using (FileStream fileReader = File.OpenRead(@"C:\Users\Administrator\Desktop\112.xls"))
        {
            //创建工作簿对象接收文件流（Excel信息）
            IWorkbook workbook = new HSSFWorkbook(fileReader);
            //工作簿共有几个表
            //int count = workbook.NumberOfSheets;
            //创建工作表读取工作簿表信息
            //ISheet sheet= workbook.GetSheet("表名称");
            ISheet sheet = workbook.GetSheetAt(0);
            string sql = @" insert into T_ExcelIn(Name,Remarks) values (@Name,@Remarks)";
            int ii = 0;
            //r = 1,剔除表头一行
            for (int r = 1; r <= sheet.LastRowNum; r++)
            {
                //定义参数数组para
                SqlParameter[] para = new SqlParameter[] {
                    new SqlParameter("Name",SqlDbType.NVarChar,50),
                    new SqlParameter("Remarks",SqlDbType.NVarChar,50)
                };
                //创建一行获取sheet行数据
                IRow row = sheet.GetRow(r);
                List<ICell> listcell = new List<ICell>();
                //int c = 1 即不读取自动编号的Id列
                for (int c = 1; c < row.LastCellNum; c++)
                {
                    //将每行每个单元格的值添加带listcell集合中
                    listcell.Add(row.GetCell(c));
                }
                //循环赋值给para
                for (int i = 0; i < listcell.Count; i++)
                {
                    para[i].Value = http://www.mamicode.com/listcell[i].ToString();
                }
                //执行添加Sql语句
                ii += SqlHelper.ExecuteNonQuery(sql, para);
               
            }
            if (ii > 0)
            {
                Response.Write("<script>alert(‘已将Excel数据插入到数据库表‘)</script>");
            }
            else
            {
                Response.Write("<script>alert(‘Excel数据插入到数据库表失败！‘)</script>");
            }

        }

————————————参数传递不经过List<>集合————————————

using (FileStream fileReader = File.OpenRead(@"C:\Users\Administrator\Desktop\112.xls"))
        {
            //创建工作簿对象接收文件流（Excel信息）
            IWorkbook workbook = new HSSFWorkbook(fileReader);
            //工作簿共有几个表
            //int count = workbook.NumberOfSheets;
            //创建工作表读取工作簿表信息
            //ISheet sheet= workbook.GetSheet("表名称");
            ISheet sheet = workbook.GetSheetAt(0);
            string sql = @" insert into T_ExcelIn(Name,Remarks) values (@Name,@Remarks)";
            int ii = 0;
            //r = 1,剔除表头一行
            for (int r = 1; r <= sheet.LastRowNum; r++)
            {
                //定义参数数组para
                SqlParameter[] para = new SqlParameter[] {
                    new SqlParameter("Name",SqlDbType.NVarChar,50),
                    new SqlParameter("Remarks",SqlDbType.NVarChar,50)
                };
                //创建一行获取sheet行数据
                IRow row = sheet.GetRow(r);
                //List<ICell> listcell = new List<ICell>();
                //int c = 1 即不读取自动编号的Id列
                for (int c = 1; c < row.LastCellNum; c++)
                {
                    //将每行每个单元格的值添加带listcell集合中
                    //listcell.Add(row.GetCell(c));
                    //将每行的每个单元格的数据添加到para中 c-1即从0 开始记录参数
                    para[c-1].Value = http://www.mamicode.com/row.GetCell(c).ToString();
                }
                //循环赋值给para
                //for (int i = 0; i < listcell.Count; i++)
                //{
                //    para[i].Value = http://www.mamicode.com/listcell[i].ToString();
                //}
                //执行添加Sql语句
                ii = SqlHelper.ExecuteNonQuery(sql, para);
            }
            if (ii > 0)
            {
                Response.Write("<script>alert(‘已将Excel数据插入到数据库表‘)</script>");
            }
            else
            {
                Response.Write("<script>alert(‘Excel数据插入到数据库表失败！‘)</script>");
            }

        }

C# .Net :Excel NPOI导入导出操作教程之将Excel文件读取并写到数据库表，示例分享