使用下面的代码,我收到一条错误消息:
指定的blob不存在
当我调试我的代码时,在.CreateBlobContainer
- 我可以看到指定的bob已创建,然后在我的代码之外我手动复制并将文本文件粘贴到我的blob中。然后当我到达最后一行时代码.DownloadToStream
,它抛出异常错误,指出指定的blob不存在。 - 即使鲍勃确实存在
我的示例代码有什么问题:
string testContainerName = "xyz"+Common.GenerateRandomEightCharString().ToLower();
var testBlobClient = BlobClientFactory.CreateBlobClient(true);
var testContainer = BlobClientFactory.CreateBlobContainer(testBlobClient, testContainerName);
var zipOutputStream = new ZipOutputStream(Response.OutputStream)
{
CompressionLevel = CompressionLevel.Default
};
zipOutputStream.CompressionLevel = CompressionLevel.Default;
zipOutputStream.EnableZip64 = Zip64Option.AsNecessary;
CloudBlob testBlob = testBlobClient.GetBlobReference(testBlobClient.BaseUri.ToString() + testContainerName);
zipOutputStream.PutNextEntry(testContainerName);
BlobRequestOptions options = new BlobRequestOptions();
options.Timeout = TimeSpan.FromSeconds(20.0);
testBlob.DownloadToStream(zipOutputStream, options); //Exception error here
这是异常消息。
Microsoft.WindowsAzure.StorageClient.StorageClientException was unhandled by user code
HResult=-2146233088
Message=The specified blob does not exist.
Source=Microsoft.WindowsAzure.StorageClient
StackTrace:
at Microsoft.WindowsAzure.StorageClient.Tasks.Task`1.get_Result()
at Microsoft.WindowsAzure.StorageClient.Tasks.Task`1.Execute()
at Microsoft.WindowsAzure.StorageClient.RequestWithRetry.RequestWithRetrySyncImpl[TResult](ShouldRetry retryOracle, SynchronousTask`1 syncTask)
at Microsoft.WindowsAzure.StorageClient.TaskImplHelper.ExecuteSyncTaskWithRetry[TResult](SynchronousTask`1 syncTask, RetryPolicy policy)
at Microsoft.WindowsAzure.StorageClient.CloudBlob.DownloadToStream(Stream target, BlobRequestOptions options)
at ............................
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
InnerException: System.Net.WebException
HResult=-2146233079
Message=The remote server returned an error: (404) Not Found.
Source=System
StackTrace:
at System.Net.HttpWebRequest.GetResponse()
at Microsoft.WindowsAzure.StorageClient.EventHelper.ProcessWebResponseSync(WebRequest req, EventHandler`1 handler, Object sender)
InnerException:
答案 0 :(得分:1)
我刚刚重启了我的webrole并开始工作
答案 1 :(得分:0)
根据您的评论,我看到发生了什么。基本上,您通过代码创建一个blob容器(将其视为文件夹),然后手动复制该容器中的文件。但是,您用于blob的URL(将其视为文件)是容器的URL而不是文件。
您需要做的是将文件的名称附加到blob URL。因此,假设您在容器中手动复制的文件名为xyz.txt
,您将使用以下代码创建testBlob
对象:
CloudBlob testBlob = testBlobClient.GetBlobReference(testBlobClient.BaseUri.ToString() + testContainerName + "/xyz.txt");
试一试。它应该工作。