WEB API C# 响应挂起 (HttpWebResponse)http.GetResponse()

Question

我正在做一个 WEB API .net 4.62，它使用用户名密码和 grant_type 获取访问令牌，一旦生成，我想获取它的 access_token 值。这不会发生，但是当我将相同的代码带到 Windows 时形成应用程序我能够得到它可能有什么问题。它继续使用 (HttpWebResponse response = (HttpWebResponse)http.GetResponse())

try
            {
                string myParameters = "username=value1&password=value2&grant_type=password";
                string baseAddress = "http://localhost:50128/token";
                var http = (HttpWebRequest)WebRequest.Create(new Uri(baseAddress));
                http.Accept = "application/x-www-form-urlencoded";
                http.ContentType = "application/x-www-form-urlencoded";
                http.Method = "POST";

                string parsedContent = myParameters;
                ASCIIEncoding encoding = new ASCIIEncoding();
                Byte[] bytes = encoding.GetBytes(parsedContent);
                Stream newStream = http.GetRequestStream();
                newStream.Write(bytes, 0, bytes.Length);
                newStream.Close();
                http.ServicePoint.Expect100Continue = false;
                http.ProtocolVersion = HttpVersion.Version11;
                http.Timeout = 2000;
               using (HttpWebResponse response = (HttpWebResponse)http.GetResponse())
                {
                    var stream = response.GetResponseStream();
                    var sr = new StreamReader(stream);
                    var content = sr.ReadToEnd();
                    JObject json = JObject.Parse(content);
                    var message = json.SelectToken("access_token").ToString();
                    Console.Write(message);
                }
            }
            
            catch (Exception ex)
            {
                //Handle the exceptions that could appear
            }

Answer 1

像这样更改 using 块，并将您的函数转换为“异步”。

使用 (HttpWebResponse response = (HttpWebResponse)await Task.Factory.FromAsync(http.BeginGetResponse, http.EndGetResponse, null).ConfigureAwait(false))

让我知道它是否有效。