使用 HttpWebRequest 发送凭据答案

【问题标题】：Sending credentials with HttpWebRequest使用 HttpWebRequest 发送凭据
【发布时间】：2013-10-25 00:38:07
【问题描述】：

我目前正在尝试使用来自Wunderlist 的 API 在 Windows Phone 8 上创建待办事项列表。但是，我无法在 POST 请求中传递我的凭据。这是我的代码：

public async Task<System.IO.TextReader> DoRequestAsync(WebRequest request)
    {
            var task = Task.Factory.FromAsync((cb, o) => ((HttpWebRequest)o).BeginGetResponse(cb, o), res =>
                    ((HttpWebRequest)res.AsyncState).EndGetResponse(res), request);
            var result = await task;
            var response = result;
            var stream = response.GetResponseStream();
            var sr = new System.IO.StreamReader(stream);
        return sr;
    }

还有：

public async Task<System.IO.TextReader> Login(string email, string password)
    {
        //User Credentials
        WebClient client = new WebClient();
        var parms = new Dictionary<string, string>();
        parms.Add(email, password);


        //Request
        HttpWebRequest request = HttpWebRequest.CreateHttp(API_URL + "/login");
        request.AllowReadStreamBuffering = true;
        request.Method = HttpMethod.Post;
        // This doesn't seem to work
        request.Credentials = new NetworkCredential(email, password);
        var tr = await DoRequestAsync(request);
        return tr;
    }
    private string DictToString(Dictionary<string, string> dict)
    {
        StringBuilder builder = new StringBuilder();
        foreach(KeyValuePair<string, string> kvp in dict)
        {
            builder.Append(kvp.Key + "=" + kvp.Value + "&");
        }
        return builder.ToString();

    }

感谢帮助

【问题讨论】：

你为什么不用HttpClient？
另外，您需要对您的值进行 URL 编码。
看起来 HttpClient 更容易。我想我会试试的，谢谢！

标签： c# json windows-phone-8 httpwebrequest wunderlist

【解决方案1】：

删除带有 .credentials 的字符串，因为 NetworkCredential 用于 NTLM/Kerberos，这里是通常 POST 的 api

发送请求前添加：

request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
using (var writer = new StreamWriter(request.GetRequestStream()))
{
    writer.Write("email=" + HttpUtility.UrlEncode(email));
    writer.Write("&password=" + HttpUtility.UrlEncode(password));
}

【讨论】：