C# 请求被中止：连接意外关闭
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The request was aborted: The connection was closed unexpectedly
提问by Xaisoft
I am using Jon Skeet's ReadFully method implemented here:
我正在使用在此处实现的 Jon Skeet 的 ReadFully 方法：
public static byte[] ReadFully(Stream stream)
{
var buffer = new byte[32768];
using (var ms = new MemoryStream())
{
while (true)
{
int read = stream.Read(buffer, 0, buffer.Length);
if (read <= 0)
return ms.ToArray();
ms.Write(buffer, 0, read);
}
}
}
It throws an exception at the line:
它在该行引发异常：
int read = stream.Read(buffer, 0, buffer.Length);
The error message is The request was aborted: The connection was closed unexpectedly.
错误信息是The request was aborted: The connection was closed unexpectedly。
I am sending an xml request to a webservice. My send method looks like this:
我正在向 Web 服务发送 xml 请求。我的发送方法如下所示：
private static string SendRequest(XElement request, string url)
{
var req = (HttpWebRequest)WebRequest.Create(url);
req.ContentType = "application/soap+xml;";
req.Method = "POST";
req.KeepAlive = false;
req.Timeout = System.Threading.Timeout.Infinite;
req.ReadWriteTimeout = System.Threading.Timeout.Infinite;
req.ProtocolVersion = HttpVersion.Version10;
req.AllowWriteStreamBuffering = false;
using (var stm = req.GetRequestStream())
{
using (var stmw = new StreamWriter(stm))
{
stmw.Write(request.ToString());
}
}
Stream responseStream;
using (var webResponse = req.GetResponse())
{
responseStream = webResponse.GetResponseStream();
}
// Do whatever you need with the response
var myData = ReadFully(responseStream);
string responseString = Encoding.ASCII.GetString(myData);
return responseString;
}
I tried without and without the following variables set and it gives me the same message:
我在没有和没有设置以下变量的情况下尝试过，它给了我相同的消息：
req.KeepAlive = false;
req.Timeout = System.Threading.Timeout.Infinite;
req.ReadWriteTimeout = System.Threading.Timeout.Infinite;
req.ProtocolVersion = HttpVersion.Version10;
req.AllowWriteStreamBuffering = false;
采纳答案by Blindy
The problem is in this part of your code:
问题出在您代码的这一部分：
// wrong way to do it!
Stream responseStream;
using (var webResponse = req.GetResponse())
{
responseStream = webResponse.GetResponseStream();
}
// Do whatever you need with the response
var myData = ReadFully(responseStream);
You're disposing your response object before reading from its stream. Try something like this instead:
在从其流中读取之前，您正在处理您的响应对象。试试这样的：
byte[] myData;
using (var webResponse = req.GetResponse())
{
var responseStream = webResponse.GetResponseStream();
myData = ReadFully(responseStream); // done with the stream now, dispose of it
}
// Do whatever you need with the response
string responseString = Encoding.ASCII.GetString(myData);
