在Json反序列化过程中解码HTML编码的字符 [英] Decode Html-encoded characters during Json deserialization

问题描述

我正在使用Json.net反序列化Web API调用接收到的json数据.有些字段通常具有html编码的字符，例如"或&，如何在反序列化期间自动解码此字符?

I’m using Json.net to deserialize json data received by Web API call. Some fields often have html-encoded characters like " or & How can I have this characters automatically decoded during deserialization?

我提出了两种可能的解决方案:

I came to 2 possible solutions:

1. 在属性设置器中调用System.Web.HttpUtility.HtmlDecode()，例如:

public string Title
{
    set
    {
        title = System.Web.HttpUtility.HtmlDecode(value);
    }
}

编写自定义的JsonConverter，该自定义JsonConverter在ReadJson()方法中调用System.Web.HttpUtility.HtmlDecode():

Writing custom JsonConverter that calls System.Web.HttpUtility.HtmlDecode() in ReadJson() method:

public class HtmlEncodingConverter : Newtonsoft.Json.JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        return objectType == typeof(String);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        return System.Web.HttpUtility.HtmlDecode((string)reader.Value);
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        writer.WriteRawValue(System.Web.HttpUtility.HtmlEncode((string)value));
    }
}

但是有没有内置的解决方案可以在json反序列化期间执行html解码而无需其他代码?

But is there any built-in solution that allows to perform html-decoding during json deserialization without additional code?

推荐答案

System.Net.WebUtility.HtmlDecode()

或

HttpUtility.HtmlDecode()

是必经之路，关于JsonSerializer的内容没有内置.

is the way to go, nothing built in regarding the JsonSerializer.

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