ASP.NET MVC 壹：浏览器选择文件并上传到服务器

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

    

    

    

    

    

    

    

3. 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="width: 250px; height: 24px;background: White" class="easyui-validatebox" /></p>
    7             <p><input id="btnImport" type="submit" value="导入" style="width: 60px; height: 28px;" /></p>
    8             <p style="color: Red; text-align: center;">@ViewBag.error</p>
    9         </fieldset>
   10     </div>
   11 }

   ./Upload/Index.cshtml
4. 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

    

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