在Azure Blob存储中处理上载的Zip文件

Question

我有一个Azure函数，当一个blob被上传到某个目录时会被触发。它处理一个zip文件。当我用Azure storage explorer将文件上传到容器时，它工作得非常好。当我通过网络API上传它时，它爆炸了。如果我下载了这个文件，它似乎已经损坏，但是，它与源文件大小相同，当我在2个文件之间进行超越比较时，它看起来是相同的（超越比较似乎可以看到zip文件的内容）。

这里是上传代码：

public async Task<UploadedFileDescription> StoreCatalog(HttpRequestMessage Request)
{
    UploadedFileDescription upload = new UploadedFileDescription();  // my return description
    var guidString = Guid.NewGuid().ToString();
    string fileName = guidString + ".zip";  //add the .zip extenstion
    upload.fileName = fileName;
    string storageConnection = CloudConfigurationManager.GetSetting("StorageConnectionString");
    CloudStorageAccount cloudStorageAccount = CloudStorageAccount.Parse(storageConnection);
    CloudBlobClient cloudBlobClient = cloudStorageAccount.CreateCloudBlobClient();
    CloudBlobContainer cloudBlobContainer = cloudBlobClient.GetContainerReference("uploadedzips");
    CloudBlockBlob cloudBlockBlob = cloudBlobContainer.GetBlockBlobReference(fileName);
    cloudBlockBlob.Properties.ContentType = "application/x-zip-compressed";
    var stream = await Request.Content.ReadAsStreamAsync();
    cloudBlockBlob.UploadFromStream(stream);
    return upload;
}

文件可以很好地进入blob存储。

然后触发的Azure函数在以下行触发并爆炸：

ZipArchive archive = new ZipArchive(myBlob);
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(destinationStorage);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference(destinationContainer);

var catalogService = Helpers.container.Resolve<ICatalogService>();
foreach (ZipArchiveEntry file in archive.Entries)    <------blows up here with the msg

System.IO.InvalidDataException
  HResult=0x80131501
  Message=Number of entries expected in End Of Central Directory does not correspond to number of entries in Central Directory.
  Source=System.IO.Compression
  StackTrace:
   at System.IO.Compression.ZipArchive.ReadCentralDirectory()
   at System.IO.Compression.ZipArchive.get_Entries()
   at DentaCAD.AzureFunctions.ProcessUploadedZip.Run(Stream myBlob, String name, TraceWriter log) in C:\repo\ProcessUploadedZip.cs:line 35
   at Microsoft.Azure.WebJobs.Host.Executors.VoidMethodInvoker`2.InvokeAsync(TReflected instance, Object[] arguments)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2.<InvokeAsync>d__9.MoveNext()

当手动上传文件时，这一行被击中时，存档中有163个条目（都是小jpg文件）

有什么想法吗？

Answer 1

这可能是一个错误的MIME类型的问题。尝试将内容类型更改为“application/zip”，而不是“application/x-zip-compressed”