c# - 具有 SAS token 的 StorageCredentials 的 CloudStorageAccount

Question

Following this Microsoft guide

我尝试使用 sasToken 凭据获取对容器的引用。

我创建了一个 sas token ，然后创建了凭据:(更改了 sas token 中的一些字母...)

public static StorageCredentials GetContainerCredentials()
{
    string sasToken = "?sv=2014-02-14&sr=c&si=read%20only%20policy&sig=JpCYrvZPXuVqlflu6BOZMh2MxfghoJt8GMDyVY7HOkk%3D";
    return new StorageCredentials(sasToken);
}

使用凭据的代码:

public bool Init(string ContainerName, StorageCredentials credentials)
{
    try
    {
        m_containerName = ContainerName;
        CloudStorageAccount storageAccount = new CloudStorageAccount(credentials, useHttps: true);

        if (null == storageAccount)
        {
            Console.WriteLine("storageAccount is null");
            return false;
        }

        // Create the blob client.
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

        if (null == blobClient)
        {
            Console.WriteLine("blobClient is null");
            return false;
        }

        // Retrieve a reference to a container. 
        m_container = blobClient.GetContainerReference(ContainerName);

        Console.WriteLine("Init success");

        return true;
    }
    catch (Exception ex)
    {               
        Console.WriteLine("Azure init exception: " + ex.Message);
    }
    m_container = null;
    return false;
}

运行代码时出现异常:

CloudStorageAccount storageAccount = new CloudStorageAccount(credentials, useHttps: true);  

异常:

System.ArgumentNullException: Value cannot be null.
Parameter name: accountName

我发现 StorageCredentials 构造函数没有重载，它接受 sasToken 和帐户名称。

感谢任何帮助。

汤姆

Answer 1

static void UseAccountSAS(string sasToken)
{
    // Create new storage credentials using the SAS token.
    StorageCredentials accountSAS = new StorageCredentials(sasToken);

    // Use these credentials and the account name to create a Blob service client.
    CloudStorageAccount accountWithSAS = new CloudStorageAccount(accountSAS, "accountname", endpointSuffix: null, useHttps: true);

注意:“accountname”是您的 Azure 存储帐户的名称，如端点“https://accountname.blob.core.windows.net”中所示。

来源:https://learn.microsoft.com/en-us/azure/storage/common/storage-dotnet-shared-access-signature-part-1?toc=%2fazure%2fstorage%2fblobs%2ftoc.json