IT轮子系列（四）——MVC文件上传

1 <h2>IT轮子四——文件上传</h2>
2 <div>
3     <input type="file" />
4 </div>

<div>
    <form action="/FileUpload/UploadFile" method="post" enctype="multipart/form-data">
        <input type="file" name="file" /><br /><br />
        <input type="submit" value="提交" />
    </form>
</div>

 1 [HttpPost]
 2         public ActionResult UploadFile() {
 3             try
 4             {
 5                 var files = Request.Files;
 6                 foreach (string item in files)
 7                 {
 8                     //可上传多个文件
 9                     var file = files[item];
10                     var fileName = file.FileName;
11                     var filePath = Server.MapPath(string.Format("~/{0}", "File"));
12                     //判断路径是否存在
13                     if (!Directory.Exists(filePath))
14                     {
15                         //创建路径
16                         Directory.CreateDirectory(filePath);
17                     }
18                     //保存文件
19                     file.SaveAs(Path.Combine(filePath, fileName));
20                 }
21             }
22             catch (Exception ex)
23             {                
24                 throw;
25             }
26             return View("Index");
27         }