Question

我正在使用Azure SDK v2.1.0.0。我在CloudBlockBlob类中找到了一个名为DownloadRangeToByteArray的方法，但遗憾的是我在在线MSDN中找不到任何关于它的文档？

关于它的使用，约束，线程安全的任何想法？

Answer 1

从Azure存储客户端库的GitHub存储库https://github.com/WindowsAzure/azure-sdk-for-net/blob/583799d5238ffb72b8d9244604558a83ed4372f8/microsoft-azure-api/Services/Storage/Lib/DotNetCommon/Blob/ICloudBlob.cs：

    /// <summary>
    /// Downloads the contents of a blob to a byte array.
    /// </summary>
    /// <param name="target">The target byte array.</param>
    /// <param name="index">The starting offset in the byte array.</param>
    /// <param name="blobOffset">The starting offset of the data range, in bytes.</param>
    /// <param name="length">The length of the data range, in bytes.</param>
    /// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the access conditions for the blob.</param>
    /// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies any additional options for the request.</param>
    /// <param name="operationContext">An <see cref="OperationContext"/> object that represents the context for the current operation.</param>
    /// <returns>The total number of bytes read into the buffer.</returns>
    int DownloadRangeToByteArray(byte[] target, int index, long? blobOffset, long? length, AccessCondition accessCondition = null, BlobRequestOptions options = null, OperationContext operationContext = null);

Answer 2

我为延迟道歉，内部出版链中存在导致文档被搁置的问题。他们应该很快出去。

同时上面的GitHub信息是正确的，这个方法的想法是它允许你指定blob字节的范围（而不是整个blob）直接下载到给定索引的字节数组中。

CloudBlockBlob中的DownloadRangeToByteArray方法

2 个答案: