C# kendoUpload 点击Submit 再 JS AJAX 上传后台，文件转字节储存数据库

页面：

 1 @using (Html.BeginForm("Update", "Controller", FormMethod.Post,
 2 new { id = "Form", enctype = "multipart/form-data" }))
 3 {
 4 
 5 <div class="modal-body">
 6 
 7 @(Html.Hidden("ID"))
 8 
 9 <div class="form-group m-form__group row text-center">
10 <label class="col-lg-2 col-form-label">File:label>
11 <div class="col-lg-8">
12 <input name="files" id="files" type="file" aria-label="files" />
13 
14 div>
15 div>
16 
17 <div class="form-group m-form__group row text-center">
18 <label class="col-lg-2 col-form-label">Description:label>
19 <div class="col-lg-8">
20 <textarea class="form-control" rows="4" maxlength="250" name="Description" id="Description" style="min-width:200px">textarea>
21 div>
22 div>
23 
24  <input class="btn btn-success" type="submit" id="submit" value="submit" />
25 
26 div>
27 
28 
29 
30 }

JS:

 1 

C#：

 1 public class ViewModel
 2 
 3 {
 4 
 5 public int ID{ get; set; }
 6 
 7 public string Description{ get; set; }
 8 
 9 }
10 
11 [HttpPost]
12 
13 public ActionResult UpdateDocumentTemplate([Bind(Exclude = null)] ViewModel model, IEnumerable files)
14 
15 {
16 
17 foreach (var file in files)
18 
19 {
20 
21 if (file != null){
22 
23 var TempPathFolder ="C:Temporary"
24 
25 //判断路径是否存在
26 
27  if (!Directory.Exists(TempPathFolder))
28 
29 {
30 
31 Directory.CreateDirectory(TempPathFolder);//不存在，创建
32 
33 }
34 
35 var fileName = Path.GetFileName(file.FileName);
36 
37 var TempFilePath = TempPathFolder + @"" + fileName;
38 
39 file.SaveAs(TempFilePath);//文件保存
40 
41 //
42 
43 DirectoryInfo directory = new DirectoryInfo(TempPathFolder);
44 
45  files2 = directory.GetFiles();
46  if (files2.Length > 0)
47 
48                         {
49 
50                             byte[] bytes = System.IO.File.ReadAllBytes(files2[0].FullName);
51 
52                             fileArr = CompressHelper.Compress(bytes);
53 
54                             fileFormat = (files2[0].Name).Split(‘.‘)[1];//文件转字节，可存数据库
55 
56 
57 
58                         }
59 
60 }
61 
62 }
63 
64 }

字节转文件：

 1 [System.Web.Http.HttpGet]
 2 public HttpResponseMessage eMemoTemplateDownload( )
 3 {
 4  HttpResponseMessage result = new HttpResponseMessage();
 5 byte[] file;//字节
 6 var fileName ="";
 7  if (file != null)
 8             {
 9                 result = new HttpResponseMessage(HttpStatusCode.OK);
10                 result.Content = new ByteArrayContent(file);
11                 result.Content.Headers.ContentDisposition =
12                         new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment")
13                         {
14                             FileName = fileName
15                         };
16                 return result;
17             }
18 
19 }

Form

C# kendoUpload 点击Submit 再 JS AJAX 上传后台，文件转字节储存数据库

原文地址：https://www.cnblogs.com/RenPS/p/14218335.html