ASP.NET MVC 壹：浏览器选择文件并上传到服务器

目的：在网页上选择需要的文件，并上传到IIS Express服务器。
文件结构：

Upload/Index.cshtml代码

 1 @using (Html.BeginForm("Upload", "Upload", FormMethod.Post, new { enctype = "multipart/form-data" }))
 2 {
 3     <div style="margin-top: 20px;">
 4         <fieldset id="myfieldset1">
 5             <legend>信息导入</legend>
 6             <p>选择Excel文件：<input id="FileUpload" type="file" name="files" style=" 250px; height: 24px;background: White" class="easyui-validatebox" /></p>
 7             <p><input id="btnImport" type="submit" value="导入" style=" 60px; height: 28px;" /></p>
 8             <p style="color: Red; text-align: center;">@ViewBag.error</p>
 9         </fieldset>
10     </div>
11 }

./Upload/Index.cshtml

Upload/Upload代码

 1 public ActionResult Upload(HttpPostedFileBase httpPostedFileBase)
 2         {
 3             HttpPostedFileBase httpPostedFile = Request.Files["files"];
 4             string FileName, SavePath;
 5             if(httpPostedFile == null || httpPostedFile.ContentLength <= 0)
 6             {
 7                 ViewBag.error = "文件不能为空";
 8                 return View();
 9             }
10             else
11             {
12                 string ExcelName = Path.GetFileName(httpPostedFile.FileName);
13                 string Extention = System.IO.Path.GetExtension(ExcelName);
14                 string NoExtention = Path.GetFileNameWithoutExtension(ExcelName);
15                 string FileType = ".xlsx";
16                 FileName = NoExtention + Extention;
17                 if (!FileType.Contains(Extention))
18                 {
19                     ViewBag.error = "只能导入xlsx格式的文件";
20                     return View();
21                 }
22                 string path = AppDomain.CurrentDomain.BaseDirectory + "Uploads/";
23                 SavePath = Path.Combine(path, FileName);
24                 httpPostedFile.SaveAs(SavePath);
25             }
26             string Result = string.Empty;
27             string strConn = "Provider=Microsoft.Ace.OleDb.12.0;Data Source=" + SavePath + ";" + "Extended Properties='Excel 12.0; HDR=Yes; IMEX=1'";
28             OleDbConnection oleDbConnection = new OleDbConnection(strConn);
29             oleDbConnection.Open();
30             OleDbDataAdapter oleDbDataAdapter = new OleDbDataAdapter("select * from [生产计划$]", strConn);
31             DataSet dataSet = new DataSet();
32             try
33             {
34                 oleDbDataAdapter.Fill(dataSet, "Results");
35                 oleDbConnection.Close();
36                 DataTable dataTable = dataSet.Tables["Results"];
37             }
38             catch(InvalidCastException e)
39             {
40 
41             }           
42             SprayTable = dataSet.Tables["Results"].DefaultView.ToTable();
43             //将部件数据放到数据库里
44             //Spray spray = new Spray();
45             //for(int i = 0; i < SprayTable.Rows.Count; i++)
46             //{
47             //    spray.MaterialGroupNum = SprayTable.Rows[i][20].ToString();
48             //    spray.MaterialName = SprayTable.Rows[i][7].ToString().Replace("（", "(").Replace("）", ")");//不管用
49             //    spray.PlanNum = Convert.ToInt32(SprayTable.Rows[i][12].ToString());
50             //    layuiContext.Sprays.Add(spray);
51             //    layuiContext.SaveChanges();
52             //}
53             return View(SprayTable);    //将excel表里的数据存储到了SprayTable里。
54         }

./Controllers/UploadController.cs