使用Json.net进行序列化时，如何更改属性名称？
本文翻译自：How can I change property names when serializing with Json.net?
I have some data in a C# DataSet object. 我在C＃DataSet对象中有一些数据。 I can serialize it right now using a Json.net converter like this 我现在可以使用像这样的Json.net转换器序列化它
DataSet data = new DataSet();
// do some work here to populate 'data'
string output = JsonConvert.SerializeObject(data);
However, this uses the property names from data when printing to the .json file. 但是，这将在打印到.json文件时使用data的属性名称。 I would like to change the property names to be something different (say, change 'foo' to 'bar'). 我想将属性名称更改为其他名称（例如，将“ foo”更改为“ bar”）。
In the Json.net documentation , under 'Serializing and Deserializing JSON' → 'Serialization Attributes' it says "JsonPropertyAttribute... allows the name to be customized". 在Json.net文档中的 “对JSON进行序列化和反序列化”→“序列化属性”下，其显示为“ JsonPropertyAttribute ...允许自定义名称”。 But there is no example. 但是没有例子。 Does anyone know how to use a JsonPropertyAttribute to change the property name to something else? 有谁知道如何使用JsonPropertyAttribute将属性名称更改为其他名称？
( Direct link to documentation ) （ 直接链接到文档 ）
Json.net's documentation seems to be sparse. Json.net的文档似乎很少。 If you have a great example I'll try to get it added to the official documentation. 如果您有一个很好的例子，我将尝试将其添加到官方文档中。 Thanks! 谢谢！
#1楼
参考：https://stackoom.com/question/auOw/使用Json-net进行序列化时-如何更改属性名称
#2楼
If you don't have access to the classes to change the properties, or don't want to always use the same rename property, renaming can also be done by creating a custom resolver. 如果您无权访问用于更改属性的类，或者不想始终使用相同的重命名属性，则也可以通过创建自定义解析程序来重命名。
For example, if you have a class called MyCustomObject , that has a property called LongPropertyName , you can use a custom resolver like this… 例如，如果您有一个名为MyCustomObject的类，该类具有一个名为LongPropertyName的属性，则可以使用这样的自定义解析器…
public class CustomDataContractResolver : DefaultContractResolver
{
public static readonly CustomDataContractResolver Instance = new CustomDataContractResolver ();
protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
{
var property = base.CreateProperty(member, memberSerialization);
if (property.DeclaringType == typeof(MyCustomObject))
{
if (property.PropertyName.Equals("LongPropertyName", StringComparison.OrdinalIgnoreCase))
{
property.PropertyName = "Short";
}
}
return property;
}
}
Then call for serialization and supply the resolver: 然后调用序列化并提供解析器：
var result = JsonConvert.SerializeObject(myCustomObjectInstance,
new JsonSerializerSettings { ContractResolver = CustomDataContractResolver.Instance });
And the result will be shortened to {"Short":"prop value"} instead of {"LongPropertyName":"prop value"} 并且结果将缩短为{“ Short”：“ prop value”}而不是{“ LongPropertyName”：“ prop value”}
More info on custom resolvers here 有关自定义解析器的更多信息，请点击此处
#3楼
There is still another way to do it, which is using a particular NamingStrategy , which can be applied to a class or a property by decorating them with [JSonObject] or [JsonProperty] . 还有另一种方法，使用特定的NamingStrategy ，可以通过使用[JSonObject]或[JsonProperty]装饰它们来将其应用于类或属性。
There are predefined naming strategies like CamelCaseNamingStrategy , but you can implement your own ones. 有一些预定义的命名策略，例如CamelCaseNamingStrategy ，但是您可以实现自己的命名策略。
The implementation of different naming strategies can be found here: https://github.com/JamesNK/Newtonsoft.Json/tree/master/Src/Newtonsoft.Json/Serialization 可以在这里找到不同命名策略的实现： https : //github.com/JamesNK/Newtonsoft.Json/tree/master/Src/Newtonsoft.Json/Serialization
#4楼
You could decorate the property you wish controlling its name with the [JsonProperty] attribute which allows you to specify a different name: 您可以使用[JsonProperty]属性装饰希望控制其名称的属性，该属性允许您指定其他名称：
using Newtonsoft.Json;
// ...
[JsonProperty(PropertyName = "FooBar")]
public string Foo { get; set; }
Documentation: Serialization Attributes 文档： 序列化属性