Xml 来自 URL 的请求和响应

Question

我正在尝试从接受 Xml 输入和 returns Xml 输出的 URL 获得响应。

还有这种情况，当这个 Url returns 错误请求 400 时，在这种情况下，在代码中我会得到一个异常，我无法查看 Xml，但如果我在邮递员中尝试相同的输入，我将得到 Xml 输出。

如果出现异常，我可以使用 WebException 捕获此异常，但最后我使用reader.ReadToEnd() 我会得到一个 JSON 而不是我从邮递员那里得到的 Xml 输出

邮递员输出示例：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<RESPONSE MODE="DIRECT" TYPE="PINPRINTING">
    <RESULTMESSAGE>User not allowed to process</RESULTMESSAGE>
</RESPONSE>

这是我的代码：

public void GetResponse()
        {
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(myURL);
                request.Accept = "application/xml";

                byte[] requestInFormOfBytes = System.Text.Encoding.ASCII.GetBytes(requestXmlDoc.InnerXml);
                request.Method = "POST";
                request.ContentType = "text/xml;charset=utf-8";
                request.ContentLength = requestInFormOfBytes.Length;
                Stream requestStream = request.GetRequestStream();

                requestStream.Write(requestInFormOfBytes, 0, requestInFormOfBytes.Length);
                requestStream.Close();

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                StreamReader respStream = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);
                string receivedResponse = respStream.ReadToEnd();
            }
            catch (WebException e)
            {
                using (WebResponse response = e.Response)
                {
                    HttpWebResponse httpResponse = (HttpWebResponse)response;
                    Console.WriteLine("Error code: {0}", httpResponse.StatusCode);
                    using (Stream data = response.GetResponseStream())
                    using (var reader = new StreamReader(data, ASCIIEncoding.ASCII))
                    {
                        string text = reader.ReadToEnd();

                        Console.WriteLine(text);
                    }
                }
            }
        }

返回的JSON是这样的：

{
  "status": 400,
  "statusDesc": "Invalid input"
}

Answer 1

嘿，我发现答案是内容类型。改变了： request.ContentType = "text/xml;字符集=utf-8"; 对此 request.ContentType = "application/xml"; 现在我得到了我需要的Xml

Xml 来自 URL 的请求和响应

Xml Request and response from a URL

c#

xml

httpwebrequest