无法使用模拟器上载文件，控制器出现问题

Question

我正试图在VS2019中创建一个blob库。我创建了一个具有HTTPS配置、.NET core 3.1且没有身份验证的ASP.NET core(MVC(项目。我在Azure中有blob存储，但在这个项目中，我使用的是启用了模拟器的Azure存储资源管理器。当我开始一个项目时，它向我显示了一个好的html页面，我可以选择上传它的按钮工作正常，但当我按下上传按钮时，我会收到错误"；https://localhost:44330/Home/UploadAsync"我认为这可能是由于我在homecontroller中没有看到的一个错误，因为我已经用css文件实现了它和html。

我要补充的是，连接是使用命令"StorageConnectionString": "UseDevelopmentStorage=true"在appsettings.json文件中进行的。在模拟器中之后，我看到了新的文件夹，名称中包含了代码。我正在使用WindowsAzure.Storage软件包。

家庭控制器代码：

namespace WebApplication.Controllers
{
public class HomeController : Controller
{

static CloudBlobClient _blobClient;
const string _blobContainerName = "imagecontainer";
private readonly IConfiguration _configuration;
static CloudBlobContainer _blobContainer;
public HomeController(IConfiguration configuration)
{
_configuration = configuration;
}
public async Task<ActionResult> Index()
{
try
{
var storageConnectionString = _configuration.GetValue<string>("StorageConnectionString");
var storageAccount = CloudStorageAccount.Parse(storageConnectionString);
_blobClient = storageAccount.CreateCloudBlobClient();
_blobContainer = _blobClient.GetContainerReference(_blobContainerName);
await _blobContainer.CreateIfNotExistsAsync();
await _blobContainer.SetPermissionsAsync(new BlobContainerPermissions { PublicAccess = BlobContainerPublicAccessType.Blob });
List<Uri> allBlobs = new List<Uri>();
BlobContinuationToken blobContinuationToken = null;
do
{
var response = await _blobContainer.ListBlobsSegmentedAsync(blobContinuationToken);
foreach (IListBlobItem blob in response.Results)
{
if (blob.GetType() == typeof(CloudBlockBlob))
allBlobs.Add(blob.Uri);
}
blobContinuationToken = response.ContinuationToken;
} while (blobContinuationToken != null);
return View(allBlobs);
}
catch (Exception ex)
{
ViewData["message"] = ex.Message;
ViewData["trace"] = ex.StackTrace;
return View("Error");
}
}
[HttpPost]
public async Task<ActionResult> UploadAsync()
{
try
{
var request = await HttpContext.Request.ReadFormAsync();
if (request.Files == null)
{
return BadRequest("Could not upload files");
}
var files = request.Files;
if (files.Count == 0)
{
return BadRequest("Could not upload empty files");
}
for (int i = 0; i < files.Count; i++)
{
var blob = _blobContainer.GetBlockBlobReference(GetRandomBlobName(files[i].FileName));
using (var stream = files[i].OpenReadStream())
{
await blob.UploadFromStreamAsync(stream);
}
}
return RedirectToAction("Index");
}
catch (Exception ex)
{
ViewData["message"] = ex.Message;
ViewData["trace"] = ex.StackTrace;
return View("Error");
}
}
[HttpPost]
public async Task<ActionResult> DeleteImage(string name)
{
try
{
Uri uri = new Uri(name);
string filename = Path.GetFileName(uri.LocalPath);
var blob = _blobContainer.GetBlockBlobReference(filename);
await blob.DeleteIfExistsAsync();
return RedirectToAction("Index");
}
catch (Exception ex)
{
ViewData["message"] = ex.Message;
ViewData["trace"] = ex.StackTrace;
return View("Error");
}
}
[HttpPost]
public async Task<ActionResult> DeleteAll()
{
try
{
BlobContinuationToken blobContinuationToken = null;
do
{
var response = await _blobContainer.ListBlobsSegmentedAsync(blobContinuationToken);
foreach (IListBlobItem blob in response.Results)
{
if (blob.GetType() == typeof(CloudBlockBlob))
await ((CloudBlockBlob)blob).DeleteIfExistsAsync();
}
blobContinuationToken = response.ContinuationToken;
} while (blobContinuationToken != null);
return RedirectToAction("Index");
}
catch (Exception ex)
{
ViewData["message"] = ex.Message;
ViewData["trace"] = ex.StackTrace;
return View("Error");
}
}

private string GetRandomBlobName(string filename)
{
string ext = Path.GetExtension(filename);
return string.Format("{0:10}_{1}{2}", DateTime.Now.Ticks, Guid.NewGuid(), ext);
}
public IActionResult Privacy()
{
return View();
}
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
}
}

Answer 1

在html文件中将操作重命名为Upload而不是UploadAsync

@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data" }))