MVC文件上传03-使用Request.Files上传多个文件

本篇体验在控制器方法中使用controllerContext.HttpContext.Request.Files上传多个文件。兄弟篇为：

MVC文件上传01-使用jquery异步上传并客户端验证类型和大小       
MVC文件上传02-使用HttpPostedFileBase上传多个文件     

 

□ 控制器

   1:  using System;

   2:  using System.Collections.Generic;

   3:  using System.IO;

   4:  using System.Linq;

   5:  using System.Web;

   6:  using System.Web.Mvc;

   7:   

   8:  namespace MvcApplication2.Controllers

   9:  {

  10:      public class HomeController : Controller

  11:      {

  12:          public ActionResult Index()

  13:          {

  14:              return View();

  15:          }

  16:   

  17:          public ActionResult FileUploads()

  18:          {

  19:              string pathForSaving = Server.MapPath("~/Uploads");

  20:              if (this.CreateFolderIfNeeded(pathForSaving))

  21:              {

  22:                  foreach (string file in Request.Files)

  23:                  {

  24:                      HttpPostedFileBase uploadFile = Request.Files[file] as HttpPostedFileBase;

  25:                      if (uploadFile != null && uploadFile.ContentLength > 0)

  26:                      {

  27:                          var path = Path.Combine(pathForSaving, uploadFile.FileName);

  28:                          uploadFile.SaveAs(path);

  29:                      }

  30:                  }

  31:              }

  32:              return RedirectToAction("Index");

  33:          }

  34:   

  35:          // 检查是否要创建上传文件夹

  36:          private bool CreateFolderIfNeeded(string path)

  37:          {

  38:              bool result = true;

  39:              if (!Directory.Exists(path))

  40:              {

  41:                  try

  42:                  {

  43:                      Directory.CreateDirectory(path);

  44:                  }

  45:                  catch (Exception)

  46:                  {

  47:                      //TODO：处理异常

  48:                      result = false;

  49:                  }

  50:              }

  51:              return result;

  52:          }

  53:      }

  54:  }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

 

□ Home/Index.cshtml视图

   1:  @{

   2:      ViewBag.Title = "Index";

   3:      Layout = "~/Views/Shared/_Layout.cshtml";

   4:  }

   5:   

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

   7:  {

   8:      <input type="file" name="files1" id="file1" /><br/>

   9:      <input type="file" name="files2" id="file2" /><br/>

  10:      <input type="file" name="files3" id="file3" /><br/>

  11:      <input type="submit" value="同时上传多个文件" />

  12:  }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

注意：

name属性值可以不同

 

参考资料

※ ASP.NET MVC - 不使用HttpPostedFileBase 处理文件上传