/// <summary>
/// 序列化JSON字符串不附带值为NULL的字符串
/// </summary>
/// <param name="jsonData"></param>
/// <param name="contractResolverType"></param>
/// <returns></returns>
public static string ToJsonWithOutNull(this object jsonData,
ContractResolverType contractResolverType = ContractResolverType.CamelCase)
{
return(JsonConvert.SerializeObject(jsonData, new JsonSerializerSettings
{
ContractResolver = GetContractResolver(contractResolverType),
NullValueHandling = NullValueHandling.Ignore
}));
}
/// <summary>
/// 将对象转换为Json字符串
/// </summary>
/// <param name="jsonData"></param>
/// <param name="contractResolverType"></param>
/// <returns></returns>
public static string ToJson(this object jsonData,
ContractResolverType contractResolverType = ContractResolverType.CamelCase)
{
return(JsonConvert.SerializeObject(jsonData, new JsonSerializerSettings
{
ContractResolver = GetContractResolver(contractResolverType),
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
}));
}
/// <summary>
/// 获取IContractResolver
/// </summary>
/// <param name="contractResolverType"></param>
/// <returns></returns>
private static IContractResolver GetContractResolver(ContractResolverType contractResolverType)
{
switch (contractResolverType)
{
case ContractResolverType.Default:
return(DefaultContractResolver);
case ContractResolverType.CamelCase:
return(CamelCasePropertyNamesContractResolver);
default:
return(DefaultContractResolver);
}
}
/// <summary>
/// Returns the JsonMediaTypeFormatter to use with this controller.
/// </summary>
/// <param name="resolverType">
/// A ContractResolverType representing the desired behavior of serializationProperties, OptIn or OptOut.
/// </param>
/// <param name="properties">
/// A list of properties to exclude or include, depending on the ContractResolverType, in the serialized result.
/// </param>
/// <returns>A configured instance of JsonMediaTypeFormatter</returns>
protected JsonMediaTypeFormatter JsonFormatter(ContractResolverType resolverType, params string[] properties)
{
JsonMediaTypeFormatter retVal = new JsonMediaTypeFormatter
{
SerializerSettings = new JsonSerializerSettings
{
DateFormatHandling = DateFormatHandling.MicrosoftDateFormat,
DateTimeZoneHandling = DateTimeZoneHandling.Utc,
Formatting = Formatting.Indented,
ContractResolver = new ContractResolver(resolverType, properties),
},
};
retVal.SerializerSettings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
return(retVal);
}
/// <summary>
/// Initializes a new instance of the <see cref="ContractResolver"/> class with the supplied properties list, resolver
/// type and includeSecondaryTypes value.
/// </summary>
/// <param name="resolverType">
/// The type of contract resolver; determines whether the supplied list will be included or excluded from serialization.
/// </param>
/// <param name="properties">A list of properties to include or exclude from serialization.</param>
public ContractResolver(ContractResolverType resolverType, params string[] properties)
: base()
{
Properties = properties;
ResolverType = resolverType;
}
