Question

我正在尝试从MVC应用上传文件到blob Azure，我正在关注this教程，我陷入了这个片段：

using (var fileStream = System.IO.File.OpenRead(@"path\myfile"))
{
    blockBlob.UploadFromStream(fileStream);
}

如何使@"path\myfile"动态？如何检索我的文件的真实路径放在那里？我也接受任何其他建议上传到blob：）

更新

根据建议，我在视图中添加了代码：

@model RiPSShared.Models.RiPSModels.AgencyNote

<h2>PostFile</h2>

<form action="@Url.Action("PostFile", "AgencyNotes", new { NoteId=Model.aut_id})" method = "post" enctype="multipart/form-data">
    <label for="file1"> File name:</label>
    <input type="file" name="file" id="file1" />
    <input type="submit" value="Submit" />    
</form>

完整的动作控制器：

 public ActionResult PostFile(HttpPostedFileBase file, int NoteId)
 {
 CloudBlockBlob blockBlob = container.GetBlockBlobReference(path);
 using (Stream fileStream = file.InputStream)
            {
                blockBlob.UploadFromStream(fileStream);
            }
 return RedirectToAction("Index");
}

Answer 1

HttpPostedFileBase将获得您需要的信息。具体来说，InputStream属性将为您提供流

[HttpPost]
public ActionResult PostFile(HttpPostedFileBase file, int NoteId)  
{   
    // Your existing code for azure blob access
    CloudBlockBlob blockBlob = container.GetBlockBlobReference("myblob");
    // make sure to a null check on file parameter before accessing the InputStream

    using (var s = file.InputStream)
    {
       blockBlob.UploadFromStream(s);
    }
    // to do :Return something
}

Answer 2

您还可以在配置文件中设置连接字符串并从中获取并将文件存储到blob存储中，首先获取其容器名称

     //StorageConnectionString string specified in configuration file
       CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
        CloudConfigurationManager.GetSetting("StorageConnectionString"));

        // Create the blob client.
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

        // Retrieve a reference to a container.
        //specified container name
        CloudBlobContainer container = blobClient.GetContainerReference("myBlobcontainer");

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

        container.SetPermissions(
        new BlobContainerPermissions { PublicAccess = BlobContainerPublicAccessType.Blob });

        CloudBlockBlob blockBlob = container.GetBlockBlobReference("myBlob");

        // Create or overwrite the "myblob" blob with contents from a local file.
      using (var fileStream = file.InputStream)
        {
            blockBlob.UploadFromStream(fileStream);
        }

将文件上传到Blob Azure

2 个答案: