Core 2.1 HttpRequest.Body 在尝试读取时为空

Question

我正在尝试从 HttpRequest.Body 读取流数据，但我得到的是空字符串。请求从 .net 项目发送到这里

        HttpWebRequest request = null;
        Uri uri = new Uri(**Endpoint**);
        UTF8Encoding encoding = new UTF8Encoding();
        byte[] bytes = encoding.GetBytes(message);
        request = (HttpWebRequest)WebRequest.Create(uri);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        request.ContentLength = bytes.Length;
        request.UseDefaultCredentials = true;
        using (Stream writeStream = request.GetRequestStream()) {
            writeStream.Write(bytes, 0, bytes.Length);
        }
        try {
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            if (response.StatusCode == HttpStatusCode.OK) {
                return true;
            } else {
                return false;
            }
        } catch {
            lock (endpointLock) {
                _pushHttpEndpoint = null;
            }
            return false;
        }

请求在此处发送。这是 .net core 2.1 应用程序。我正在尝试读取请求正文中的数据，但返回空

    [HttpPost]
    public string Post()
    {
        var bodyStr = "";
        var req = HttpContext.Request;           
        req.EnableRewind();            
        using (StreamReader reader
                  = new StreamReader(req.Body, Encoding.UTF8, true, 1024, true))
        {
            bodyStr = reader.ReadToEnd();
        }    

        req.Body.Seek(0, SeekOrigin.Begin);
        //do other stuff
        return bodyStr;
     }

有人可以帮我解决这个问题。我们处于无法更改 .net 解决方案代码的位置。任何更改都应在 .net 核心解决方案方面完成。我们正在尝试使用新的 api 来代替现有的 Endpoint。:(

Answer 1

您应该使用 [FromBody] 属性。

将会是这样的：

[HttpPost]
public string Post([FromBody] object body) {
// do stuff here
}