服务器返回错误：找不到404

Question

I'm trying to get xml-data from an api like this:

try
{
    var url = "http://myapi.dev.io/xml/" + peNo;

    CookieContainer myContainer = new CookieContainer();
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Credentials = new NetworkCredential("restuser", "rest2user");
    request.CookieContainer = myContainer;
    request.PreAuthenticate = true;

    using (var response = request.GetResponse() as HttpWebResponse)
    {
        using (var reader = new StreamReader(response.GetResponseStream()))
        {
            var data = new AssetXmlDTO() { AssetXml = reader.ReadToEnd() };
            return data;
        }
    }
}
catch (WebException ex)
{
    if (ex.Status == WebExceptionStatus.ProtocolError)
    {
        if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.NotFound)
        {
            // handle the 404 here
            return null;
        }
}

But everytime I run the code, I get an 404...

However, If i copy the url and navigates to it via the browser, it works. I get the following xml-result when doing so:

<result>
service/assets/asset/id/9301246/version/7/element/actual/0/storage/preview/file/09078960.jpg
</result>

So why do I get an 404 in my code when actually does exists? Any idea?

Answer 1

May be you should add some attributs to your HttpWebRequest like :

request.Method = "POST"; 
string _yourPostData = peNo;
byte[] byteArray = Encoding.UTF8.GetBytes(_yourPostData );
request.ContentType = "application/xml";
request.ContentLength = byteArray.Length;  
Stream _dataStream = request.GetRequestStream(); 
_dataStream.Write(byteArray, 0, byteArray.Length);
_dataStream.Close();
// Get the response.  
WebResponse response = request.GetResponse();