如何在JSON.NET中unescape unicode

Posted 2021-05-05

我有像Jazxswpoi这样的Unicode部件的JSON如何将其转换为没有Unicode格式的JSON？ { "val1": "u003c=AA+ u003e=AA-"}

答案

Json.NET unescape在{"val1": "<=AA+ >=AA-"}中的Unicode序列，所以你可以采用JsonTextReader用this answer和How do I get formatted JSON in .NET using C#?相同的方法来重新格式化你的JSON，而不需要通过使用Duncan Smart从JsonTextReader直接流式传输到JsonTextWriter而不必要的转义：

JsonWriter.WriteToken(JsonReader)

使用此方法，以下代码：

public static partial class JsonExtensions
{
    // Adapted from this answer https://stackoverflow.com/a/30329731
    // To https://stackoverflow.com/q/2661063
    // By Duncan Smart https://stackoverflow.com/users/1278/duncan-smart

    public static string JsonPrettify(string json, Formatting formatting = Formatting.Indented)
    {
        using (var stringReader = new StringReader(json))
        using (var stringWriter = new StringWriter())
        {
            return JsonPrettify(stringReader, stringWriter, formatting).ToString();
        }
    }

    public static TextWriter JsonPrettify(TextReader textReader, TextWriter textWriter, Formatting formatting = Formatting.Indented)
    {
        // Let caller who allocated the the incoming readers and writers dispose them also
        // Disable date recognition since we're just reformatting
        using (var jsonReader = new JsonTextReader(textReader) { DateParseHandling = DateParseHandling.None, CloseInput = false })
        using (var jsonWriter = new JsonTextWriter(textWriter) { Formatting = formatting, CloseOutput = false })
        {
            jsonWriter.WriteToken(jsonReader);
        }
        return textWriter;
    }
}

输出

var json = @"{ ""val1"": ""u003c=AA+ u003e=AA-""}";
var unescapedJson = JsonExtensions.JsonPrettify(json, Formatting.None);
Console.WriteLine("Unescaped JSON: {0}", unescapedJson);

演示小提琴Unescaped JSON: {"val1":"<=AA+ >=AA-"} 。

另一答案

我在Linqpad中尝试了以下内容并且它有效。

here