StorageCredentials creden = new StorageCredentials(AccountNameAzure, AccessKeyAzure);
CloudStorageAccount storageAccount = new CloudStorageAccount(creden, useHttps: true);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
//CloudBlobContainer cont = blobClient.GetContainerReference(SourceContainerName);
//Get a reference to the container where we have our zip file as well as reference to the file itself.
// Retrieve reference to a zip file container.
CloudBlobContainer container = blobClient.GetContainerReference(SourceContainerName);
// Retrieve reference to the blob - zip file which we wanted to extract
Console.WriteLine("SourceContainerName:" + SourceContainerName + "\n");
CloudBlockBlob blockBlob = container.GetBlockBlobReference("ABCD.zip");
//Now also get a reference to the container where you wanted to extract the files to and create the container in Storage Account if it is not exists already.
//Retrieve reference to a container where you wanted to extract the zip file.
Console.WriteLine("TargetContainerName:"+ TargetContainerName);
var extractcontainer = blockBlob.ServiceClient.GetContainerReference(TargetContainerName);
extractcontainer.CreateIfNotExists();
// As we have both source and target container references are setup, let’s download the zip file blob into a memory stream and and pass it on to ZipArchive class which is from System.IO.Compression namespace.
// ZipArchive will take this memory stream as input and will provide a collection of entries property where in each entry represents an individual file in it.
Console.WriteLine("Starting Unzip: "+DateTime.Now);
// Save blob(zip file) contents to a Memory Stream.
using (var zipBlobFileStream = new MemoryStream())
{
blockBlob.DownloadToStream(zipBlobFileStream);
zipBlobFileStream.Flush();
zipBlobFileStream.Position = 0;
//use ZipArchive from System.IO.Compression to extract all the files from zip file
using (var zip = new ZipArchive(zipBlobFileStream))
{
//Each entry here represents an individual file or a folder
foreach (var entry in zip.Entries)
{
Console.WriteLine(entry.FullName+"\n");
Console.WriteLine("File unzip start: " + DateTime.Now+"\n");
//creating an empty file (blobkBlob) for the actual file with the same name of file
var blob = extractcontainer.GetBlockBlobReference(entry.FullName);
using (var stream = entry.Open())
{
//check for file or folder and update the above blob reference with actual content from stream
if (entry.Length > 0)
blob.UploadFromStream(stream);
}
Console.WriteLine("File unzip end: " + DateTime.Now + "\n");
}
}
}
找不到解决方案了。而是使用（var zipBlobFileStream = new FileStream（Path.GetTempFileName（），FileMode.Create，FileAccess.ReadWrite，FileShare.None，4096，FileOptions.DeleteOnClose））并将文件流下载到临时文件夹中