无法 post 到 Azure 存储？无效路径错误

Question

我正在尝试添加我收到的这样的图像。

[FunctionName("Imageupload")]
public static async System.Threading.Tasks.Task<HttpResponseMessage> RunAsync([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = "HttpTriggerCSharp/name/{name}")]HttpRequestMessage req, string name, TraceWriter log)
{
    //Check if the request contains multipart/form-data.
    if (!req.Content.IsMimeMultipartContent())
    {
        return req.CreateResponse(HttpStatusCode.UnsupportedMediaType);
    }

    var storageConnectionString = "XXXXXXXXXXXXXXXXXXX";

    var storageAccount = CloudStorageAccount.Parse(storageConnectionString);
        log.Info(storageConnectionString);
    var blobClient = storageAccount.CreateCloudBlobClient();

    // Retrieve a reference to a container.
    CloudBlobContainer container = blobClient.GetContainerReference("temporary-images");

    // Create the container if it doesn't already exist.
    container.CreateIfNotExists();

    //Retrieve reference to a blob named "myblob".
    CloudBlockBlob blockBlob = container.GetBlockBlobReference("images");

    try
    {
        string root = blockBlob.Uri.AbsoluteUri;
        var provider2 = new MultipartFormDataStreamProvider(root);
        await req.Content.ReadAsMultipartAsync(provider);
    }
    catch (StorageException e)
    {
        return req.CreateErrorResponse(HttpStatusCode.NotFound,e.Message);
    }
}

我使用的路径是正确的，我检查过它指向存储容器。

如何将收到的图像发送到 Azure 存储？

我收到路径格式不受支持的错误。

我的路径是这样的：“https://XXXXXXXXXXX.blob.core.windows.net/temporary-images/images”

Answer 1

您的 await req.Content.ReadAsMultipartAsync(provider); 已传入 provider，但上面的行表明 provider2 是变量。有没有可能你不小心在别处定义了 provider 而它是无效的？通常当我得到一个 something2 时，它表明我正在努力让某事发挥作用并且害怕失去最初的想法。

如果您改为传入 provider2，它是否也会失败？

Answer 2

I recieve the error that the path's format is not supported.

由于 MultipartFormDataStreamProvider 请求本地文件路径作为参数，因此 blob 地址 http/https 无效。

如果要将多个文件上传到 Azure 存储容器，请尝试使用 req.Content.ReadAsMultipartAsync(); 和 blockBlob.UploadFromStream(stream); 将文件上传到 Azure 存储 blob。我做了一个演示，它在我这边运行正常。

 if (!req.Content.IsMimeMultipartContent())
 {
     return req.CreateResponse(HttpStatusCode.UnsupportedMediaType);
 }
 var storageConnectionString = "connection string";
 var storageAccount = CloudStorageAccount.Parse(storageConnectionString);
 log.Info(storageConnectionString);
 var blobClient = storageAccount.CreateCloudBlobClient();
 CloudBlobContainer container = blobClient.GetContainerReference("temporary-images");
 container.CreateIfNotExists();
 try
 {
    var filesReadToProvider = await req.Content.ReadAsMultipartAsync();
    foreach (var stream in filesReadToProvider.Contents)
    {
       var blobName = stream.Headers.ContentDisposition.FileName.Trim('"');
       CloudBlockBlob blockBlob = container.GetBlockBlobReference(blobName);          
       blockBlob.UploadFromStream(stream.ReadAsStreamAsync().Result);

    }

 }
 catch (StorageException e)
 {
        return req.CreateErrorResponse(HttpStatusCode.NotFound, e.Message);
 }

无法 post 到 Azure 存储？无效路径错误

Cant post to Azure storage? Invalid Path error

c#

multipartform-data

azure

azure-storage

azure-blob-storage