C# 如何将字节数组（即 byte[]）保存到 Azure Blob 存储？
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How do I save byte arrays i.e. byte[] to Azure Blob Storage?
提问by Shane
I know how to save Streams, but I want to take that stream and create thumbnails and other sized images, but I don't know how to save a byte[] to the Azure Blob Storage.
我知道如何保存流，但我想获取该流并创建缩略图和其他大小的图像，但我不知道如何将字节 [] 保存到 Azure Blob 存储。
This is what I'm doing now to save the Stream:
这就是我现在为保存 Stream 所做的：
// Retrieve reference to a blob named "myblob".
CloudBlockBlob _blockBlob = container.GetBlockBlobReference("SampleImage.jpg");
// upload from Stream object during file upload
blockBlob.UploadFromStream(stream);
// But what about pushing a byte[] array? I want to thumbnail and do some image manipulation
采纳答案by Rob Church
This used to be in the Storage Client library (version 1.7 for sure) - but they removed it in version 2.0
这曾经在 Storage Client 库中（肯定是 1.7 版） - 但他们在 2.0 版中删除了它
"All upload and download methods are now stream based, the FromFile, ByteArray, Text overloads have been removed."
“所有上传和下载方法现在都是基于流的，FromFile、ByteArray、Text 重载已被删除。”
Creating a read-only memory stream around the byte array is pretty lightweight though:
但是，围绕字节数组创建只读内存流非常轻巧：
byte[] data = new byte[] { 1, 2, 3 };
using(var stream = new MemoryStream(data, writable: false)) {
blockBlob.UploadFromStream(stream);
}
Update: UploadFromByteArray is back
更新：UploadFromByteArray 回来了
MSDN documentation- from what I can tell in the source code, this came back for version 3.0 and is still there for version 4.0.
回答by spender
I also know nothing about Azure, but using Streams, you could approach it as follows:
我也对 Azure 一无所知，但是使用 Streams，您可以按如下方式进行处理：
//byte[] data;
using(var ms = new MemoryStream(data, false))
{
blockBlob.UploadFromStream(ms);
}
回答by QFDev
This is the function I currently use:
这是我目前使用的功能：
//CREATE FILE FROM BYTE ARRAY
public static string createFileFromBytes(string containerName, string filePath, byte[] byteArray)
{
try {
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(ConfigurationManager.ConnectionStrings("StorageConnectionString").ConnectionString);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference(containerName);
if (container.Exists == true) {
CloudBlockBlob blockBlob = container.GetBlockBlobReference(filePath);
try {
using (memoryStream == new System.IO.MemoryStream(byteArray)) {
blockBlob.UploadFromStream(memoryStream);
}
return "";
} catch (Exception ex) {
return ex.Message.ToString();
}
} else {
return "Container does not exist";
}
} catch (Exception ex) {
return ex.Message.ToString();
}
}
回答by iceburg
update:
更新：
UploadFromByteArray is back.
UploadFromByteArray 回来了。
public void UploadFromByteArray (
byte[] buffer,
int index,
int count,
[OptionalAttribute] AccessCondition accessCondition,
[OptionalAttribute] BlobRequestOptions options,
[OptionalAttribute] OperationContext operationContext
)
