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CloudAppendBlob.BeginUploadFromFile 方法

参考

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

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

重载

BeginUploadFromFile(String, AsyncCallback, Object)	开始异步操作，将文件上传到追加 Blob。如果 Blob 已存在，则会覆盖该 Blob。建议仅用于单编写器方案。
BeginUploadFromFile(String, AccessCondition, BlobRequestOptions, OperationContext, AsyncCallback, Object)	开始异步操作，将文件上传到追加 Blob。如果 Blob 已存在，则会覆盖该 Blob。建议仅用于单编写器方案。

BeginUploadFromFile(String, AsyncCallback, Object)

开始异步操作，将文件上传到追加 Blob。如果 Blob 已存在，则会覆盖该 Blob。建议仅用于单编写器方案。

[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginUploadFromFile (string path, AsyncCallback callback, object state);

[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginUploadFromFile : string * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginUploadFromFile : string * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult

Public Overridable Function BeginUploadFromFile (path As String, callback As AsyncCallback, state As Object) As ICancellableAsyncResult

参数

path: String

包含提供 Blob 内容的文件路径的字符串。

callback: AsyncCallback

在 AsyncCallback 异步操作完成时接收通知的委托。

state: Object

将传递给回调委托的用户定义对象。

ICancellableAsyncResult

引用 ICancellableAsyncResult 异步操作的。

实现

BeginUploadFromFile(String, AsyncCallback, Object)

属性: DoesServiceRequestAttribute

注解

仅在单编写器方案中使用此方法。在内部，此方法使用追加-偏移条件标头来避免重复块，这可能会导致多编写器方案中的问题。如果你有单编写器方案，请参阅 AbsorbConditionalErrorsOnRetry 确定将此标志设置为 true 对于你的方案是否可接受。若要将数据追加到已存在的追加 Blob，请参阅 BeginAppendFromFile(String, AsyncCallback, Object)。

适用于

BeginUploadFromFile(String, AccessCondition, BlobRequestOptions, OperationContext, AsyncCallback, Object)

开始异步操作，将文件上传到追加 Blob。如果 Blob 已存在，则会覆盖该 Blob。建议仅用于单编写器方案。

[Microsoft.Azure.Storage.DoesServiceRequest]
public virtual Microsoft.Azure.Storage.ICancellableAsyncResult BeginUploadFromFile (string path, Microsoft.Azure.Storage.AccessCondition accessCondition, Microsoft.Azure.Storage.Blob.BlobRequestOptions options, Microsoft.Azure.Storage.OperationContext operationContext, AsyncCallback callback, object state);

[<Microsoft.Azure.Storage.DoesServiceRequest>]
abstract member BeginUploadFromFile : string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult
override this.BeginUploadFromFile : string * Microsoft.Azure.Storage.AccessCondition * Microsoft.Azure.Storage.Blob.BlobRequestOptions * Microsoft.Azure.Storage.OperationContext * AsyncCallback * obj -> Microsoft.Azure.Storage.ICancellableAsyncResult

Public Overridable Function BeginUploadFromFile (path As String, accessCondition As AccessCondition, options As BlobRequestOptions, operationContext As OperationContext, callback As AsyncCallback, state As Object) As ICancellableAsyncResult