Question

我正在使用HttpPostedFileBase来上传MVC中的文件。我一次上传5个文件时工作正常。但是当我选择超过5个文件时，即使是6个文件，它也无法正常工作，保存功能也无法正常工作。

这是我的ActionMethod，用于通过上传文件保存其他数据。

ActionMethod

[HttpPost]
public ActionResult AddEditCoffinCasketItem(CoffinCasketItemModel model)
{            
    if (ModelState.IsValid)
    {                
        // Some code

        if (coffinData.ID > 0)
        {
            if (model.Image != null)
            {
                coffinData.ThumbImageUrl = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.Image);
            }

            if (model.Image360 != null)
            {
                coffinData.Image360FileSize = CommonHelper.ToKiloBytes(model.Image360.ContentLength);
                coffinData.Image360Url = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.Image360);
            }
        }
        else
        {
            coffinData.ThumbImageUrl = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.Image);
            if (model.Image360 != null)
            {
                coffinData.Image360FileSize = CommonHelper.ToKiloBytes(model.Image360.ContentLength);
                coffinData.Image360Url = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.Image360);
            }

            if (model.IsBuildYourOwn == true)
            {
                coffinData.TopImageUrl = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.TopImage);
                coffinData.BottomImageUrl = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), model.BottomImage);
            }
        }

        int id = this.coffinService.SaveCoffin(coffinData);

        foreach (HttpPostedFileBase item in model.LargeImage)
        {
            if (item != null)
            {
                CoffinCasketImage coffinImage = new CoffinCasketImage();

                coffinImage.LargeImageUrl = CommonHelper.UploadFile(SystemEnum.EntityType.Coffin.ToString(), item);
                int coffinImageId = this.coffinService.SaveCoffinLargeImage(coffinImage);
            }
        }

        this.TempData["msg"] = string.Format(Messages.MessageTypeSave, ExtentionMethods.GetEnumDescription(SystemEnum.Category.Coffin.GetHashCode() == model.CategoryId ? SystemEnum.EntityType.CoffinItem : SystemEnum.EntityType.CasketItem));
        this.TempData["status"] = SystemEnum.MessageType.success.GetHashCode();
        return this.RedirectToAction("Index", "Coffin", new { categoryId = model.CategoryId });
    }
}

UploadFile方法

public static string UploadFile(string uploadDir, HttpPostedFileBase file)
{
    string fileName = string.Empty;
    try
    {
        if (file != null && file.ContentLength > 0)
        {
            DateTime dt = DateTime.Now;
            string second = dt.Day + "_" + dt.Month + "_" + dt.Year + "_" + dt.Hour + "_" + dt.Minute + "_" + dt.Second;
            fileName = Path.GetFileNameWithoutExtension(file.FileName) + second + Path.GetExtension(file.FileName);
            string serverPath = HttpContext.Current.Server.MapPath(@"~/Upload/");
            string filePath = Path.Combine(serverPath, uploadDir, fileName);
            if (!Directory.Exists(Path.Combine(serverPath, uploadDir)))
            {
                Directory.CreateDirectory(Path.Combine(serverPath, uploadDir));
            }

            file.SaveAs(filePath);
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }

    return "/Upload/" + uploadDir + "/" + fileName;
}

的Web.config

<system.web>
    // other stuff
    <httpRuntime targetFramework="4.5.1" maxRequestLength ="2097151"/>
</system.web>
<system.webServer>
    <security>
        <requestFiltering>
            <!-- Limit file uploads to 55MB -->
            <requestLimits maxAllowedContentLength="57671680"/>
        </requestFiltering>
    </security>
</system.webServer>

如何处理这个问题？

Answer 1

我过去遇到过同样的问题。现在我正在使用Http-Multipart-Data-Parser，其中所有图像都合并在单个流对象中。
请参阅此页：https://github.com/Vodurden/Http-Multipart-Data-Parser

public string UploadImages(Stream imgstram)
    {
        var parser = new MultipartFormDataParser(imgstram);
        foreach (var file in parser.Files)
        {
            //file => stream of single image.
            //convert stream to image
        }
    }

ASP.NET MVC - 无法上传超过5个文件

1 个答案: