在C#中执行发布请求会导致奇怪的输出

时间:2017-02-17 12:58:45

标签: c# json rest webclient

我正在向几个服务器发帖子。这些服务器返回除一个以外的所有json。其中一个返回如下数据:1fe2 80b9 0800 0000 0000 0400 c3ac c2bd。

如果我对休息客户端做同样的事情,我会从所有服务器获得有效的Json但是当我在c#中执行它时,其中一个服务器会返回这种数据。

我使用以下代码执行此操作:

public static string MakeRequest(string url, string requestBody, string methodName)
        {
            string result = "";
            using (var client = new WebClient())
            {
                client.Headers[HttpRequestHeader.ContentType] = "application/json"; 
                result = client.UploadString(string.Format("{0}{1}", url, methodName), "POST", requestBody);
            }
            return result;
        }

我也试过这个(旧代码):

public static string MakeRequestA(string url, string requestBody, string methodName)
        {
            byte[] postBytes        = Encoding.ASCII.GetBytes(requestBody);

            var request     = (HttpWebRequest)WebRequest.Create(string.Format("{0}{1}", url, methodName));
            request.KeepAlive       = false;
            request.ProtocolVersion = HttpVersion.Version11;
            request.Method          = "POST";
            request.ContentType     = "application/json";
            request.Accept          = "text/plain";
            request.ContentLength   = postBytes.Length;

            Stream requestStream = request.GetRequestStream();

            requestStream.Write(postBytes, 0, postBytes.Length);
            requestStream.Close();

            WebResponse response = request.GetResponse();  
            Console.WriteLine (((HttpWebResponse)response).StatusDescription);  

            var dataStream = response.GetResponseStream ();
            var reader = new StreamReader (dataStream);  
            string responseFromServer = reader.ReadToEnd ();  

            reader.Close ();  
            dataStream.Close ();  
            response.Close ();  
            return responseFromServer;
        }

我无法真正为您提供服务器网址,因为它们是私有的。有人知道为什么我得到这些数据而不是有效的json?

1 个答案:

答案 0 :(得分:0)

请在您的计算机上安装fiddler工具,然后检查REST客户端生成的请求标头。并捕获.net客户端生成的请求头。然后比较两种请求格式以找到解决方案