C# Excel導入導出

/// <summary>
        /// 企業信息Excel批量導入   需要先引入NPOI
        /// </summary>
        /// <returns></returns>
        public ActionResult ImportEnterpriseInfomation()
        {
            var success = false;
            var message = string.Empty;
            var excelUrl = string.Empty;
            int totalCoun = 0;
            int successCount = 0;
            if (Request.Files == null || Request.Files.Count <= 0)
            {
                return Content("未獲取到文件");
            }
            var file1 = Request.Files[0];

            int ImgSize = file1.ContentLength;

            if (ImgSize > (5 * 1024 * 1024))
            {
                return Content("文件過大");
            }
            string fileName = file1.FileName.Substring(0, file1.FileName.LastIndexOf('.')) + "-" + DateTime.Now.ToString("yyyyMMddhhmmss") + file1.FileName.Substring(file1.FileName.LastIndexOf('.'));
            //生成將要保存的隨機文件名
            // = GetFileName() + ".jpg";
            //要上傳的文件 
            var fs = file1.InputStream;
            BinaryReader r = new BinaryReader(fs);
            //使用UploadFile方法可以用下面的格式 
            byte[] postArray = r.ReadBytes((int)fs.Length);
            string fileSave = Server.MapPath("~/TemplateExcel/QuestionBank");
            //獲取文件的擴展名
            file1.SaveAs(Path.Combine(fileSave, fileName));
            TrainingFacade facade = new TrainingFacade();
            var storePath = System.AppDomain.CurrentDomain.BaseDirectory + "\\TemplateExcel\\QuestionBank\\" + fileName;
            //從EXCEL讀取數據
            var qbdto = EnterpriseInformationExcel(storePath, storePath, out message);
            var excelModels = new List<EnterpriseExcelModel>();
            if (qbdto != null)
            {
                totalCoun = qbdto.Count;
                qbdto.ForEach(item =>
                {
                    var result = facade.InsertEnterpriseInformation(item);
                    if (result.IsSuccess)
                    {
                        successCount++;
                    }
                    else
                    {
                        excelModels.Add(item);
                    }
                });
                success = successCount > 0 ? true : false;
                if (excelModels.Count > 0)
                {
                    excelUrl = ExportEnterpriseInformation(excelModels);
                }
            }
            message += "<font style=\"color:green\">共" + totalCoun + "條，成功導入" + successCount + "條</font>";
            return Json(new { success, msg = message, totalCoun, successCount, excelUrl });
        }

        private List<EnterpriseExcelModel> EnterpriseInformationExcel(string filePath, string storePath, out string message)
        {
            var excelHelper = new ExcelHelper<EnterpriseExcelModel>();
            var titleList = new List<string>();
            titleList.Add("單位名稱*");
            titleList.Add("許可證編號*");
            titleList.Add("許可證有效期");
            titleList.Add("注冊地址*");
            titleList.Add("法定代表人");
            titleList.Add("法人聯系電話");
            titleList.Add("聯系人");
            titleList.Add("聯系電話");

            var contentItem = new Hashtable();
            contentItem.Add("Name", "單位名稱*");
            contentItem.Add("LicenseNum", "許可證編號*");
            contentItem.Add("LicenceValidityPeriod", "許可證有效期");
            contentItem.Add("Address", "注冊地址*");
            contentItem.Add("LegalPerson", "法定代表人");
            contentItem.Add("LegalPhone", "法人聯系電話");
            contentItem.Add("Contacts", "聯系人");
            contentItem.Add("Phone", "聯系電話");

            var renewalItemViewModels = excelHelper.InformationExcel(filePath, storePath, titleList, contentItem, out message, 0);
            return renewalItemViewModels;
        }

        /// <summary>
        /// 企業信息錯誤信息導出
        /// </summary>
        /// <returns></returns>
        private string ExportEnterpriseInformation(List<EnterpriseExcelModel> model)
        {

string filename = "";
string fullurl = "";
try
{

TrendArg arg = new TrendArg();
arg.appIds = AppId;
arg.Area = Area;
arg.timeOpt = StartTime;
arg.VersionTime = EndTime;
var EPFancade = new CockpitFacade();
var result = EPFancade.GetSunProduct_DifficultyStatistics(arg);
//創建Excel文件的對象
NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook();

//添加一個sheet
NPOI.SS.UserModel.ISheet sheet1 = book.CreateSheet("Sheet1");
ICellStyle style = book.CreateCellStyle();
IFont dataFont = book.CreateFont();
dataFont.FontHeightInPoints = 11;//設置字體大小
style.SetFont(dataFont);
style.Alignment = HorizontalAlignment.Center;//居中
style.VerticalAlignment = VerticalAlignment.Center;
style.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
style.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
style.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
style.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
//給sheet1添加第一行的頭部標題
NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
row1.Height = 30 * 20;
row1.CreateCell(0).SetCellValue("序號");
row1.CreateCell(1).SetCellValue("困難和訴求");
row1.CreateCell(2).SetCellValue("數量（個）");

for (int i = 0; i <= 2; i++)
{
try
{
//style.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.PaleBlue.Index;
//sheet1.SetColumnWidth(i, 25 * 256);
ICell cell1 = sheet1.GetRow(0).GetCell(i);
cell1.CellStyle = style;
}
catch { }
}

sheet1.SetColumnWidth(0, 20 * 256);
sheet1.SetColumnWidth(1, 60 * 256);
sheet1.SetColumnWidth(2, 20 * 256);

if (result.Data != null && result.Data.Count > 0)
{

#region 聲明Excel文件對象

//將數據逐步寫入sheet1各個行
for (int i = 0; i < result.Data.Count; i++)
{
NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + 1);
rowtemp.CreateCell(0).SetCellValue(result.Data[i].Num);
rowtemp.CreateCell(1).SetCellValue(result.Data[i].Difficulty ?? "");
rowtemp.CreateCell(2).SetCellValue(result.Data[i].DifficultyNum ?? "");

for (int j = 0; j <= 2; j++)
{
try
{
ICell cell1 = sheet1.GetRow(i + 1).GetCell(j);
cell1.CellStyle = style;
}
catch (Exception ex)
{
}
}
}
#endregion
}

string importPath = AppDomain.CurrentDomain.BaseDirectory + "ExcelExport\\";
filename = StartTime + "__" + EndTime + "_Sheet2_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";
string produceCardPath = string.Format("{0}{1}", importPath, filename);

FileStream fileHSSF = new FileStream(produceCardPath, FileMode.Create);
book.Write(fileHSSF);
byte[] byteArry = new byte[fileHSSF.Length];
fileHSSF.Close();
System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArry);
book.Write(ms);
//寫入文件服務器

var pcmFilePath = Server.MapPath("~/ExcelExport/" + filename);
if (System.IO.File.Exists(pcmFilePath))
{
FileStream serverFs = new FileStream(pcmFilePath, FileMode.OpenOrCreate);
FileInfo fileInfo = new FileInfo(pcmFilePath);
BinaryReader serverBr = new BinaryReader(serverFs);
//使用UploadFile方法可以用下面的格式
byte[] postArray = serverBr.ReadBytes((int)serverFs.Length);
Jinher.JAP.BaseApp.FileServer.Deploy.CustomDTO.FileDTO fileDTO = new Jinher.JAP.BaseApp.FileServer.Deploy.CustomDTO.FileDTO();
fileDTO.UploadFileName = fileInfo.Name;
fileDTO.FileData = postArray;
fileDTO.FileSize = fileInfo.Length;
Jinher.JAP.BaseApp.FileServer.ISV.Facade.FileFacade fileFacade = new Jinher.JAP.BaseApp.FileServer.ISV.Facade.FileFacade();
string serverFilePath = fileFacade.UploadFile(fileDTO);
fullurl = System.Configuration.ConfigurationManager.AppSettings["FileServerUrl"] + serverFilePath;

