.net - 使用来自 webapi 的 HttpClient 使用 xml

Question

我使用 WebClient 从 restfull 服务(.net web api)获取一个 Xml 对象，一切都很好:

using(WebClient client = new WebClient())
{
   client.Encoding = UTF8Encoding.UTF8;
   client.Headers[HttpRequestHeader.ContentType] = "text/xml";
   client.Credentials = // ....;
   xmlResult = webClient.DownloadString(url);
}

....

这段代码很好用。我得到一个 Xml 作为字符串返回，每个人都很高兴。

现在，我更改了它，以便它可以与 HttpClient 一起使用，并且我无法返回 Xml - 始终将 json 作为字符串。

using(var handler = new HttpClientHandler() {Credentials = new NetworkCredentials})
using(var client = new HttpClient(handler))
{
   var request = new HttpRequestMessage(HttpMethod.Get, url);
   request.Headers.Add(HttpRequestHeader.ContentType.ToString(), "text/xml");
   returnedXml = client.SendAsync(request).Result.Content.ReadAsStringAsync().Result;
}   

我究竟做错了什么？我怎样才能得到我渴望的 Xml？

谢谢

Answer 1

试试这个..

using(var handler = new HttpClientHandler() {Credentials = new NetworkCredentials})
using(var client = new HttpClient(handler))
{
      client.DefaultRequestHeaders
      .Accept
      .Add(new MediaTypeWithQualityHeaderValue("text/xml"));
   var request = new HttpRequestMessage(HttpMethod.Get, url);
    returnedXml = client.SendAsync(request).Result.Content.ReadAsStringAsync().Result;
}