Question

这是方法。我已经研究了很长一段时间，并修改了标题值等。除非我包含内容长度标题，否则它仍然会出现401 Unauthorized Exception，然后它会出现另一个错误，说内容长度标题无效。有谁知道如何解决这个问题？

我也试过通过HTTPWebRequest做到这一点。

Webclient代码：

public void postResponse(string supplierid, string token, string geturl, string lineid)
        {
                lineid = lineid.Trim();
                //string postdata = ("{'supplier_id':'"+supplierid+"', 'token':'"+token+"','ci_lineitem_ids':["+lineid+"]}");

            try
            {
                string postdata = ("{'supplier_id':'"+supplierid+"','token':'"+token+"','ci_lineitem_ids':["+lineid+"]}");

                Console.WriteLine(postdata);
                WebClient postWithParamsClient = new WebClient();
                postWithParamsClient.UploadStringCompleted +=
             new UploadStringCompletedEventHandler(postWithParamsClient_UploadStringCompleted);
                postWithParamsClient.UseDefaultCredentials = true;
                postWithParamsClient.Credentials = new NetworkCredential(supplierid, token);
                postWithParamsClient.Headers.Add("Content-Type", "application/json");

                string headerlength = postdata.Length.ToString();
                //postWithParamsClient.Headers["Content-Length"] = headerlength;
                postWithParamsClient.UploadStringAsync(new Uri(geturl),
                                                       "POST",
                                                       postdata);

            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }


        }

HttpWebRequest的

                ASCIIEncoding encoding = new ASCIIEncoding();
                Byte[] postBytes = encoding.GetBytes(postdata);
                // used to build entire input
                StringBuilder sb = new StringBuilder();

                // used on each read operation
                byte[] buf = new byte[8192];

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(geturl);
                request.Credentials = new NetworkCredential(supplierid, token);
                request.Method = "POST";
                request.ContentLength = postBytes.Length;
                request.ContentType = "application/json";

                Stream postStream = request.GetRequestStream();
                postStream.Write(postBytes, 0, postBytes.Length);
                postStream.Close();

Answer 1

您应该尝试使用fiddler来查看您发送的内容并与服务器所需的内容进行比较。检查授权标头和凭据的有效性。我认为这是第一件要做的事情

在尝试POST时，Rest API会返回401未经授权的异常

1 个答案: