获取响应流时出错 (ReadDone2):接收失败
请帮助我。 发送后查询后,我出现网络异常“获取响应流时出错(ReadDone2):接收失败”。帮助摆脱这个错误。谢谢。
一段代码
try
{
string queryContent = string.Format("login={0}&password={1}&mobileDeviceType={2}/",
login, sessionPassword, deviceType);
request = ConnectionHelper.GetHttpWebRequest(loginPageAddress, queryContent);
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())//after this line //occurs exception - "Error getting response stream (ReadDone2): Receive Failure"
{
ConnectionHelper.ParseSessionsIdFromCookie(response);
string location = response.Headers["Location"];
if (!string.IsNullOrEmpty(location))
{
string responseUri = Utils.GetUriWithoutQuery(response.ResponseUri.ToString());
string locationUri = Utils.CombineUri(responseUri, location);
result = this.DownloadXml(locationUri);
}
response.Close();
}
}
catch (Exception e)
{
errorCout++;
errorText = e.Message;
}
//方法GetHttpWebRequest
public static HttpWebRequest GetHttpWebRequest(string uri, string queryContent)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
request.Proxy = new WebProxy(uri);
request.UserAgent = Consts.userAgent;
request.AutomaticDecompression = DecompressionMethods.GZip;
request.AllowWriteStreamBuffering = true;
request.AllowAutoRedirect = false;
string sessionsId = GetSessionsIdForCookie(uri);
if (!string.IsNullOrEmpty(sessionsId))
request.Headers.Add(Consts.headerCookieName, sessionsId);
if (queryContent != string.Empty)
{
request.ContentType = "application/x-www-form-urlencoded";
request.Method = "POST";
byte[] SomeBytes = Encoding.UTF8.GetBytes(queryContent);
request.ContentLength = SomeBytes.Length;
using (Stream newStream = request.GetRequestStream())
{
newStream.Write(SomeBytes, 0, SomeBytes.Length);
}
}
else
{
request.Method = "GET";
}
return request;
}
Help me please.
After sending post query i have webexception "Error getting response stream (ReadDone2): Receive Failure". help get rid of this error. thanks.
piece of code
try
{
string queryContent = string.Format("login={0}&password={1}&mobileDeviceType={2}/",
login, sessionPassword, deviceType);
request = ConnectionHelper.GetHttpWebRequest(loginPageAddress, queryContent);
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())//after this line //occurs exception - "Error getting response stream (ReadDone2): Receive Failure"
{
ConnectionHelper.ParseSessionsIdFromCookie(response);
string location = response.Headers["Location"];
if (!string.IsNullOrEmpty(location))
{
string responseUri = Utils.GetUriWithoutQuery(response.ResponseUri.ToString());
string locationUri = Utils.CombineUri(responseUri, location);
result = this.DownloadXml(locationUri);
}
response.Close();
}
}
catch (Exception e)
{
errorCout++;
errorText = e.Message;
}
//Methot GetHttpWebRequest
public static HttpWebRequest GetHttpWebRequest(string uri, string queryContent)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
request.Proxy = new WebProxy(uri);
request.UserAgent = Consts.userAgent;
request.AutomaticDecompression = DecompressionMethods.GZip;
request.AllowWriteStreamBuffering = true;
request.AllowAutoRedirect = false;
string sessionsId = GetSessionsIdForCookie(uri);
if (!string.IsNullOrEmpty(sessionsId))
request.Headers.Add(Consts.headerCookieName, sessionsId);
if (queryContent != string.Empty)
{
request.ContentType = "application/x-www-form-urlencoded";
request.Method = "POST";
byte[] SomeBytes = Encoding.UTF8.GetBytes(queryContent);
request.ContentLength = SomeBytes.Length;
using (Stream newStream = request.GetRequestStream())
{
newStream.Write(SomeBytes, 0, SomeBytes.Length);
}
}
else
{
request.Method = "GET";
}
return request;
}
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就我而言,服务器没有发送响应正文。修复服务器后,“接收失败”消失了。
因此,您有两个选择:
如果您可以没有响应流,则不要请求响应流。
确保服务器发送响应正文。
例如,而不是
Python 服务器代码应该是
In my case the server did not send a response body. After fixing the server, the "Receive Failure" vanished.
So you have two options:
Don't request a response stream, if you can live without it.
Make sure the server sends a response body.
E.g., instead of
the Python server code should be
它不是 Xamarin 或.NET 的错误。 :wink:
您的服务器端端点在请求时失败。 :neutral:
检查您的 API 端点(如果您拥有该 API)或联系支持人员(如果您从第三方公司获取 API)或服务。
为什么它随机发生: :wink:
因为 bug 存在于您内部的 if 或循环块中,并且当它经过这个有缺陷的循环或 if 时就会发生。
此致。 :微笑:
its not Xamarin or .NET's bug. :wink:
your server side endpoint fails when requesting. :neutral:
check your API endpoint if you own the api or contact support if you are getting API from third party company or service.
why it happens randomly : :wink:
because bug is in your inner if or loop blocks and it happens when it goes through this buggy loop or if.
best regards. :smile: