WebException 异常的 message

[shoujiao]

WebException能捕获哪些异常，异常的message具体是什么，在msdn没有查到具体的异常信息，特来请教。

[csdn_aspnet]

https://msdn.microsoft.com/en-us/library/system.net.webexception(v=vs.110).aspx

[小枪]

WebException 可以转成string catch (Exception ex) { if (!string.IsNullOrEmpty(ex.Message) && ex.Message.Contains("404")) { WebException ex1 = (WebException)ex; HttpWebResponse response = (HttpWebResponse)ex1.Response; StreamReader sr = new StreamReader(Helper.GetStreamForResponse(response, Constants.TIME_OUT), Encoding.GetEncoding("utf-8")); string result = sr.ReadToEnd(); sr.Close();