[HttpPost]
[Produces("application/json")]
public IActionResult Post([FromBody] RequestClass RequestData)
{
    var stream = this.HttpContext.Request.Body;
    stream.Position = 0;
    using (var reader = new StreamReader(stream))
    {
        string body = reader.ReadToEnd();
        Telemetry.TrackTrace(body,Microsoft.ApplicationInsights.DataContracts.SeverityLevel.Information);
    }
    return Ok();
}

但字符串“body”总是空着.如果我从函数签名中删除[FromBody]装饰,那么此代码可以工作,但RequestData对象只包含null,这不是我想要的.

我唯一能想到的就是将RequestData转换回Json字符串,但这感觉很笨拙而且很慢.

(编辑：POST数据是Json)