Excel接口导出，导入数据库（.Net）

 public ActionResult TestExcel(string filePath)
        {
            return View();
        }
        /// <summary>
        /// 根据Excel列类型获取列的值
        /// </summary>
        /// <param name="cell">Excel列</param>
        /// <returns></returns>
        private static string GetCellValue(ICell cell)
        {
            if (cell == null)
                return string.Empty;
            switch (cell.CellType)
            {
                case CellType.Blank:
                    return string.Empty;
                case CellType.Boolean:
                    return cell.BooleanCellValue.ToString();
                case CellType.Error:
                    return cell.ErrorCellValue.ToString();
                case CellType.Numeric:
                case CellType.Unknown:
                default:
                    return cell.ToString();
                case CellType.String:
                    return cell.StringCellValue;
                case CellType.Formula:
                    try
                    {
                        HSSFFormulaEvaluator e = new HSSFFormulaEvaluator(cell.Sheet.Workbook);
                        e.EvaluateInCell(cell);
                        return cell.ToString();
                    }
                    catch
                    {
                        return cell.NumericCellValue.ToString();
                    }
            }
        }

        /// <summary>
        /// Excel导入
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        public DataTable ImportExcelFile(string filePath)
        {
            HSSFWorkbook hssfworkbook;
            #region//初始化信息
            try
            {
                using (FileStream file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
                {
                    hssfworkbook = new HSSFWorkbook(file);
                }
            }
            catch (Exception e)
            {
                throw e;
            }
            #endregion

            ISheet sheet = hssfworkbook.GetSheetAt();
            DataTable table = new DataTable();
            IRow headerRow = sheet.GetRow();//第一行为标题行
            int cellCount = headerRow.LastCellNum;//LastCellNum = PhysicalNumberOfCells
            int rowCount = sheet.LastRowNum - ;

            for (int i = headerRow.FirstCellNum; i < cellCount; i++)
            {
                DataColumn column = new DataColumn(headerRow.GetCell(i).StringCellValue);
                table.Columns.Add(column);
            }
            for (int i = (sheet.FirstRowNum + ); i <= rowCount; i++)
            {
                IRow row = sheet.GetRow(i);
                DataRow dataRow = table.NewRow();

                if (row != null)
                {
                    for (int j = row.FirstCellNum; j < cellCount; j++)
                    {
                        if (row.GetCell(j) != null)
                            dataRow[j] = GetCellValue(row.GetCell(j));
                    }
                }

                table.Rows.Add(dataRow);
            }
            using (SqlBulkCopy abc = new SqlBulkCopy(SqlConnectionFactory.Connection))
            {
                abc.BatchSize = table.Rows.Count;
                abc.BulkCopyTimeout = ;
                abc.DestinationTableName = "ExcelTable";
                for (int i = ; i < table.Columns.Count; i++)
                {
                    abc.ColumnMappings.Add(table.Columns[i].ColumnName, i);
                }
                abc.WriteToServer(table);
            }
            return table;
        }

        [HttpPost]
        public ActionResult TestExcel(FormCollection form)
        {
                HttpPostedFileBase file = Request.Files[];
                string path = Server.MapPath("\\Models");
                path += "\\" + file.FileName;
                file.SaveAs(path);
                ImportExcelFile(path);
                return View();
        }
        public string EE()
        {
            using (SqlConnection con = SqlConnectionFactory.Connection)
            {
                string sql = "select TsetId,TheDate, Tnumber, Tname, Depter, Bdate, Beonduty, GetoffWork, BeondutyTwo, GetoffWorkTwo, Belate, Leaver, Absenceoftime, Total, BText from ExcelTable";
                var list = con.Query(sql);
                return JsonConvert.SerializeObject(list);
            }
        }
         public ActionResult Detailss()
        {
            ExcelExprot();
            return View();
        }
        protected void ExcelExprot()
        {
            string schoolname = "";
            //创建Excel文件的对象
            NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();
            //添加一个sheet
            NPOI.SS.UserModel.ISheet sheet1 = book.CreateSheet("Sheet1");
            //获取list数据
            List<Models.TesModel> listRainInfo = GetAlll();// m_BLL.GetSchoolListAATQ(schoolname);
                                                              //给sheet1添加第一行的头部标题
            NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow();
            row1.CreateCell().SetCellValue("工号");
            row1.CreateCell().SetCellValue("姓名");
            row1.CreateCell().SetCellValue("所属部门");
            row1.CreateCell().SetCellValue("时间");
            row1.CreateCell().SetCellValue("上班");
            row1.CreateCell().SetCellValue("下班");
            row1.CreateCell().SetCellValue("上班");
            row1.CreateCell().SetCellValue("下班");
            row1.CreateCell().SetCellValue("迟到时间(分钟)");
            row1.CreateCell().SetCellValue("早退时间(分钟)");
            row1.CreateCell().SetCellValue("缺勤时间(分钟)");
            row1.CreateCell().SetCellValue("合计");
            row1.CreateCell().SetCellValue("备注");

            //将数据逐步写入sheet1各个行  年龄>备注
            for (int i = ; i < listRainInfo.Count; i++)
            {
                NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + );
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].TsetId.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].TheDate.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Tnumber.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Tnumber.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Tname.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Depter.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Bdate.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Beonduty.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].GetoffWork.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].BeondutyTwo.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Belate.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Leaver.ToString());
                rowtemp.CreateCell().SetCellValue(listRainInfo[i].Absenceoftime.ToString());

            }
            // 写入到客户端
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            book.Write(ms);
            ms.Seek(, SeekOrigin.Begin);

            ms.Flush();
            ms.Position = ;
            //编辑完后 通过response输出
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "UTF8";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            Response.ContentType = "application/msexcel";
            Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("考勤明细.xls"));
            Response.BinaryWrite(ms.ToArray());
            Response.Flush();
            Response.End();
        }
        private List<Models.TesModel> GetAlll()
        {
            List<Models.TesModel> list = new List<Models.TesModel>();
            string sql = "select TsetId,TheDate, Tnumber, Tname, Depter, Bdate, Beonduty, GetoffWork, BeondutyTwo, GetoffWorkTwo, Belate, Leaver, Absenceoftime from ExcelTable";
            SqlConnection DBper = SqlConnectionFactory.Connection;
            var oo = DBper.Query(sql);
            var json = JsonConvert.SerializeObject(oo);
            list = JsonConvert.DeserializeObject<List<Models.TesModel>>(json);
            return list;
        }

控制器

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <script src="~/Scripts/jquery-3.3.1.js"></script>
</head>
<body>
    <div>
        <form action="/Home/TestExcel" enctype="multipart/form-data" method="post">
            <text>选择：（工作表名“Sheet1”）</text>
            <input name="file" type="file" id="file" />
            <input type="submit" name="Upload" value="导入" />
        </form>
        <input id="Button1" type="button" value="导出" onclick="location.href='/Home/Detailss'" />
        <table>
            <thead>
                <tr>
                    <th>工号</th>
                    <th>姓名</th>
                    <th>所属部分</th>
                    <th>时间</th>
                    <th>上班</th>
                    <th>下班</th>
                    <th>上班</th>
                    <th>下班</th>
                    <th>迟到时间(分钟)</th>
                    <th>早退时间(分钟)</th>
                    <th>缺勤时间(分钟)</th>
                    <th>合计(分钟)</th>
                    <th>备注</th>
                </tr>
            </thead>
            <tbody id="tb"></tbody>
        </table>
    </div>
    <script>
        $(document).ready(function () {
            $.ajax({
                url: '/Home/EE',
                dataType: 'json',
                type: 'get',
                success: function (data) {
                    $(data).each(function () {
                        var tr = '<tr>'
                            + '<td>' + this.TsetId + '</td>'
                            + '<td>' + this.TheDate+'</td>'
                            + '<td>' + this.Tnumber + '</td>'
                            + '<td>' + this.Tname + '</td>'
                            + '<td>' + this.Depter + '</td>'
                            + '<td>' + this.Bdate + '</td>'
                            + '<td>' + this.Beonduty + '</td>'
                            + '<td>' + this.GetoffWork + '</td>'
                            + '<td>' + this.BeondutyTwo + '</td>'
                            + '<td>' + this.GetoffWorkTwo + '</td>'
                            + '<td>' + this.Belate + '</td>'
                            + '<td>' + this.Leaver + '</td>'
                            + '<td>' + this.Absenceoftime + '</td>'
                            + '<td>' + this.Total + '</td>'
                            + '<td>' + this.BText + '</td>'
                            + '</tr>';
                        $("#tb").append(tr);
                    })
                }
            })
        })
    </script>
</body>

</html>

View

 public class SqlConnectionFactory
        {
            private static readonly string ConnString =
               ConfigurationManager.ConnectionStrings["DapperDemo"].ConnectionString;

            private static object _obj = new object();

            public static SqlConnection Connection
            {
                get
                {
                    SqlConnection connection = null;

                    if (connection == null)
                    {
                        lock (_obj)
                        {
                            if (connection == null)
                            {
                                connection = new SqlConnection(ConnString);
                            }
                        }
                    }
                    connection.Open();
                    return connection;
                }
            }
        }

帮助类

/// <summary>
        /// 实体转换辅助类
        /// </summary>
        public class ModelConvertHelper<T> where T : new()
        {
            public static IList<T> ConvertToModel(DataTable dt)
            {
                // 定义集合
                IList<T> ts = new List<T>();

                // 获得此模型的类型
                Type type = typeof(T);
                string tempName = "";

                foreach (DataRow dr in dt.Rows)
                {
                    T t = new T();
                    // 获得此模型的公共属性
                    PropertyInfo[] propertys = t.GetType().GetProperties();
                    foreach (PropertyInfo pi in propertys)
                    {
                        tempName = pi.Name;  // 检查DataTable是否包含此列    

                        if (dt.Columns.Contains(tempName))
                        {
                            // 判断此属性是否有Setter
                            if (!pi.CanWrite) continue;

                            object value = dr[tempName];
                            if (value != DBNull.Value)
                                pi.SetValue(t, value, null);
                        }
                    }
                    ts.Add(t);
                }
                return ts;
            }
        }

实体转换辅助类