}

}
catch (Exception ex)
{
SystemLog.LogWrite(
new LogEntity
{
CodeAuthor = "mazg",
ClassName = this.GetType().ToString(),
FunctionName = MethodBase.GetCurrentMethod().Name,
Error = ex
});
return Json(new { code = "0", Success = true, FileName = ex.Message }, JsonRequestBehavior.AllowGet);
}
return Json(new { uploaded = 1, fileName = "", url = fullurl, mes = "上傳成功" }, JsonRequestBehavior.AllowGet);

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Net;
using System.Configuration;
using Jinher.JAP.Common.Loging;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using NPOI.HSSF.UserModel;
namespace Jinher.AMP.TPP.Common
{
    public class ExcelHelper<T>
    {
        //private readonly ILog _logInfo = LogManager.GetLogger("INFO");
        static int _startIndex = 1;
        readonly Hashtable _fromEnglishToChineseForBatchRenewalItem = new Hashtable() { { "QuestionType", "題型必填*" }, { "QuestionTitle", "題干內容必填*" }, { "QuestionExplain", "題目解析" }, { "IsRight", "正確答案必填*" }, { "QuestionAnswerA", "選項A必填*" }, { "QuestionAnswerB", "選項B必填*" }, { "QuestionAnswerC", "選項C" }, { "QuestionAnswerD", "選項D" } };
        readonly List<string> CommonheaderRowNameList = new List<string>() { "題型必填*", "題干內容必填*", "題目解析", "正確答案必填*", "選項A必填*", "選項B必填*", "選項C", "選項D" };

        readonly Hashtable _PersonItem = new Hashtable() { { "ID_Card", "ID_Card" }, { "Pro", "Pro" }, { "City", "City" }, { "Area", "Area" }, { "Town", "Town" }, { "Street", "Street" }, { "CompanyName", "CompanyName" }, { "Phone", "Phone" } };
        readonly List<string> PersonNameList = new List<string>() { "ID_Card", "Pro", "City", "Area", "Town", "Street", "CompanyName", "Phone" };
        private readonly string _fileServerURL = ConfigurationManager.AppSettings["FileServerURL"].ToString();

        /// <summary>  
        /// 導入Excel  
        /// </summary>  
        /// <param name="workbookFile">Excel所在路徑</param>
        /// <param name="storePath">文件存放地址，包含文件名(最好加上時間戳避免文件名重復)</param>
        /// <param name="categories">客戶類集合</param>
        /// <param name="agentInfos">傳入代理人的集合</param>
        /// <param name="excelErrorDataList">輸出的錯誤數據集合</param>
        /// <param name="message">返回的錯誤信息</param>
        /// <returns></returns>  
        public List<T> FromExcel(string workbookFile, string storePath, string ExcelType, out string message)
        {
            IWorkbook iWorkBook = null;
            message = "";
            if (HttpDownload(workbookFile, storePath))
            {
                using (var file = new FileStream(storePath, FileMode.Open, FileAccess.Read))
                {
                    if (workbookFile.IndexOf(".xlsx", StringComparison.Ordinal) > 0) // 2007版本
                        iWorkBook = new XSSFWorkbook(file);
                    else if (workbookFile.IndexOf(".xls", StringComparison.Ordinal) > 0) // 2003版本
                        iWorkBook = new HSSFWorkbook(file);
                }
                var sheet = iWorkBook.GetSheetAt(0);
                var headerRow = sheet.GetRow(_startIndex);
                //EXCEL表頭第一個單元格位置
                var headerRowFirstCellNum = headerRow.FirstCellNum;
                var headerRowNameList = new List<string>();
                if (ExcelType == "1")
                {
                    headerRowNameList.AddRange(CommonheaderRowNameList);
                }
                else
                {
                    headerRowNameList.AddRange(PersonNameList);
                }
                if (ExcelType == "1")
                {
                    if (headerRow.GetCell(headerRowFirstCellNum) == null || headerRow.GetCell(headerRowFirstCellNum).ToString() != "題型必填*")
                    {
                        message = "<font style=\"color:red\">上傳失敗：</font>您上傳的模板不正確";
                        return null;
                    }
                }
                else
                {
                    if (headerRow.GetCell(headerRowFirstCellNum) == null || headerRow.GetCell(headerRowFirstCellNum).ToString() != "ID_Card")
                    {
                        message = "<font style=\"color:red\">上傳失敗：</font>您上傳的模板不正確";
                        return null;
                    }
                }

                var bag = new List<T>();

                var totalCount = sheet.LastRowNum - sheet.FirstRowNum - _startIndex;
                if (totalCount <= 0)
                {
                    message = "<font style=\"color:red\">上傳失敗：</font>無任何數據";
                    return null;
                }
                GetListData(sheet, headerRow, sheet.FirstRowNum + _startIndex + 1, sheet.LastRowNum, bag, ExcelType);
                if (bag.Count <= 0)
                {
                    message = "<font style=\"color:red\">上傳失敗：</font>請在模板中查看上傳規則，並檢查數據正確性";
                }
                return bag.ToList();
            }
            else
            {
                message = "<font style=\"color:red\">讀取出錯</font>無任何數據";
                return null;
            }
        }
        object valueType(Type t, ICell value)
        {
            object o = null;
            string strt = t.ToString();
            if (t.Name == "Nullable`1")
            {
                strt = t.GetGenericArguments()[0].Name;
            }
            var valStr = string.Empty;
            if (value != null)
                valStr = GetNoTNullValue(GetCellValue(value));
            if (string.IsNullOrWhiteSpace(valStr)) return o;
            switch (strt)
            {
                case "System.Decimal":
                    o = decimal.Parse(valStr.Trim('\0'));
                    break;
                case "System.Int32":
                    o = int.Parse(valStr.Trim('\0'));
                    break;
                case "System.Float":
                    o = float.Parse(valStr.Trim('\0'));
                    break;
                case "System.DateTime":
                    if (HSSFDateUtil.IsCellDateFormatted(value))
                    {
                        o = Convert.ToDateTime(valStr);
                    }
                    break;
                case "System.Int64":
                    o = Int64.Parse(valStr.Trim('\0'));
                    break;
                case "Int64":
                    o = value == null ? null : (Int64.Parse(valStr.Trim('\0'))) as long?;
                    break;
                case "DateTime":
                    if (string.IsNullOrWhiteSpace(value.ToString()))
                        o = null;
                    else if (value.CellType == CellType.Numeric && HSSFDateUtil.IsCellDateFormatted(value))
                        o = (DateTime?)value.DateCellValue;
                    else
                        o = Convert.ToDateTime(valStr);
                    break;
                default:
                    o = valStr.Trim('\0');
                    break;
            }
            return o;
        }
        #region 優化方法GetListData
        int type = 0;//這個全局變量在下面用到
        public List<T> GetListData(ISheet sheet, IRow headerRow, int startIndex, int endIndex, List<T> lists, string ExcelType)
        {
            var htLicenseNos = new List<string>();
            for (var i = startIndex; i <= endIndex; i++)
            {
                //1 去掉空行  如果返回false從新循環
                int out_i;
                int out_endIndex;
                if (RemoveEmptyRow(sheet, endIndex, i, out out_i, out out_endIndex))
                {
                    Dictionary<string, string> excelDictionary = null;
                    if (CellValuation(sheet, i, out excelDictionary))//2 給每個單元格判斷空 不為空 賦值.ToString().Trim()  如果返回false從新循環
                    {
                        if (ExcelType == "1")
                        {
                            if (SpecificCheckCell(excelDictionary, i, sheet))//3 執行具體的校驗  這一步下面還要細分8
                            {
                                ConversionCell(excelDictionary, i, sheet, headerRow, lists);
                            }
                        }
                        else
                        {
                            ConversionAttachCell(excelDictionary, i, sheet, headerRow, lists);
                        }

                    }
                }
                i = out_i;
                endIndex = out_endIndex;
            }
            return lists;
        }
        #region

        //轉化
        public bool ConversionCell(Dictionary<string, string> excelDictionary, int i, ISheet sheet, IRow headerRow, List<T> lists)
        {
            //int type = 0;//有車架號和發動機號
            IRow row = sheet.GetRow(i);


            var t = Activator.CreateInstance<T>();
            var properties = t.GetType().GetProperties();
            // int j = 0;
            foreach (var column in properties)
            {

                int j = headerRow.Cells.FindIndex(
                    c =>
                        c.StringCellValue ==
                        (_fromEnglishToChineseForBatchRenewalItem[column.Name] == null
                            ? column.Name
                            : _fromEnglishToChineseForBatchRenewalItem[column.Name].ToString()));
                if (j >= 0 && row.GetCell(j) != null)
                {
                    object value = valueType(column.PropertyType, row.GetCell(j));
                    if (value != null)
                    {
                        switch (column.Name)
                        {
                            case "QuestionType":
                                value = value.ToString().ToUpper();
                                break;
                            case "QuestionTitle":
                                value = value.ToString().ToUpper();
                                break;
                            case "QuestionExplain":
                                value = value.ToString().ToUpper();
                                break;
                            case "IsRight":
                                value = value.ToString().ToUpper();
                                break;
                            case "QuestionAnswerA":
                                value = value.ToString().ToUpper();
                                break;
                            case "QuestionAnswerB":
                                value = value.ToString().ToUpper();
                                break;
                            case "QuestionAnswerC":
                                value = value.ToString().ToUpper();
                                break;

                            case "QuestionAnswerD":
                                value = value.ToString().ToUpper();
                                break;
                        }
                    }

                    column.SetValue(t, value, null);

                }
                //j++;
                //if (j >= properties.Count())
                //{
                //    break;
                //}
            }
            lists.Add(t);
            return true;
        }
        //轉化
        public bool ConversionAttachCell(Dictionary<string, string> excelDictionary, int i, ISheet sheet, IRow headerRow, List<T> lists)
        {
            //int type = 0;//有車架號和發動機號
            IRow row = sheet.GetRow(i);


            var t = Activator.CreateInstance<T>();
            var properties = t.GetType().GetProperties();
            // int j = 0;
            foreach (var column in properties)
            {

                int j = headerRow.Cells.FindIndex(
                    c =>
                        c.StringCellValue ==
                        (_PersonItem[column.Name] == null
                            ? column.Name
                            : _PersonItem[column.Name].ToString()));
                if (j >= 0 && row.GetCell(j) != null)
                {
                    object value = valueType(column.PropertyType, row.GetCell(j));
                    if (value != null)
                    {
                        switch (column.Name)
                        {
                            case "ID_Card":
                                value = value.ToString().ToUpper();
                                break;
                            case "Pro":
                                value = value.ToString().ToUpper();
                                break;
                            case "City":
                                value = value.ToString().ToUpper();
                                break;
                            case "Area":
                                value = value.ToString().ToUpper();
                                break;
                            case "Town":
                                value = value.ToString().ToUpper();
                                break;
                            case "Street":
                                value = value.ToString().ToUpper();
                                break;
                            case "CompanyName":
                                value = value.ToString().ToUpper();
                                break;

                            case "Phone":
                                value = value.ToString().ToUpper();
                                break;
                        }
                    }
                    column.SetValue(t, value, null);

