fiddler,我可以看到Kendo Scheduler正在调用我的API,而我的API正在返回数据.这是要发送的JSON:
The Kendo Scheduler was not showing anything on the calendar. Using Fiddler, I was able to see that Kendo Scheduler was calling my API and my API was returning data. Here is the JSON getting sent:
{
"data":[
{
"id":1,
"title":"This is a test",
"description":"Test entry",
"isAllDay":false,
"start":"2016-11-18T15:31:33.1173519-08:00",
"end":"2016-11-18T16:31:33.1178524-08:00",
"startTimezone":null,
"endTimezone":null,
"recurrenceRule":null,
"recurrenceException":null
}
],
"total":1,
"aggregateResults":null,
"errors":null
}
一切似乎都正常.经过进一步调查,我终于弄清楚了我的问题.在我的global.asax.cs
文件中,这些行如下:
Everything seemed to be working fine. Upon further investigation, I finally figured out my issue. In my global.asax.cs
file I have these lines:
HttpConfiguration config = GlobalConfiguration.Configuration;
config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
config.Formatters.JsonFormatter.UseDataContractJsonSerializer = false;
这是什么导致JSON.Net自动将C#名称转换为对Javascript友好的名称(例如Title
变为title
,Description
变为description
等),这就是我想.但是,剑道显然要求其名称类似于C#(例如Title
而不是title
).我通过注释global.asax.cs
文件中的那三行来验证这一点,一切正常.
What this does is it causes JSON.Net to automatically convert C# names to Javascript-friendly names (e.g. Title
becomes title
, Description
becomes description
, etc...), which is what I want. However, Kendo, apparently, requires the names to be like C# (e.g. Title
instead of title
). I verified this by commenting out those three lines in my global.asax.cs
file and everything worked fine.
所以,然后我将注意力转向了我的ViewModel.我用JsonProperty
属性装饰了我的属性,并指定了一个特定的名称.但是,它仍被序列化为小写名称.这是视图模型代码:
So, then I turned my attention to my ViewModel. I decorated my properties with the JsonProperty
attribute, specifying a specific name. However, it's still being serialized as lower case names. Here is the view model code:
public class EventViewModel : ISchedulerEvent
{
[JsonProperty(PropertyName = "Id")]
public int Id { get; set; }
[JsonProperty(PropertyName = "Title")]
public string Title { get; set; }
[JsonProperty(PropertyName = "Description")]
public string Description { get; set; }
[JsonProperty(PropertyName = "IsAllDay")]
public bool IsAllDay { get; set; }
[JsonProperty(PropertyName = "Start")]
public DateTime Start { get; set; }
[JsonProperty(PropertyName = "End")]
public DateTime End { get; set; }
[JsonProperty(PropertyName = "StartTimezone")]
public string StartTimezone { get; set; }
[JsonProperty(PropertyName = "EndTimezone")]
public string EndTimezone { get; set; }
[JsonProperty(PropertyName = "RecurrenceRule")]
public string RecurrenceRule { get; set; }
[JsonProperty(PropertyName = "RecurrenceException")]
public string RecurrenceException { get; set; }
}
所以现在我没主意了.因此,有没有一种方法可以使Json.Net仅为此方法正确地序列化我的名称,或者是否可以在我的视图模型中使用其他属性来使名称正确序列化,或者Kendo中是否有设置会允许剑道使用驼峰式保护套格式?
So now I am out of ideas. So is there a way to either a way to make Json.Net serialize my names properly JUST for this one method or is there some other attribute I can use in my view model to make the names serialize correctly or is there a setting in Kendo that would allow Kendo to use the camel case format?
推荐答案
如果您使用的是Json.NET 9.0.1或更高版本,则可以指定 [JsonObject(NamingStrategyType = typeof(TNamingStrategy))]
.这将覆盖CamelCasePropertyNamesContractResolver
的命名策略.在您的情况下,您需要 DefaultNamingStrategy
:
If you are using Json.NET 9.0.1 or later, you can specify a naming strategy for a specific type by marking it with [JsonObject(NamingStrategyType = typeof(TNamingStrategy))]
. This overrides the naming strategy of CamelCasePropertyNamesContractResolver
. In your case you want DefaultNamingStrategy
:
[JsonObject(NamingStrategyType = typeof(DefaultNamingStrategy))]
public class EventViewModel
{
public int Id { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public bool IsAllDay { get; set; }
public DateTime Start { get; set; }
public DateTime End { get; set; }
public string StartTimezone { get; set; }
public string EndTimezone { get; set; }
public string RecurrenceRule { get; set; }
public string RecurrenceException { get; set; }
}
请注意,不再需要[JsonProperty("name")]
属性.
Note that the [JsonProperty("name")]
attributes are no longer needed.
在您的全球合同解析器中,还有一个属性 NamingStrategy
.将 NamingStrategy.OverrideSpecifiedNames
设置为false
也会阻止[JsonProperty("name")]
名称不被全球覆盖.对于CamelCasePropertyNamesContractResolver
,似乎默认值为true
,这是导致问题的原因.
On your global contract resolver, there is also a property NamingStrategy
. Setting NamingStrategy.OverrideSpecifiedNames
to false
also prevents [JsonProperty("name")]
names from being overridden globally. For CamelCasePropertyNamesContractResolver
it seems the default is true
, which is the cause of your problem.
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