C# 使用共享访问密钥上载到Azure Blob存储
UPD:这是我的 我正在尝试通过Azure.storage library(不是RESTAPI)上传到Azure blob存储,并通过共享访问密钥进行身份验证 我已经看到了这一点,但API自发布以来发生了变化,现在我无法得到相同的结果 以下是我所拥有的:C# 使用共享访问密钥上载到Azure Blob存储,c#,azure,azure-storage,azure-storage-blobs,C#,Azure,Azure Storage,Azure Storage Blobs,UPD:这是我的 我正在尝试通过Azure.storage library(不是RESTAPI)上传到Azure blob存储,并通过共享访问密钥进行身份验证 我已经看到了这一点,但API自发布以来发生了变化,现在我无法得到相同的结果 以下是我所拥有的: var blobClient = new CloudBlobClient(new Uri(blobWithSas.BaseUri), new StorageCredentials(blobWithSas.Sas)); // here I r
var blobClient = new CloudBlobClient(new Uri(blobWithSas.BaseUri), new StorageCredentials(blobWithSas.Sas));
// here I receive 404 error
var blob = blobClient.GetBlobReferenceFromServer(new Uri(blobWithSas.AbsoluteUri));
using (var stream = new FileStream(fullFilePath, FileMode.Open))
{
blob.UploadFromStream(stream);
}
具有:
blobWithSas.BaseUri
=http://127.0.0.1:10000/devstoreaccount1/a6dc9274-6ce1-4095-be6b-e84d1012cb24
(Guid是在其他地方创建的已存在容器的名称。)
blobWithSas.Sas
=?sv=2012-02-12&se=2013-06-23T03%3A04%3A53Z&sr=b&sp=w&sig=NaMqgXRMXDFvLAp8LTskgplAKp%2B9LCZzq8WK9Zo35x8%3D
(也在代码的其他地方发布)
blobWithSas.AbsoluteUri
=http://127.0.0.1:10000/devstoreaccount1/a6dc9274-6ce1-4095-be6b-e84d1012cb24/foldername/filename.txt
blob不存在,我想上载新文件并创建blob。我有“服务器”应用程序持有Azure存储帐户的访问密钥。服务器将向客户端发送SAS,客户端将文件直接上载到Azure。所以SAS将只进行写操作,而不进行读操作,客户端将在服务器指示的位置创建文件(容器、文件夹名称)
问题出现在GetBlobReferenceFromServer
-我从Azure存储中得到404错误。是的,blob不存在,也没有引用。因此,给定CloudBlobClient,如何将文件上载到blob
p、 我意识到这些东西有RESTAPI。但我以前使用过Microsoft.WindowsAzure.Storage
library,如果可能的话,我希望避免使用REST服务
问题出现在GetBlobReferenceFromServer上-我得到404错误
来自Azure存储。是的,blob不存在,也不存在
参考资料。因此,给定CloudBlobClient,如何将文件上载到
斑点
要使GetBlobReferenceFromServer
正常工作,blob必须存在于blob存储中。当您知道blob存在于存储器中并且想要找出blob的类型时,这在场景中非常有用-块blob
或页面blob
如果要通过从本地计算机上载文件来创建块blob,可以执行以下操作:
var blob = new CloudBlockBlob(new Uri(blobWithSas.AbsoluteUri), new StorageCredentials(blobWithSas.Sas));
using (var stream = new FileStream(fullFilePath, FileMode.Open))
{
blob.UploadFromStream(stream);
}
谈到共享访问签名功能,不久前我写了一篇关于此的博客文章:。你可以称之为史蒂夫博客文章的第二版:)。我已经展示了使用RESTAPI和Storage Client Library 2.0上传具有共享访问签名的blob的示例
博客文章中的一些代码示例:
使用存储客户端库:
/// <summary>
/// Uploads a blob in a blob container where SAS permission is defined on a blob container using storage client library.
/// </summary>
/// <param name="blobContainerSasUri"></param>
static void UploadBlobWithStorageClientLibrarySasPermissionOnBlobContainer(string blobContainerSasUri)
{
CloudBlobContainer blobContainer = new CloudBlobContainer(new Uri(blobContainerSasUri));
CloudBlockBlob blob = blobContainer.GetBlockBlobReference("sample.txt");
string sampleContent = "This is sample text.";
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(sampleContent)))
{
blob.UploadFromStream(ms);
}
}
/// <summary>
/// Uploads a blob in a blob container where SAS permission is defined on a blob container using REST API.
