MVC檔案上傳 - 使用Request.Files上傳多個檔案

liuxixi發表於2016-07-12
MVC

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:          // 檢查是否要建立上傳資料夾
  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：處理異常
  48:                      result = false;
  49:                  }
  50:              }
  51:              return result;
  52:          }
  53:      }
  54:  } 

□ Home/Index.cshtml檢視

   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="同時上傳多個檔案" />
  12:  }
注意： 
name屬性值可以不同

轉載自：http://www.csharpwin.com/dotnetspace/13612r1616.shtml

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