I am having problems with a bit of code that accesses a restful web service. Running this code, it errors out at var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); and the exception returned is: "System.Net.WebException : The remote server returned an error: (415) UNSUPPORTED MEDIA TYPE."
public bool CreateAccount(string myUsername, string url, string authtoken) { try { HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url); httpWebRequest.ContentType = "application/json"; httpWebRequest.MediaType="application/json"; httpWebRequest.Accept="application/json"; httpWebRequest.Method = "POST"; WebHeaderCollection headers = new WebHeaderCollection(); headers.Add("Authorization: Token"+authtoken); httpWebRequest.Headers = headers; using (StreamWriter streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) { streamWriter.Write("{username : ‘"+myUsername+"‘}"); } var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); // Fails on this line. using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) { JavaScriptSerializer jsSerializer = new JavaScriptSerializer(); string json = streamReader.ReadToEnd(); } return true; } catch (WebException e) { throw e; return false; } //return true; }
I have tried various things for the ContentType, MediaType, and Accept, but the working example given to me by the developer of the service supplies -H "Content-Type: application/json" to curl, so it would seem that "application/json" is the correct value. He also does --data-binary, which I assume streamWriter does for me.
Does anyone know what might be causing this error?
Figured it out.
When I do:
WebHeaderCollection headers = new WebHeaderCollection(); headers.Add("Authorization: Token "+authtoken); httpWebRequest.Headers = headers;
I accidentally blow away all of the existing headers that were created by doing:
httpWebRequest.ContentType = "application/json"; httpWebRequest.MediaType="application/json"; httpWebRequest.Accept="application/json"; httpWebRequest.Method = "POST";
The answer is to move the code where I create the header with the auth token above the code where I set the other headers.
System.Net.WebException : The remote server returned an error: (415) UNSUPPORTED MEDIA TYPE
原文：http://www.cnblogs.com/dupeng0811/p/the-remote-server-returned-an-error-415.html