dotnet core System.Text.Json unescape unicode 字符串

发布于09月19日

使用JsonSerializer.Serialize(obj)将生成一个转义字符串，但我想要未转义的版本.例如:

using System;
using System.Text.Json;

public class Program
{
    public static void Main()
    {
        var a = new A{Name = "你好"};
        var s = JsonSerializer.Serialize(a);
        Console.WriteLine(s);
    }
}

class A {
    public string Name {get; set;}
}

will produce a string {"Name":"\u4F60\u597D"} but I want {"Name":"你好"}

I created a code snippet at https://dotnetfiddle.net/w73vnO
Please help me.

推荐答案

You need to set the JsonSerializer options not to encode those strings.

JsonSerializerOptions jso = new JsonSerializerOptions();
jso.Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping;

Then you pass this options when you call your Serialize method.

var s = JsonSerializer.Serialize(a, jso);

Full code:

JsonSerializerOptions jso = new JsonSerializerOptions();
jso.Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping;

var a = new A { Name = "你好" };
var s = JsonSerializer.Serialize(a, jso);        
Console.WriteLine(s);

Result: