如何退出JSON合約解析器

Question

我們有一個Json.NET設置程序，它將合同解析器設置爲CamelCasePropertyNamesContractResolver。但是，對於某些類型，我想選擇退出camelCasing行爲。是否有可能通過某種方式註釋這些類型？

Answer 1

是的，截至Json.Net version 9.0.1（2016年6月），[JsonObject]和[JsonProperty]屬性均支持NamingStrategyType參數。因此，您可以使用CamelCasePropertyNamesContractResolver來設置默認的命名方案，但選擇退出或甚至將這些屬性更改爲使用特定類或屬性的不同策略。

這裏是一個簡短的演示：

public class Program 
{ 
    public static void Main(string[] args) 
    { 
     Foo foo = new Foo 
     { 
      CamelCasedProperty = "abc def", 
      AlsoCamelCasedButChildPropsAreNot = new Bar 
      { 
       SomeProperty = "fizz buzz", 
       AnotherProperty = "whiz bang" 
      }, 
      ThisOneOptsOutOfCamelCasing = "blah blah", 
      ThisOneIsSnakeCased = "senssssational" 
     }; 

     var settings = new JsonSerializerSettings 
     { 
      // set up default naming scheme 
      ContractResolver = new CamelCasePropertyNamesContractResolver(), 
      Formatting = Formatting.Indented 
     }; 

     string json = JsonConvert.SerializeObject(foo, settings); 
     Console.WriteLine(json); 
    } 
} 

class Foo 
{ 
    public string CamelCasedProperty { get; set; } 
    public Bar AlsoCamelCasedButChildPropsAreNot { get; set; } 

    [JsonProperty(NamingStrategyType = typeof(DefaultNamingStrategy))] 
    public string ThisOneOptsOutOfCamelCasing { get; set; } 

    [JsonProperty(NamingStrategyType = typeof(SnakeCaseNamingStrategy))] 
    public string ThisOneIsSnakeCased { get; set; } 
} 

[JsonObject(NamingStrategyType = typeof(DefaultNamingStrategy))] 
class Bar 
{ 
    public string SomeProperty { get; set; } 
    public string AnotherProperty { get; set; } 
} 

輸出：

{ 
    "camelCasedProperty": "abc def", 
    "alsoCamelCasedButChildPropsAreNot": { 
    "SomeProperty": "fizz buzz", 
    "AnotherProperty": "whiz bang" 
    }, 
    "ThisOneOptsOutOfCamelCasing": "blah blah", 
    "this_one_is_snake_cased": "senssssational" 
} 

小提琴：