Question

我正在尝试从Web服务（位于http://www.ekkuli.net/conflict_call.php）获取消息正文，该Web服务使用以下代码返回“ Transfer-Encoding：chunked”标签和409冲突响应：

String webAddr = "http://www.ekkuli.net/conflict_call.php";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
httpWebRequest.ContentType = "application/json; charset=utf-8";
httpWebRequest.Method = "POST";
httpWebRequest.ServicePoint.Expect100Continue = false;
httpWebRequest.Accept = "application/json";
httpWebRequest.KeepAlive = true;

try {
    using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) {
        String myJson = "{ \"method\" : \"just testing\" }";
        streamWriter.Write(myJson);
        streamWriter.Flush();
     }

     var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

     using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) {
         var responseText = streamReader.ReadToEnd(); 
      }
} catch (WebException ex) { // Catch 409 Conflict response
    try {
        // Try to get message body from 409 Response
        var s = ex.Response.GetResponseStream();
        var sr = new System.IO.StreamReader(s);
        var content = sr.ReadToEnd(); // THIS THROWS AN EXCEPTION
    } catch (Exception excep) {
        // Exception! Error getting response stream (ReadAsync): ReceiveFailure Value cannot be null. 
    }
}

当服务器返回“ Transfer-encoding：Chuncked” -header时，是否有任何方法可以从409 Conflict -response获取响应主体？如果禁用此标头并返回Content-length，则一切正常，但是在这种情况下，我无法修改服务器代码。

尝试使用RestSharp -library时，会发生相同的问题（它返回状态代码0和消息正文0）。

我正在使用Mono（适用于Mac）

C＃：从HTTP 409冲突响应获取消息正文

0 个答案: