Excel 数据导入（OleDb）

 @using (Html.BeginForm("Student", "Excel", FormMethod.Post, new { enctype = "multipart/form-data" }))
 {

     <div style="margin-top: 20px;">
         <fieldset id="myfieldset1">
             <legend>学生信息导入</legend>
             <p>
                 选择文件：<input id="FileUpload1" type="file" name="files" style="width: 250px; height: 24px;
                     background: White" class="easyui-validatebox" /></p>
             <p>
                 <input id="btnImport1" type="submit" value="导入" style="width: 60px; height: 28px;" /></p>
             <p style="color: Red; text-align: center;">@ViewBag.errorstu</p>
         </fieldset>
     </div>
 }

     public class ExcelController : Controller
     {
         ContractInfoBLL contract;
         TeacherInfoBLL TIBLL;
         ParentBLL PBLL;
         public ExcelController()
         {
             if (contract == null)
             {
                 contract = new ContractInfoBLL();
             }
             if (TIBLL == null)
             {
                 TIBLL = new TeacherInfoBLL();
             }
             if (PBLL == null)
             {
                 PBLL = new ParentBLL();
             }
         }
         public ActionResult Index(bool Code = true, string Message="")
         {
             if (!Code)
             {
                 ViewBag.Message = Message;
             }
             return View();
         }
         string StuExcel = ApiHelper.GetWebConfig("StuExcel", @"E:/需求/20160520 家宝贝/新建文件夹/学生用户.xlsx");
         /// <summary>
         /// Excel学生用户导入
         /// </summary>
         /// <returns></returns>
         [HttpPost]
         public ActionResult Student(HttpPostedFileBase filebase)
         {
             #region
             HttpPostedFileBase file = Request.Files["files"];
             string FileName;
             string savePath;
             if (file == null || file.ContentLength <= )
             {
                 ViewBag.error = "文件不能为空";
                 return View();
             }
             else
             {
                 string filename = Path.GetFileName(file.FileName);
                 int filesize = file.ContentLength;//获取上传文件的大小单位为字节byte
                 string fileEx = System.IO.Path.GetExtension(filename);//获取上传文件的扩展名
                 string NoFileName = System.IO.Path.GetFileNameWithoutExtension(filename);//获取无扩展名的文件名
                 int Maxsize =  * ;//定义上传文件的最大空间大小为4M
                 string FileType = ".xls,.xlsx";//定义上传文件的类型字符串

                 FileName = NoFileName + DateTime.Now.ToString("yyyyMMddhhmmss") + fileEx;
                 if (!FileType.Contains(fileEx))
                 {
                     ViewBag.error = "文件类型不对，只能导入xls和xlsx格式的文件";
                     return View();
                 }
                 if (filesize >= Maxsize)
                 {
                     ViewBag.error = "上传文件超过4M，不能上传";
                     return View();
                 }
                 string path = AppDomain.CurrentDomain.BaseDirectory + "App_Data/";
                 savePath = Path.Combine(path, FileName);
                 file.SaveAs(savePath);
             }
             #endregion
             List<Student_Excel> stuList = new ExcelBLL().GetStudentByExcel(savePath);
             string Meg = "";
             int ItemSchool = ;
             int classID = ;
             int i = ;
             foreach (var item in stuList)
             {

                 bool ishavecode = contract.IsHaveContractCode(item.ContractCode);
                 if (!ishavecode)
                 {
                     i++;
                     Meg = "学籍号重复";
                     LoggerFactory.Instance.Logger_Info("学生用户_序号" + item.Number + "_学籍号：" + item.ContractCode + "_学生姓名：" + item.Name + "_原因：" + Meg);
                 }
                 else
                 {
                     ItemSchool = contract.GetGardenByName(item.ItemSchoolName);
                     classID = contract.GetClassInfoID(ItemSchool, item.ClassName);
                     if (classID != )
                     {
                         DateTime da = DateTime.Now;
                         ContractInfoList model = new ContractInfoList();
                         model.ContractCode = item.ContractCode;
                         model.ContractStatus = (int)ContractStatus.Normal;
                         model.AdmissionsTeacherID = contract.GetTeacherIDbyName(item.TeacherName);
                         model.StudentName = item.Name;
                         model.StudentGender = item.Sex == "男" ?  : ;
                         model.ParentName = item.ParentName;
                         model.ParenRelation = item.ParenRelation;
                         model.ParentTel = item.Phone;
                         model.EntranceTime = item.EntranceTime.HasValue ? item.EntranceTime.Value : DateTime.Now;
                         model.PaymentAmount = item.PaymentAmount != "" ? Convert.ToInt32(item.PaymentAmount) : ;
                         model.ItemSchool = ItemSchool;
                         model.AddTime = da;
                         model.UpdateTime = da;
                         model.Remarks = "";
                         model.ClassInfoID = classID;

                         bool boo = contract.IsCreateContract(model);
                         if (!boo)
                         {
                             i++;
                             Meg = "创建失败";
                             LoggerFactory.Instance.Logger_Info("学生用户_序号" + item.Number + "_学籍号：" + item.ContractCode + "_学生姓名：" + item.Name + "_原因：" + Meg);
                         }
                     }
                     else
                     {
                         i++;
                         Meg = "班级不存在";
                         LoggerFactory.Instance.Logger_Info("学生用户_序号" + item.Number + "_学籍号：" + item.ContractCode + "_学生姓名：" + item.Name + "_原因：" + Meg);
                     }
                 }
             }

             return Json(new { Code = Meg == "" ? true : false, Message = Meg != "" ? "未导入数据：" + i + "条" : "" });
             //ViewBag.errorstu = "导入成功";
             //return RedirectToAction("Index");
         }

      }

     public class ExcelBLL
     {
         public List<Student_Excel> GetStudentByExcel(string path)
         {
             List<Student_Excel> stuList = new List<Student_Excel>();
             DataSet ds = Helper.GetDataSet("select * from [Sheet1$]", path);
             DataTable dt = ds.Tables[];//忽略第一行表名，从第二行开始
             foreach (DataRow row in dt.Rows)
             {
                 if (row["序号"].ToString()!="")
                 {
                     DateTime ad = new DateTime();
                     if (row["入学日期"].ToString() != "")
                     {
                         ad = Convert.ToDateTime(row["入学日期"]);
                     }
                     stuList.Add(new Student_Excel()
                     {
                         Number = row["序号"].ToString(),
                         ContractCode = row["学籍号"].ToString(),
                         Name = row["学生姓名"].ToString(),
                         Sex = row["性别"].ToString(),
                         ClassName = row["所在班级"].ToString(),
                         Phone = row["紧急联系电话"].ToString(),
                         ParenRelation = row["与孩子关系"].ToString(),
                         ParentName = row["家长姓名"].ToString(),
                         EntranceTime = ad,//Convert.ToDateTime(row["入学日期"]),
                         TeacherName = row["招生老师"].ToString(),
                         PaymentAmount = row["收费金额"].ToString(),
                         ItemSchoolName = row["所在园区"].ToString(),
                     });
                 }
             }

             return stuList;
         }
     }

      public class Helper:BaseBLL
     {
 #region Excel 导入
          private static string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties='Excel 12.0; HDR=yes; IMEX=2'";

          public static DataSet GetDataSet(string sql, string path)
          {
              OleDbConnection conn = new OleDbConnection(string.Format(connstring, path));
              OleDbCommand cmd = new OleDbCommand(sql, conn);
              OleDbDataAdapter da = new OleDbDataAdapter(cmd);
              DataSet ds = new DataSet();//创建内存数据集
              try
              {
                  conn.Open();
                  da.Fill(ds);
                  return ds;
              }
              catch (Exception e)
              {
                  //写日志

                  throw e;
              }
              finally
              {
                  conn.Close();
              }
          }
          #endregion
     }