ASP.NET Core:在 Json Response 中设置不同于 UTF-8 的字符集 [英] ASP.NET Core: Set charset different from UTF-8 in Json Response

问题描述

我在 ASP.NET Core 项目的控制器中有这个 get 请求

I have this get request in my controller in ASP.NET Core project

    [HttpGet]
    [Route("api/controller/getlastresult/{id}")]
    public IActionResult GetLatestResultForController(string id)
    {
        Response.ContentType = "application/json";

        var list = _dbAccessLayer.GetAllVoteResults();
        var appropriateResults = list.Where(item => item.DeviceId.Equals(id) && item.Status == "Finished")
            .OrderBy(item => item.TimeStarted);

        if (appropriateResults.Any())
            return Ok(Json(appropriateResults.Last().Result));

        return BadRequest();
    }

它工作正常，但在标题中有 Content-Type: application/json;charset=utf-8 如您所见:

It works fine, but in the headers there is Content-Type: application/json; charset=utf-8 as you can see here:

我只需要普通的 application/json，没有字符集 utf-8，所以我猜它会是 ASCII 字符集.原因是我将此请求与不喜欢 utf-8 编码的微控制器一起使用.

I need just regular application/json, without charset utf-8, so I guess it will be ASCII charset. Reason being that I use this request with microcontroller which does not like utf-8 encoding.

如何在我的 Get 请求的响应中设置chaset?谢谢

How do I set chaset in the response of my Get request? Thanks

推荐答案

对于删除字符集，你可以尝试像

For removing charset, you could try middleware like

app.Use(async (context, next) =>
{
    context.Response.OnStarting((state) =>
    {
        if (context.Response.Headers.Count > 0 && context.Response.Headers.ContainsKey("Content-Type"))
        {
            var contentType = context.Response.Headers["Content-Type"].ToString();
            if (contentType.StartsWith("application/json"))
            {
                context.Response.Headers.Remove("Content-Type");
                context.Response.Headers.Append("Content-Type", "application/json");
            }
        }

        return Task.FromResult(0);
    }, null);
    await next.Invoke();
});

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