<input>标签利用jQuery 批量/单个上传文件

View：

 1 <div>
 2     <input id="btn1" type="button" value="Redirect" onclick="fun1()" />
 3     <hr />
 4     <input id="btn2" type="file">
 5     <input id="upload" type="button" value="单个上传" onclick="Upload()" />
 6     <hr />
 7     <input id="btn3" name="btn3" type="file" multiple="multiple">
 8     <input id="uploads" type="button" value="多个上传" onclick="Uploads()" />
 9 </div>
10 
11 @section scripts{
12     <script type="text/javascript">
13         $(function () {
14         });
15         //批量文件上传
16         function Uploads() {
17             var files = $("#btn3")[0].files;
18             var formData = new FormData();
19             for (var i = 0; i < files.length; i++) {
20               //  var name = files[i].name;
21                 var file = files[i];
22 
23                 formData.append("file" + i, file);
24                // formData.append("name" + i, name);
25             }
26 
27 
28             $.ajax({
29                 url: "/Home/UploadFiles",
30                 type: "POST",
31                 processData: false,
32                 contentType: false,
33                 data: formData,
34                 success: function (data) {
35                     alert(data);
36                 }
37             })
38         };
39         function fun1() {
40             window.open("/Home/M1", "_black");
41         };
42         //单个文件上传
43         function Upload() {
44             var data = $("#btn2")[0].files[0];
45             var fd = new FormData();
46             fd.append("file", data);
47             $.ajax({
48                 url: "/Home/UploadFile1",
49                 type: "POST",
50                 processData: false,
51                 contentType: false,
52                 data: fd,
53                 success: function (data) {
54                     alert(data);
55                 }
56             })
57         };
58     </script>
59 }

Controller：

 1    public ActionResult UploadFiles()
 2         {
 3             HttpFileCollectionBase files = Request.Files;
 4             for(int i=0;i<files.AllKeys.Length;i++)
 5             {
 6                 var fileName = files[i].FileName;
 7                 using (Stream ms = files[i].InputStream)
 8                 {
 9                     if (!System.IO.Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + "UploadFiles"))
10                     {
11                         // DirectorySecurity securityRules = new DirectorySecurity(AppDomain.CurrentDomain.BaseDirectory,AccessControlSections.All);
12                         System.IO.Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + "UploadFiles");
13                     }
14                     byte[] buffer = new byte[ms.Length];
15                     ms.Read(buffer, 0, (int)ms.Length);
16                     System.IO.File.WriteAllBytes(AppDomain.CurrentDomain.BaseDirectory + "UploadFiles\\" + fileName, buffer);
17                 }
18             }
19 
20             return Content("上传成功");
21         }
22 
23         public ActionResult UploadFile1()
24         {
25             var fileName = Request.Files["file"].FileName;
26             using (Stream ms = Request.Files["file"].InputStream)
27             {
28                 if (!System.IO.Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + "UploadFiles"))
29                 {
30                    // DirectorySecurity securityRules = new DirectorySecurity(AppDomain.CurrentDomain.BaseDirectory,AccessControlSections.All);
31                     System.IO.Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory+"UploadFiles");
32                 }
33                 byte[] buffer = new byte[ms.Length];
34                 ms.Read(buffer, 0, (int)ms.Length);
35                 System.IO.File.WriteAllBytes(AppDomain.CurrentDomain.BaseDirectory + "UploadFiles\\" + fileName, buffer);
36             }
37 
38 
39             return Content("上传成功");
40         }