Json.Net 中的私人二传手 [英] Private setters in Json.Net

问题描述

我知道有一个属性可以处理私有设置器，但我有点希望这种行为作为默认值，有没有办法做到这一点?除了调整源.如果有这个设置就好了.

I know there's an attribute to handle private setters but I kind of want this behavior as a default, is there a way to accomplish this? Except tweaking the source. Would be great if there was a setting for this.

推荐答案

更新，新答案

我为此编写了一个源代码分发 NuGet，它安装了一个带有两个自定义合同解析器的文件:

Updated, new answer

I've written a source distribution NuGet for this, that installs a single file with two custom contract resolvers:

• PrivateSetterContractResolver
• PrivateSetterCamelCasePropertyNamesContractResolver

安装 NuGet 包:

Install-Package JsonNet.ContractResolvers

然后只需使用任何解析器:

Then just use any of the resolvers:

var settings = new JsonSerializerSettings
{
    ContractResolver = new PrivateSetterContractResolver()
};

var model = JsonConvert.DeserializeObject<Model>(json, settings);

你可以在这里阅读:http://danielwertheim.se/json-net-private-setters-nuget/

GitHub 存储库:https://github.com/danielwertheim/jsonnet-privatesetterscontractresolvers

GitHub repo: https://github.com/danielwertheim/jsonnet-privatesetterscontractresolvers

有两种方法可以解决问题.

There are two alternatives that can solve the problem.

Alt 1:在反序列化器上

ContractResolver.DefaultMembersSearchFlags =
                             DefaultMembersSearchFlags | BindingFlags.NonPublic;

默认的序列化选项支持所有类型的类成员.因此，此解决方案将返回所有私有成员类型，包括字段.我只对支持私人二传手感兴趣.

The default serialization option supports all types of class member. Therefore this solution will return all private members types including fields. I'm only interested in also supporting private setters.

Alt2:创建自定义 ContractResolver:

因此这是更好的选择，因为我们只检查属性.

Therefore this is the better options since we just check the properties.

public class SisoJsonDefaultContractResolver : DefaultContractResolver 
{
    protected override JsonProperty CreateProperty(
        MemberInfo member,
        MemberSerialization memberSerialization)
    {
        //TODO: Maybe cache
        var prop = base.CreateProperty(member, memberSerialization);

        if (!prop.Writable)
        {
            var property = member as PropertyInfo;
            if (property != null)
            {
                var hasPrivateSetter = property.GetSetMethod(true) != null;
                prop.Writable = hasPrivateSetter;
            }
        }

        return prop;
    }
}

有关更多信息，请阅读我的帖子:http://danielwertheim.se/json-net-private-setters/

For more information, read my post: http://danielwertheim.se/json-net-private-setters/

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