private string ExcelToStudent()

      {

          /*---*/

          var preStr = DateTime.Now.ToString("yyyyMMddHHmmssfff") + "_";//文件前缀

          var httpFile = Request.Files["fileUpload"];

          bool flag = !(httpFile.ContentType != "application/vnd.ms-excel");

          if (httpFile.ContentType != "application/octet-stream")

          {

              flag = false;

          }

          if (flag)

          {

              return "{\"error\":\"文件格式不正确！请先下载模板再导入数据！\",\"msg\":\"gzz\"}";

          }

          if (httpFile != null)

          {

              var fileName = httpFile.FileName;

              const string fileUrl = "../../../UploadFile/temp/";

              var uploadPath = Server.MapPath(fileUrl) + preStr + fileName;//上传路径

              if (!Directory.Exists(Server.MapPath(fileUrl)))   //文件夹不存在

              {

                  Directory.CreateDirectory(Server.MapPath(fileUrl));

              }

              httpFile.SaveAs(uploadPath);//文件上传

              fileName = fileName.Split('.')[];

              var table = ExcelHelper.ExcelRead("temp", "Sheet1", preStr + fileName, out uploadPath);

              if (table == null)

              {

                  return "{\"error\":\"模版格式不正确！\",\"msg\":\"gzz\"}";

              }

              if (table.Rows.Count == )

              {

                  return "{\"error\":\"此模版数据为空！\",\"msg\":\"gzz\"}";

              }

              if (table.Columns.Count != )

              {

                  return "{\"error\":\"模版格式不正确！\",\"msg\":\"gzz\"}";

              }

              DataTable dataTable = GetTableSchema();

              long countTime = SqlBulkCopyInsert(table, dataTable);

              YFY.Web.App_Code.JLCommonBind.InsertActionLog(Session["master_name"].ToString(), "老师信息导入", "导入数据！合计" + (table.Rows.Count - count) + "条！");

              if (!string.IsNullOrEmpty(schoolName))

              {

                  return "{\"error\":\"\",\"msg\":\"" + schoolName.TrimEnd(',') + "不存在!成功导入" + (table.Rows.Count - count) + "条数据！\"}";

              }

              if (!string.IsNullOrEmpty(xueyuanName))

              {

                  return "{\"error\":\"\",\"msg\":\"" + xueyuanName.TrimEnd(',') + "不存在!成功导入" + (table.Rows.Count - count) + "条数据！\"}";

              }

              return "{\"error\":\"\",\"msg\":\"成功导入" + (table.Rows.Count - count) + "条数据!\"}";

          }

          return "{\"error\":\"\",\"msg\":\"数据导入失败!\"}";

      }

      /// <summary>

      /// 使用SqlBulkCopy方式插入数据

      /// </summary>

      /// <param name="dt">源数据</param>

      /// <param name="dataTable">目标table</param>

      /// <returns></returns>

      private long SqlBulkCopyInsert(DataTable dt, DataTable dataTable)

      {

          Commens.Commens comm = new YFY.Commens.Commens();

          string schoolId,xueyuanId,classId,zhuanyeId = "";

          foreach (DataRow item in dt.Rows)

          {

              DataRow dataRow = dataTable.NewRow();

              dataRow["StudentName"] = item["学生姓名"].ToString().Trim();

              schoolId = WDCBS_Common.GetSchoolId(item["学校名称"].ToString().Trim(), );

              xueyuanId = WDCBS_Common.GetSchoolId(item["院系"].ToString().Trim(), );

              classId = WDCBS_Common.GetSchoolId(item["班级"].ToString().Trim(), );

              zhuanyeId = WDCBS_Common.GetZhuanYeId(item["专业"].ToString().Trim());

              if (schoolId != "")//根据学校名称判断学校是否存在

              {

                  dataRow["SchoolID"] = schoolId;

              }

              else

              {

                  schoolName += item["学校名称"].ToString().Trim() + ",";

                  count++;

                  continue;

              }

              if (xueyuanId != "")//根据学院名称判断学院是否存在

              {

                  dataRow["XueYuanID"] = xueyuanId;

              }

              else

              {

                  schoolName += item["院系"].ToString().Trim() + ",";

                  count++;

                  continue;

              }

              if (zhuanyeId != "")//根据学院名称判断学院是否存在

              {

                  dataRow["ZhuanYeID"] = zhuanyeId;

              }

              else

              {

                  var bll = new BLLDao.JL_UnlimitCategory();

                  var model = new ModelDao.JL_UnlimitCategory();

                  model.CodeName = item["专业"].ToString().Trim();

                  model.CodePid = ;

                  model.CodeFlag = "";

                  int e_id = bll.Add(model);

                  dataRow["ZhuanYeID"] = e_id;

                  bll.MenuDropList("", "", "JL_UnlimitCategory", "CodeCode", "CodeId", e_id);

              }

              if (classId != "")//根据学院名称判断学院是否存在

              {

                  dataRow["ClassID"] = classId;

              }

              else

              {

                  var bll = new WDCBS_SchoolMessage();

                  var model = new Model.WDCBS_SchoolMessage();

                  model.TopId =schoolId;

                  model.UpId = xueyuanId;

                  model.Type = "";

                  model.ShowIf = "";

                  model.PingCeIf = "";

                  model.AddTime = DateTime.Now;

                  model.Name = item["班级"].ToString().Trim();

                  dataRow["ClassID"] = bll.Add(model);

              }

              dataRow["Sex"] = item["性别"].ToString().Trim();

              dataRow["Paymoney"] = item["支付额度"].ToString().Trim();

              if (item["是否支付"].ToString().Trim()=="是")

              {

                  dataRow["PayMoneyIf"] = "";

              }

              else

              {

                  dataRow["PayMoneyIf"] = "";

              }

              if (WDCBS_Common.GetStudentIsExist(item["身份证号码"].ToString().Trim()))               {

                  dataRow["IDCard"] = item["身份证号码"].ToString().Trim();

              }

              else

              {

                  count++;

                  continue;

              }

              dataRow["Password"] = comm.MD5("");  //密码

              dataRow["BiYeIf"] =;

              dataRow["Role"] = ConfigurationManager.AppSettings["StudengRole"].ToString();

              dataRow["LoginIf"] = "";

              dataTable.Rows.Add(dataRow);

          }

          Stopwatch stopwatch = new Stopwatch();

          stopwatch.Start();

          string connectionString = Maticsoft.DBUtility.PubConstant.ConnectionString;

          SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(connectionString);

          sqlBulkCopy.DestinationTableName = "WDCBS_Student";

          sqlBulkCopy.BatchSize = dataTable.Rows.Count;

          SqlConnection sqlConnection = new SqlConnection(connectionString);

          sqlConnection.Open();

          if (dataTable != null && dataTable.Rows.Count != )

          {

              try

              {

                  sqlBulkCopy.WriteToServer(dataTable);

              }

              catch (Exception ex)

              {

                  YFY.Web.App_Code.JLCommonBind.InsertActionLog("", "学生信息导入", ex.ToString());

              }

          }

          sqlBulkCopy.Close();

          sqlConnection.Close();

          stopwatch.Stop();

          return stopwatch.ElapsedMilliseconds;

          //return dataTable.Rows.Count;

      }

      #region

      private static DataTable GetTableSchema()

      {

          DataTable dataTable = new DataTable();

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentID") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentNo") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentName") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Sex") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("SchoolID") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("XueYuanID") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("ClassID") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("ZhuanYeID") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentProvince") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentCity") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("StudentAdress") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("FamilyPersonName") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("FamilyPersonRelation") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("FamilyPersonTelephone") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("BaoXianIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Mail") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("IDCard") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Telephone") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("QQ") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Password") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Studenttype") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("BanZhuRenTeacher") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("SchoolZhiDaoTeacher") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("EnterpriseZhiDaoTeacher") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("BiYeSheJiTeacher") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("JiuYeZhiDaoTeacher") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("XueJie") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("BiYeIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("BiYeTime") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Statue") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("PingCeTeacherIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("PingCeEnterpriseIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("TeacherPingCeIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("EnterprisePingCeIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("JiaoWuPingCeIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Attachment") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Remark") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Role") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("Paymoney") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("PayMoneyIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("HavePaymoney") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("RegistTag") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("RegistTagIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("LoginIf") });

dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("DeleteIf") });

          return dataTable;

      }

      #endregion

      /// <summary>