Question

有标记

     <div>
        @using (Html.BeginForm("Upload","Resume", FormMethod.Post, new { enctype = "multipart/form-data" }))
        { @Html.AntiForgeryToken() <fieldset> <legend>Download Resume</legend> <div class="editor-field">
         @Html.TextBox("file", "", new { type = "file" }) </div> <div class="editor-field"> 
        <input type="submit" value="Upload" style="width: 120px; height: 25px; font-size: 1.1em; padding:0" />
         </div> </fieldset> }
    </div>

和控制器：

      [HttpPost]
    public ActionResult Upload(HttpPostedFileBase file) 
    { 
        try 
        { 
            if (file.ContentLength > 0) { var fileName = Path.GetFileName(file.FileName);
                var path = Path.Combine(Server.MapPath("~/uploads"), fileName); file.SaveAs(path); 
            } 
            ViewBag.Message = "SuccessUpload";
            return RedirectToAction("SuccessUpload", "Resume");
        } catch 
        { ViewBag.Message = "Fail"; 
            return RedirectToAction("Upload"); } 
    }

如何在上传文件中生成唯一的文件名，谢谢你的答案！

Answer 1

// change file name with its extension
var fileName = Guid.NewGuid().ToString() + 
    System.IO.Path.GetExtension(file.FileName);

var uploadUrl = Server.MapPath("~/uploads");

file.SaveAs(Path.Combine(uploadUrl, fileName));

Answer 2

其中一种方法是结束当前日期。

var fileName = DateTime.Now.ToString("yyyymmddMMss") + System.IO.Path.GetExtension(file.FileName);

如何在webserver（MVC）中的上传文件中生成唯一的文件名

2 个答案: