无法上传到Azure Blob存储:远程服务器返回错误:(400)错误的请求 [英] Cannot upload to azure Blob Storage: The remote server returned an error: (400) Bad Request
问题描述
我正在尝试创建一个实用程序，以从Internet下载文件并将其再次上传到Azure blob存储.Blob容器已经很好地创建了；但是由于某种原因，当我尝试将文件上传到存储设备时，出现"Bad Request 400"异常.创建了容器名称，小写字母和特殊字符.但是我仍然不知道为什么我会得到例外！
I'm trying to create a utility to download file from the internet and upload it again to Azure blob storage. Blob containers already created well; But for some reason i'm getting "Bad Request 400" exception when i tried to upload the file to storage ... Container name is created, small letters, so special characters. But I still do not know why i'm getting the exception!
请帮助.
注意:
- 我没有使用任何模拟器...直接在云上进行测试.
- 我所有具有公共容器"访问选项的容器.
这里是个例外:
An exception of type 'Microsoft.WindowsAzure.Storage.StorageException'
occurred in Microsoft.WindowsAzure.Storage.dll but was not handled in user code
Additional information: The remote server returned an error: (400) Bad Request.
这是代码:
foreach (var obj in objectsList)
{
var containerName = obj.id.Replace("\"", "").Replace("_", "").Trim();
CloudBlobContainer blobContainer = blobClient.GetContainerReference(containerName);
if (blobContainer.Exists())
{
var fileNamesArr = obj.fileNames.Split(new char[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var sora in fileNamesArr)
{
int soraInt = int.Parse(sora.Replace("\"", ""));
String fileName = String.Format("{0}.mp3", soraInt.ToString("000"));
var url = String.Format("http://{0}/{1}/{2}", obj.hostName.Replace("\"", ""), obj.id.Replace("\"", ""), fileName.Replace("\"", "")).ToLower();
var tempFileName = "temp.mp3";
var downloadedFilePath = Path.Combine(Path.GetTempPath(), tempFileName).ToLower();
var webUtil = new WebUtils(url);
await webUtil.DownloadAsync(url, downloadedFilePath).ContinueWith(task =>
{
var blobRef = blobContainer.GetBlockBlobReference(fileName.ToLower());
blobRef.Properties.ContentType = GetMimeType(downloadedFilePath);
using (var fs = new FileStream(downloadedFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
blobRef.UploadFromStream(fs); // <--- Exception
}
});
}
}
else
{
throw new Exception(obj.id.Replace("\"", "") + " Container not exist!");
}
}
存储异常
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.GetRequestStream(TransportContext& context)在System.Net.HttpWebRequest.GetRequestStream()在Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync [T](RESTCommand <代码> 1 cmd，IRetryPolicy策略，OperationContext operationContext)---内部异常堆栈跟踪的结尾---在Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync [T](RESTCommand 1 cmd，IRetryPolicy策略，OperationContext operationContext)在Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStreamHelper(流源，可空1的长度，AccessCondition accessCondition，BlobRequestOptions选项，OperationContext operationContext)在Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStream(流源，AccessCondition accessCondition，BlobRequestOptions选项，OperationContext operationContext)在TelawatAzureUtility.StorageService中.<> c__DisplayClass4.b__12(任务任务)位于\ psf \ Home \ Documents \ Visual Studio 14 \ Projects \ Telawat Azure Utility \ TelawatAzureUtility \ StorageService.cs:第128行索取资料要求编号:RequestDate:Sat，28 Jun 2014 20:12:14 GMTStatusMessage:错误请求
Microsoft.WindowsAzure.Storage.StorageException: The remote server returned an error: (400) Bad Request. ---> System.Net.WebException: The remote server returned an error: (400) Bad Request. at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) at System.Net.HttpWebRequest.GetRequestStream() at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand
1 cmd, IRetryPolicy policy, OperationContext operationContext) --- End of inner exception stack trace --- at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand1 cmd, IRetryPolicy policy, OperationContext operationContext) at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStreamHelper(Stream source, Nullable`1 length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext) at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStream(Stream source, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext) at TelawatAzureUtility.StorageService.<>c__DisplayClass4.b__12(Task task) in \psf\Home\Documents\Visual Studio 14\Projects\Telawat Azure Utility\TelawatAzureUtility\StorageService.cs:line 128 Request Information RequestID: RequestDate:Sat, 28 Jun 2014 20:12:14 GMT StatusMessage:Bad Request
请求信息:
问题出自WebUtils ..我用下面的代码替换了它，并且有效！我将添加weUtils代码，也许您可以帮助了解它的问题.
Edit 3: The problem comes from WebUtils .. I replaced it with below code and it works! I will add weUtils code, maybe you can help to know what is the problem with it.
HttpClient client = new HttpClient();
var stream = await client.GetStreamAsync(url);
WebUtils代码:
WebUtils Code:
public class WebUtils
{
private Lazy<IWebProxy> proxy;
public WebUtils(String url)
{
proxy = new Lazy<IWebProxy>(() => string.IsNullOrEmpty(url) ? null : new WebProxy {
Address = new Uri(url), UseDefaultCredentials = true });
}
public IWebProxy Proxy
{
get { return proxy.Value; }
}
public Task DownloadAsync(string requestUri, string filename)
{
if (requestUri == null)
throw new ArgumentNullException("requestUri is missing!");
return DownloadAsync(new Uri(requestUri), filename);
}
public async Task DownloadAsync(Uri requestUri, string filename)
{
if (filename == null)
throw new ArgumentNullException("filename is missing!");
if (Proxy != null)
{
WebRequest.DefaultWebProxy = Proxy;
}
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(HttpMethod.Get, requestUri))
{
using (Stream contentStream = await (await httpClient.SendAsync(request)).Content.ReadAsStreamAsync())
{
using (var stream = new FileStream(filename, FileMode.Create, FileAccess.Write))
{
contentStream.CopyTo(stream);
stream.Flush();
stream.Close();
}
contentStream.Close();
}
}
}
}
}
当我尝试这段代码时...等待"将永远不会完成！
Also when I tried this code ... the 'Wait' will never finish or completed!
webUtil.DownloadAsync(url, downloadedFilePath).Wait()
推荐答案
您是否尝试过在Azure门户上手动创建容器?您可以给容器命名的名称有一些限制.
Have you tried creating a container manually on azure portal? It has some limitations on what name you can give containers.
例如:容器名称不能包含大写字母.
For example: Container name cannot contain upper case letters.
如果您请求的容器名称无效，则会导致您收到(400)错误的请求.因此，请检查您的"containerName"字符串.
If you request a container with an invalid name, it will result in (400) Bad Request, which you are getting. So check your "containerName" string.
这篇关于无法上传到Azure Blob存储:远程服务器返回错误:(400)错误的请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
