删除实体的Rest API调用返回403错误

Question

下面的代码旨在用给定的分区键和ROWKEY从表中删除一行。但我在Fiddler中得到以下请求/响应。我怎样才能纠正错误？

DELETE https://hireazureStorageAcct.table.core.windows.net/mytable(PartitionKey='sample1',%20rowkey='0001')？timeout=20 http/1.1接受：Application/JSON；odata=nometadata X-ms-日期：Mon,Man,May 2017 17:59:14 GMT X-ms-版本：2015-04-05接受-字符集：UTF-8 MaxDataServiceVersion:3.0；Netfx DataServiceVersion:1.0；Netfx if-match:*内容-类型：Application/JSON授权：

HTTP/1.1 403服务器无法验证请求。确保授权标头的值包含签名的格式正确。content-length：299 content-type：application/json server：microsoft-httpapi/2.0 x-ms-request-id:a9244f7f-0002-0048-0824-c8afc5000000日期：Mon,08 May 2017 17:59:14 GMT

{“OData.Error”：{“Code”：“AuthenticationFailed”,“Message”：{“Lang”：“EN-US”,“value”：“服务器无法对请求进行身份验证.请确保授权标头得值包含签名得格式正确.\nRequestId:A9244F7F-0002-0048-0824-C8AFC5000000\nTime:2017-05-08T17:59:14.9335100Z”}}}

公共静态int DeleteEntity（string storageAccount,string accessKey,string tableName,string partitionkey,string rowkey）{string uri=$@“https：//{storageAccount}.table.core.windows.net/{tableName}(partitionkey='{partitionkey}‘,rowkey='{rowkey}')？Timeout=20”；string resource=$@“{tableName}”；

        // Web request 
        var request = (HttpWebRequest)WebRequest.Create(uri);
        request.Method = "DELETE";
        request.Accept = "application/json;odata=nometadata";
        request.Headers.Add("x-ms-date", DateTime.UtcNow.ToString("R", System.Globalization.CultureInfo.InvariantCulture));
        request.Headers.Add("x-ms-version", "2015-04-05");
        request.Headers.Add("Accept-Charset", "UTF-8");
        request.Headers.Add("MaxDataServiceVersion", "3.0;NetFx");
        request.Headers.Add("DataServiceVersion", "1.0;NetFx");
        request.Headers.Add("If-Match", "*");
        request.ContentType = "application/json";


        // Signature string for  Shared Key Lite Authentication must be in the form
        // StringToSign = Date + "\n" + CanonicalizedResource
        // Date 
        string stringToSign = request.Headers["x-ms-date"] + "\n";

        // Canonicalized Resource in the format  /{0}/{1} where 0 is name of the account and 1 is resources URI path
        stringToSign += "/" + storageAccount + "/" + resource;

        // Hash-based Message Authentication Code (HMAC) using SHA256 hash
        var hasher = new HMACSHA256(Convert.FromBase64String(accessKey));

        // Authorization header
        string strAuthorization = "SharedKeyLite " + storageAccount + ":" + Convert.ToBase64String(hasher.ComputeHash(System.Text.Encoding.UTF8.GetBytes(stringToSign)));

        // Add the Authorization header to the request
        request.Headers.Add("Authorization", strAuthorization);
        Thread.Sleep(1000);
        // Execute the request
        try
        {
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (var r = new StreamReader(response.GetResponseStream()))
                {
                    return (int)response.StatusCode;
                }
            }
        }
        catch (WebException ex)
        {
            // get the message from the exception response
            using (var sr = new StreamReader(ex.Response.GetResponseStream()))
            {
                var res = sr.ReadToEnd();
                // Log res if required
            }

            return (int)ex.Status;
        }
    }

Answer 1

状态403意味着您需要进行身份验证才能访问资源。任何像样的服务器都不会给你任何包含任何关于资源的信息的东西。所以无论资源是否存在，您都会得到相同的答复。