C# HttpClient 或 HttpWebRequest class

Question

目前在我的项目中，我使用 HttpWebRequest class 来调用任何类型的 REST API。

像这样

    public string Post(string postData)
    {
        string resultString = string.Empty;

        WebRequest req = WebRequest.Create(_serviceEndoint);

        HttpWebRequest httpWebReq = (HttpWebRequest)req;
        httpWebReq.CookieContainer = _cookieContainer;

        req.ContentType = "application/xml";
        req.Method = "POST";
        req.Credentials = new NetworkCredential("Administrator", "Password");
        try
        {
            Stream requestStream = req.GetRequestStream();

            UTF8Encoding encoding = new UTF8Encoding();

            byte[] bytes = encoding.GetBytes(postData);
            requestStream.Write(bytes, 0, bytes.Length);

            HttpWebResponse resp = req.GetResponse() as HttpWebResponse;

            if (resp.StatusCode == HttpStatusCode.OK)
            {
                using (Stream respStream = resp.GetResponseStream())
                {
                    StreamReader reader = new StreamReader(respStream, Encoding.UTF8);

                    resultString = reader.ReadToEnd();
                }
            }

        }
        catch (Exception ex)
        {
            resultString = ex.ToString();
        }

        return resultString;
    }

这是有效的:) 但我很好奇这样做的新方法。 HttpClient class 有任何缺点吗（您的经验、意见）？

目前 class 正在使用 'better' 调用休息服务（get、post、put、delete）的方式，而不是手动完成所有操作吗？

Answer 1

HttpClient 的优点是它更简单，并且受大多数便携式 Class 库配置文件支持。缺点是它不支持非 http 请求，而 WebRequest 支持。换句话说，HttpClient 是 HttpWebRequest 的替代品，但没有 FtpWebRequest 的替代品，等等

另请参阅此 post 了解更多详情：

C# HttpClient 或 HttpWebRequest class

C# HttpClient or HttpWebRequest class

c#

rest

dotnet-httpclient