Azure Worker角色和Blob存储C＃-Microsoft.WindowsAzure.Storage.StorageException：远程服务器返回错误：（400）错误的请求

Question

我已将文件上传到Blob存储中。 我正在尝试从辅助角色下载这些文件以对其进行一些处理。 容器名称从WebApi2发送到队列。

worker角色首先从队列中获取容器名称，然后尝试下载该容器中的blob。

以下是名称的代码：

  public override void Run()
    {
        Trace.WriteLine("Starting processing of messages");

        // Initiates the message pump and callback is invoked for each message that is received, calling close on the client will stop the pump.
        Client.OnMessage((receivedMessage) =>
        {
            try
            {
                // Process the message
                Trace.WriteLine("Processing Service Bus message: " + receivedMessage.SequenceNumber.ToString());
                string msg = "Container Name: " + receivedMessage.GetBody<String>();
                Trace.WriteLine("Processing Service Bus message: " + msg);

                CloudStorageAccount storageAccount =   CloudStorageAccount.Parse(
    CloudConfigurationManager.GetSetting("MyStorage"));


                CloudBlobContainer imagesContainer = null;


                CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

                imagesContainer = blobClient.GetContainerReference(msg);


                // Create the container if it doesn't already exist.
                imagesContainer.CreateIfNotExists();


                imagesContainer.SetPermissions(new BlobContainerPermissions
                {
                    PublicAccess = BlobContainerPublicAccessType.Blob
                });

                var blobs = imagesContainer.ListBlobs();
                var listOfFileNames = new List<string>();


                foreach (var blob in blobs)
                {
                    var blobFileName = blob.Uri.Segments.Last();
                    listOfFileNames.Add(blobFileName);
                    Trace.WriteLine(listOfFileNames);
                }

                if (listOfFileNames == null)
                {

                    Trace.WriteLine("present");
                }



                for (i = 1; i < 3; i++)
                {
                    CloudBlockBlob signBlob =    imagesContainer.GetBlockBlobReference(i + ".txt");

                    MemoryStream lms = new MemoryStream();
                    signBlob.DownloadToStream(lms);
                    lms.Seek(0, SeekOrigin.Begin);

                    StreamReader SR = new StreamReader(lms);
                    Trace.WriteLine(SR);
                }


            }




            catch(Microsoft.WindowsAzure.Storage.StorageException e)
            {
                // Handle any message processing specific exceptions here
                Trace.WriteLine("Error:" + e);
            }
        });

        CompletedEvent.WaitOne();
    }

我收到以下异常：

enter code hereException thrown: 'Microsoft.WindowsAzure.Storage.StorageException' in Microsoft.WindowsAzure.Storage.dll

错误：Microsoft.WindowsAzure.Storage.StorageException：远程服务器返回错误：（400）错误的请求。 ---> System.Net.WebException：远程服务器返回错误：（400）错误的请求。 在System.Net.HttpWebRequest.GetResponse（）在Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync [T]（RESTCommand 1 cmd, IRetryPolicy policy, OperationContext operationContext) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Core\\Executor\\Executor.cs:line 677 --- End of inner exception stack trace --- at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand 1 C：\\ Program Files（x86）\\ Jenkins \\ workspace \\ release_dotnet_master \\ Lib \\ ClassLibraryCommon \\ Core \\ Executor \\ Executor.cs：行604中的cmd，IRetryPolicy策略，OperationContext operationContext）：Microsoft.WindowsAzure.Storage.Blob.CloudBlobContainer.CreateIfNotExists （C：\\ Program Files（x86）\\ Jenkins \\ workspace \\ release_dotnet_master \\ Lib \\ ClassLibraryCommon \\ Blob \\ CloudBlobContainer.cs：Line 199中的BlobContainerPublicAccessType accessType，BlobRequestOptions requestOptions，OperationContext operationContext）：WorkerRoleWithSBQueue1.WorkerRole.bred_4_0上的199行 receiveMessage）

任何帮助将不胜感激。

Answer 1

查看您的代码，您正在执行以下操作：

string msg = "Container Name: " + receivedMessage.GetBody<String>();

然后您要执行以下操作：

        imagesContainer = blobClient.GetContainerReference(msg);
        // Create the container if it doesn't already exist.
        imagesContainer.CreateIfNotExists();

因此，基本上，您正在创建一个容器名称，该名称以“容器名称”开头，这是该Container Name的无效值。 这就是为什么您得到错误。

请参阅此链接以获取Blob容器的有效命名约定： https : //msdn.microsoft.com/zh-cn/library/azure/dd135715.aspx 。