我怎么能告诉Json.NET忽略第三方对象的属性？ [英] How can I tell Json.NET to ignore properties in a 3rd-party object?

问题描述

的Json.NET文档说，你用 JsonIgnore 来在你的类不序列的某些属性：

The Json.NET documentation says you use JsonIgnore to not serialize certain properties in your classes:

public class Account
{
    public string FullName { get; set; }
    public string EmailAddress { get; set; }

    [JsonIgnore]
    public string PasswordHash { get; set; }
}

我怎样才能让Json.NET序列化3rd-时忽略特定属性与 JsonConvert.SerializeObject ？

推荐答案

请自定义合同解析

public class ShouldSerializeContractResolver : DefaultContractResolver
{
    public new static readonly ShouldSerializeContractResolver Instance = new ShouldSerializeContractResolver();


    protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
    {
        JsonProperty property = base.CreateProperty(member, memberSerialization);
        if (property.DeclaringType == typeof(Account) && property.PropertyName == "PasswordHash")
        {
            property.Ignored = true;
        }
        return property;
    }
}

如何测试：

        var account = new Account
        {
            PasswordHash = "XXAABB"
        };
        var settings = new JsonSerializerSettings
        {
            ContractResolver = ShouldSerializeContractResolver.Instance
        };
        var json = JsonConvert.SerializeObject(account, settings);
        Console.WriteLine(json);

这篇关于我怎么能告诉Json.NET忽略第三方对象的属性？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！