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CloudBlockBlob.UploadFromFile 方法

定义

命名空间:

Microsoft.Azure.Storage.Blob

程序集:

Microsoft.Azure.Storage.Blob.dll

包:

Microsoft.Azure.Storage.Blob v11.2.3

将文件上传到 Blob 服务。 如果 Blob 已存在，则会覆盖该 Blob。

[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual void UploadFromFile (string path, Microsoft.Azure.Storage.AccessCondition accessCondition = default, Microsoft.Azure.Storage.Blob.BlobRequestOptions options = default, Microsoft.Azure.Storage.OperationContext operationContext = default);

[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member UploadFromFile : string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> unit
override this.UploadFromFile : string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext -> unit

Public Overridable Sub UploadFromFile (path As String, Optional accessCondition As AccessCondition = Nothing, Optional options As BlobRequestOptions = Nothing, Optional operationContext As OperationContext = Nothing)

参数

path

String

包含提供 Blob 内容的文件路径的字符串。

accessCondition

AccessCondition

一个 AccessCondition 对象，表示继续处理请求而必须满足的条件。

options

BlobRequestOptions

一个 BlobRequestOptions 对象，它指定请求的其他选项。 如果 null为 ，则默认选项应用于请求。

operationContext

OperationContext

一个 OperationContext 对象，它一个表示当前操作的上下文。

实现

UploadFromFile(String, AccessCondition, BlobRequestOptions, OperationContext)

属性

DoesServiceRequestAttribute

示例

// This is one common way of creating a CloudStorageAccount object. You can get 
// your Storage Account Name and Key from the Azure Portal.
StorageCredentials credentials = new StorageCredentials(accountName, accountKey);
CloudStorageAccount storageAccount = new CloudStorageAccount(credentials, useHttps: true);

// Another common way to create a CloudStorageAccount object is to use a connection string:
// CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);

CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

// This call creates a local CloudBlobContainer object, but does not make a network call
// to the Azure Storage Service. The container on the service that this object represents may
// or may not exist at this point. If it does exist, the properties will not yet have been
// popluated on this object.
CloudBlobContainer blobContainer = blobClient.GetContainerReference(containerName);

// This makes an actual service call to the Azure Storage service. Unless this call fails,
// the container will have been created.
blobContainer.Create();

// This also does not make a service call, it only creates a local object.
CloudBlockBlob blob = blobContainer.GetBlockBlobReference(blobName);

// This transfers data in the file to the blob on the service.
blob.UploadFromFile(inputFileName);