Question

我正在使用HttpClient postAsync方法发布和检索json。它的工作就像一个魅力。但是如果服务器在响应头的任何字段中返回“Ö”字符，它将抛出异常。

System.ArgumentException ---> System.ArgumentException: [net_WebHeaderInvalidControlChars]
Arguments:
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.7.60408.0&File=System.Net.dll&Key=net_WebHeaderInvalidControlChars
Parameter name: name
   at System.Net.Browser.ClientHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.ClientHttpWebRequest.<>c__DisplayClasse.<EndGetResponse>b__d(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass1.<BeginOnUI>b__0(Object sendState)
   --- End of inner exception stack trace ---
   at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.ClientHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.Net.Http.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

Answer 1

HTTP标头仅限ASCII。请参阅RFC：http://tools.ietf.org/html/rfc2616

Header中的Umlaute只是一个违反协议，会引发异常。

Windows HttpClient响应头无效字符

1 个答案: