WebRequest超时错误

Question

我尝试在Mono中使用设置"Mono 2.10.2“构建一个应用程序，但出现了以下错误。

Unhandled Exception: System.Net.WebException: The request timed out
  at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00046] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.7\mcs\class\System\System.Net\HttpWebRequest.cs:813
  at System.Net.HttpWebRequest.GetResponse () [0x0000e] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.6.7\mcs\class\System\System.Net\HttpWebRequest.cs:825

导致此问题的代码片段如下：

string url = "http://webFarm/config.prop"; 
WebRequest req = WebRequest.Create(url); 
WebResponse resp = req.GetResponse(); 

它立即失败了。但是如果我将设置改为"Default Runtime“而不是"Mono 2.10.2"，一切都是正常的。有人能帮我这个忙吗？

问候你，大卫

Answer 1

我使用下面的代码也得到了这个错误：

HttpWebRequest objRequest = 
(HttpWebRequest)WebRequest.Create("https://api-3t.sandbox.paypal.com/nvp");
objRequest.Timeout =15000;
objRequest.Method = "POST";
objRequest.ContentLength = strPost.Length;
using (StreamWriter myWriter = new 
    StreamWriter(objRequest.GetRequestStream()))
            myWriter.Write(strPost);

导致GetRequestStream()出现异常：

System.Net.WebException: The request timed out
  at System.Net.HttpWebRequest.GetRequestStream () [0x0005f] in 
/usr/src/redhat/BUILD/mono-2.10.2/mcs/class/System/System.Net/HttpWebRequest.cs:752
  at NVPAPICaller.HttpCall (System.String NvpRequest) [0x00000] in <filename 

unknown>:0

--------------------------------------------------------------------------------
Version information: Mono Runtime Version: 2.10.2 (tarball Mon Apr 18 

18:57:39 UTC 2011)；ASP.NET版本: 2.0.50727.1433

您应该恢复到较旧的Mono 2.10，2.10.1可能会工作。