/// </summary>
/// <param name="blobContainerSasUri"></param>
static void UploadBlobWithRestAPISasPermissionOnBlobContainer(string blobContainerSasUri)
{
string blobName = "sample.txt";
string sampleContent = "This is sample text.";
int contentLength = Encoding.UTF8.GetByteCount(sampleContent);
string queryString = (new Uri(blobContainerSasUri)).Query;
string blobContainerUri = blobContainerSasUri.Split('?')[0];
string requestUri = string.Format(CultureInfo.InvariantCulture, "{0}/{1}{2}", blobContainerUri, blobName, queryString);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
request.Method = "PUT";
request.Headers.Add("x-ms-blob-type", "BlockBlob");
request.ContentLength = contentLength;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(Encoding.UTF8.GetBytes(sampleContent), 0, contentLength);
}
using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse())
{
}
}
//
///上载blob容器中的blob,其中使用存储客户端库在blob容器上定义了SAS权限。
///
///
静态无效上载BlobWithStorageClientLibrarySApprovisionBlobContainer(字符串BlobContainerAsuri)
{
CloudBlobContainer blobContainer=新的CloudBlobContainer(新Uri(BlobContainerAsuri));
CloudBlockBlob blob=blobContainer.GetBlockBlobReference(“sample.txt”);
string sampleContent=“这是示例文本。”;
使用(MemoryStream ms=new MemoryStream(Encoding.UTF8.GetBytes(sampleContent)))
{
blob.UploadFromStream(毫秒);
}
}
使用RESTAPI:
/// <summary>
/// Uploads a blob in a blob container where SAS permission is defined on a blob container using storage client library.
/// </summary>
/// <param name="blobContainerSasUri"></param>
static void UploadBlobWithStorageClientLibrarySasPermissionOnBlobContainer(string blobContainerSasUri)
{
CloudBlobContainer blobContainer = new CloudBlobContainer(new Uri(blobContainerSasUri));
CloudBlockBlob blob = blobContainer.GetBlockBlobReference("sample.txt");
string sampleContent = "This is sample text.";
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(sampleContent)))
{
blob.UploadFromStream(ms);
}
}
/// <summary>
/// Uploads a blob in a blob container where SAS permission is defined on a blob container using REST API.
/// </summary>
/// <param name="blobContainerSasUri"></param>
static void UploadBlobWithRestAPISasPermissionOnBlobContainer(string blobContainerSasUri)
{
string blobName = "sample.txt";
string sampleContent = "This is sample text.";
int contentLength = Encoding.UTF8.GetByteCount(sampleContent);
string queryString = (new Uri(blobContainerSasUri)).Query;
string blobContainerUri = blobContainerSasUri.Split('?')[0];
string requestUri = string.Format(CultureInfo.InvariantCulture, "{0}/{1}{2}", blobContainerUri, blobName, queryString);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
request.Method = "PUT";
request.Headers.Add("x-ms-blob-type", "BlockBlob");
request.ContentLength = contentLength;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(Encoding.UTF8.GetBytes(sampleContent), 0, contentLength);
}
using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse())
{
}
}
//
///上载blob容器中的blob,其中使用RESTAPI在blob容器上定义了SAS权限。
///
///
静态无效上载BlobWithRestapisAspermissionBlobContainer(字符串BlobContainerAsuri)
{
字符串blobName=“sample.txt”;
string sampleContent=“这是示例文本。”;
int contentLength=Encoding.UTF8.GetByteCount(sampleContent);
字符串queryString=(新Uri(blobContainerSasUri)).Query;
字符串blobContainerUri=BlobContainerAsuri.Split('?')[0];
string requestUri=string.Format(CultureInfo.InvariantCulture,“{0}/{1}{2}”、BlobContaineUri、blobName、queryString);
HttpWebRequest request=(HttpWebRequest)WebRequest.Create(requestUri);
request.Method=“PUT”;
添加(“x-ms-blob-type”、“BlockBlob”);
request.ContentLength=ContentLength;
使用(Stream requestStream=request.GetRequestStream())
{
Write(Encoding.UTF8.GetBytes(sampleContent),0,contentLength);
}
使用(HttpWebResponse resp=(HttpWebResponse)request.GetResponse())
{
}
}
您可能还会发现这篇博文很有用:谢谢!你是个明星!我没有使用SAS创建容器对象。我发现queryString是URL编码的,而BlobContainerAsuri不是,这使得子字符串调用无法正常工作。将该行替换为
字符串blobContainerUri=blobContainerSasUri.Split('?')[0]代码>