C# 从 HttpPostedFileBase 获取文件路径
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Getting the file path from HttpPostedFileBase
提问by Traffy
I'm working with ASP.NET MVC 4 and I'm trying to get the path of an uploaded file in order to open and manipulate it. This is how I proceed :
我正在使用 ASP.NET MVC 4，我正在尝试获取上传文件的路径以便打开和操作它。这就是我继续的方式：
Controller
控制器
public ActionResult Bulk(HttpPostedFileBase file)
{
FileStream fs = System.IO.File.Open(Server.MapPath(file.FileName),
FileMode.Open, FileAccess.Read);
return RedirectToAction("Index");
}
View
看法
@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
@using (Html.BeginForm("Bulk", "Bulk", null, FormMethod.Post, new
{ enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
<p>
<input type="file" name="file"/>
</p>
<div class="form-actions">
<button type="submit" class="btn btn-primary">Create</button>
</div>
</fieldset>
}
When I'm doing that, I get an error which says ... Could not find a part of the path ...
当我这样做时，我收到一个错误，说... Could not find a part of the path ...
How can I get the path where my file is actually located?
如何获取文件实际所在的路径？
采纳答案by sky
Can't comment as I don't have enough reputation ... :(
无法评论，因为我没有足够的声誉...... :(
Does the folder ...
文件夹是否...
C:\Users\maab\Desktop\2013-05-10_BuSI Material Project -Last\BuSIMaterial\BuSIMaterial\App_Data\uploads
C:\Users\maab\Desktop\2013-05-10_BuSI Material Project -Last\BuSIMaterial\BuSIMaterial\App_Data\uploads
exist? If not, try to create it manually and try your upload again.
存在？如果没有，请尝试手动创建并再次尝试上传。
回答by shawad
As I understand, you need to upload the file to the server before opening it e.g.
据我了解，您需要在打开文件之前将文件上传到服务器，例如
if (file != null && file.ContentLength > 0)
{
// extract only the fielname
var fileName = Path.GetFileName(file.FileName);
// store the file inside ~/App_Data/uploads folder
var path = Path.Combine(Server.MapPath("~/App_Data/uploads"), fileName);
file.SaveAs(path);
}
I took the above from a similar question's answer by Chance and Darin Dimitrov : File Upload ASP.NET MVC 3.0
我从 Chance 和 Darin Dimitrov 的类似问题的回答中获取了上述内容：文件上传 ASP.NET MVC 3.0
This answer additionally references the usefull blog post Uploading a File (Or Files) With ASP.NET MVC
这个答案还引用了有用的博客文章Uploading a File (Or Files) With ASP.NET MVC
