我有一种情况让我发疯,而且网上没有任何真实的信息有帮助。
我正在自动执行上传文件的手动过程。我实际上就像3年前写的这段代码,它在一年中顺利运行,现在它间歇性地失败了。在查看Fiddler流量以查看我刚从浏览器发出的请求和请求时,我看到的唯一不同之处在于,在我的自动呼叫过程中,我得到了这个红色圆圈,并且有两次穿过它。
我的研究表明这个图标意味着客户端中止了会话 - 我没有这样做。我为每个请求传递相同的CookieContainer对象。我不知道为什么会发生这种情况,但是如果我在Fiddler中查看记录行的属性,它会为我的自动请求说明这一点:
SESSION STATE: Aborted.
...
X-ABORTED-WHEN: SendingResponse
...
== TIMING INFO ============
ClientConnected: 16:25:58.563
ClientBeginRequest: 16:25:58.566
GotRequestHeaders: 16:25:58.567
ClientDoneRequest: 16:25:58.567
Determine Gateway: 0ms
DNS Lookup: 0ms
TCP/IP Connect: 0ms
HTTPS Handshake: 0ms
ServerConnected: 16:25:58.207
FiddlerBeginRequest: 16:25:58.567
ServerGotRequest: 16:25:58.567
ServerBeginResponse: 16:25:58.922
GotResponseHeaders: 16:25:58.922
ServerDoneResponse: 16:25:59.268
ClientBeginResponse: 16:25:59.268
ClientDoneResponse: 16:25:59.268
我在浏览器中获得的日志中的相同行如下所示:
SESSION STATE: Done.
...
ClientConnected: 10:33:09.347
ClientBeginRequest: 10:33:11.982
GotRequestHeaders: 10:33:11.982
ClientDoneRequest: 10:33:11.982
Determine Gateway: 0ms
DNS Lookup: 0ms
TCP/IP Connect: 0ms
HTTPS Handshake: 0ms
ServerConnected: 10:33:08.050
FiddlerBeginRequest: 10:33:11.982
ServerGotRequest: 10:33:11.982
ServerBeginResponse: 10:33:12.337
GotResponseHeaders: 10:33:12.337
ServerDoneResponse: 10:33:12.511
ClientBeginResponse: 10:33:12.511
ClientDoneResponse: 10:33:12.514
所以“完成”与“中止”。我从未在请求中打电话给Abort,我根本没有任何例外。这是我的代码,其中发生了中止:
using (WebResponse httpResponse = httpRequest.GetResponse())
{
if (!httpResponse.ResponseUri.AbsoluteUri.Equals(string.Format("{0}main.htm", url), StringComparison.CurrentCultureIgnoreCase))
{
throw new Exception("Log in failed. Check the Username and Password information in the Setting table.");
}
httpResponse.Close();
}
我试图取消“使用”(即使它是推荐的)和“关闭”(也推荐)并且它仍然会被中止。
我很感激
答案 0 :(得分:2)
我遇到了这个问题,我意识到如果没有读取(或访问)响应流,Fiddler中的请求会报告它已被中止。对于我的用例,我不一定需要读取响应流,但是我添加了一些代码来读取响应流(我没有缓冲或保存),然后Fiddler报告请求已完成。你上面的代码没有读取响应流,所以我会试试。
using (WebResponse httpResponse = httpRequest.GetResponse())
{
if (!httpResponse.ResponseUri.AbsoluteUri.Equals(string.Format("{0}main.htm", url), StringComparison.CurrentCultureIgnoreCase))
{
throw new Exception("Log in failed. Check the Username and Password information in the Setting table.");
}
var responseStream = httpResponse.GetResponseStream();
if (null != responseStream)
{
var buffer = new byte[8192];
while (responseStream.Read(buffer, 0, buffer.Length) > 0)
{
// Do nothing here.
}
}
httpResponse.Close();
}