确保 .NET 中的 json 键是小写的

You can create a custom contract resolver for this. The following contract resolver will convert all keys to lowercase:

public class LowercaseContractResolver : DefaultContractResolver
{
    protected override string ResolvePropertyName(string propertyName)
    {
        return propertyName.ToLower();
    }
}

用法:

var settings = new JsonSerializerSettings();
settings.ContractResolver = new LowercaseContractResolver();
var json = JsonConvert.SerializeObject(authority, Formatting.Indented, settings);

Wil result in:

{"username":"Mark","apitoken":"xyzABC1234"}

如果您总是希望使用LowercaseContractResolver进行序列化，请考虑将其封装在类中，以避免重复自己:

public class LowercaseJsonSerializer
{
    private static readonly JsonSerializerSettings Settings = new JsonSerializerSettings
    {
        ContractResolver = new LowercaseContractResolver()
    };

    public static string SerializeObject(object o)
    {
        return JsonConvert.SerializeObject(o, Formatting.Indented, Settings);
    }

    public class LowercaseContractResolver : DefaultContractResolver
    {
        protected override string ResolvePropertyName(string propertyName)
        {
            return propertyName.ToLower();
        }
    }
}

Which can be used like this:

var json = LowercaseJsonSerializer.SerializeObject(new { Foo = "bar" });
// { "foo": "bar" }

ASP.NET MVC4 / WebAPI

如果你正在使用ASP.NET MVC4/WebAPI，您可以使用Newtonsoft提供的CamelCasePropertyNamesContractResolver.默认情况下包含的Json库.