WebRequest GetResponse 没有响应，操作超时

Question

我正在尝试创建一个 HttpWebRequest 以通过 POST 将数据发送到一个 REST Web 服务，然后在处理后使用一个额外的 HttpWebRequest 来下载响应。

POST 正在向 Web 服务发送二进制数据，如下所示：

HttpWebRequest uploadRequest = (HttpWebRequest)WebRequest.Create(baseAddress + uploadURIRequest);
uploadRequest.Timeout = Timeout.Infinite;
uploadRequest.ReadWriteTimeout = Timeout.Infinite;
uploadRequest.Method = "POST";
uploadRequest.ContentLength = fileInfo.Length;
uploadRequest.ContentType = "application/octet-stream";

using (Stream writeStream = uploadRequest.GetRequestStream())
{
    using (FileStream readStream = new FileStream(fileStreamFileName, FileMode.Open, FileAccess.Read))
    {
        byte[] data= new byte[readStream.Length];
        int bytesRead = readStream.Read(data, 0, (int)readStream.Length);
        writeStream.Write(data, 0, bytesRead);

        readStream.Close();
    }
    writeStream.Close();
}

然后发出下一个请求，告诉 Web 服务处理服务器上的数据并返回状态响应。

HttpWebRequest processRequest = (HttpWebRequest)WebRequest.Create(baseAddress + processURIRequest);
processRequest.Timeout = 10000;
processRequest.ReadWriteTimeout = 10000;
processRequest.ContentType = "GET";

HttpWebResponse processRequestResponse = (HttpWebResponse)processRequest.GetResponse();

using (Stream processRequestResponseStream = processRequestResponse.GetResponseStream())
{
    //Do stuff...

}

当我更改内容类型时，它适用于 XML 数据。但是，当我将它与二进制数据保持如上所示时，操作总是超时......即使我将超时时间增加到超过 10 秒。它正在执行的处理不应花费这么长时间才能返回。

当我调试时，它总是挂在与 GetResponse 的线上：

HttpWebResponse processRequestResponse = (HttpWebResponse)processRequest.GetResponse();

Answer 1

添加

HttpWebResponse uploadRequestResponse = (HttpWebResponse)uploadRequest.GetResponse();

写入流后解决了这个问题。