                }
                //j++;
                //if (j >= properties.Count())
                //{
                //    break;
                //}
            }
            lists.Add(t);
            return true;
        }
        //去掉空行
        public bool RemoveEmptyRow(ISheet sheet, int endIndex, int i, out int out_i, out int out_endIndex)
        {
            if (sheet.GetRow(endIndex) == null)
            {
                out_i = --i;
                out_endIndex = --endIndex;
                return false;
            }
            for (int j = 0; j < sheet.GetRow(_startIndex).LastCellNum; j++)
            {
                bool c0_c14 = sheet.GetRow(endIndex).GetCell(j) == null || string.IsNullOrWhiteSpace(sheet.GetRow(endIndex).GetCell(j).ToString());
                if (!c0_c14)
                {
                    out_i = i;
                    out_endIndex = endIndex;
                    return true;
                }
            }
            out_i = --i;
            out_endIndex = --endIndex;
            return false;
        }


        public static string GetNoTNullValue(string values)
        {
            if (string.IsNullOrWhiteSpace(values)) return string.Empty;
            var stringItem = "";
            foreach (var item in values.ToArray())
            {
                if (char.IsNumber(item) || char.IsLetter(item) || char.IsPunctuation(item))
                {
                    stringItem = stringItem + item;
                }
            }
            return stringItem;
        }

        //取單元格賦值
        public bool CellValuation(ISheet sheet, int i, out Dictionary<string, string> excelDictionary)
        {
            IRow row = sheet.GetRow(i) ?? sheet.CreateRow(i);
            IRow headerRow = sheet.GetRow(_startIndex);
            try
            {
                excelDictionary = new Dictionary<string, string>();
                for (int j = headerRow.FirstCellNum; j < headerRow.LastCellNum; j++)
                {
                    var headerName = headerRow.GetCell(j).ToString().Trim();
                    var cell = row.GetCell(j);
                    var cellValue = GetCellValue(cell);
                    if (!string.IsNullOrWhiteSpace(headerName))
                    {
                        var value = GetNoTNullValue(cellValue);
                        excelDictionary.Add(headerName, value);
                    }
                }
                return true;
            }
            catch (Exception ex)
            {
                excelDictionary = null;
                return false;
            }
        }

        /// <summary>
        /// 獲取Excel對應的內容  為了支持有表達式的cell 取到正確的值
        /// </summary>
        /// <param name="cell"></param>
        /// <returns></returns>
        public string GetCellValue(ICell cell)
        {
            try
            {
                var value = string.Empty;
                if (cell == null) return value;
                switch (cell.CellType)
                {
                    case CellType.Numeric:
                        if (DateUtil.IsCellDateFormatted(cell))
                            value = cell.DateCellValue.ToString("yyyy-MM-dd");
                        else
                            value = cell.NumericCellValue.ToString();
                        break;
                    case CellType.String:
                        value = cell.StringCellValue;
                        break;
                    case CellType.Formula:
                        value = cell.StringCellValue;
                        break;
                    case CellType.Boolean:
                        value = cell.BooleanCellValue.ToString();
                        break;
                    default:
                        value = cell.ToString().Trim('\0');
                        break;
                }
                return value;
            }
            catch (Exception)
            {
                return cell.ToString().Trim('\0');
            }
        }


        public bool SpecificCheckCell(Dictionary<string, string> excelDictionary, int i, ISheet sheet)
        {
            var sb = new StringBuilder();
            //這里具體校驗分了八個步驟
            //1檢查是否為空字典
            if (!SpecificCheckCell_ToEmpty(excelDictionary))
            {
                return false;
            }
            //驗證是否包含特殊字符
            var regex = @"[\'|\\‘’“”]+";
            foreach (var item in excelDictionary)
            {
                if (Regex.IsMatch(item.Value, regex))
                    sb.Append(item.Key + "包含有特殊字符");
            }
            //2驗證  車牌 車架 發動機 車主證件號碼

            return Specific(excelDictionary, sb);
        }

        public bool Specific(Dictionary<string, string> excelDictionary, StringBuilder sb)
        {
            List<string> questionBank = new List<string>() { "單選題", "多選題", "判斷題" };
            string questionAnswer = "ABCD";
            if (excelDictionary["題型必填*"] == null || string.IsNullOrEmpty(excelDictionary["題干內容必填*"]) || string.IsNullOrEmpty(excelDictionary["正確答案必填*"]) || string.IsNullOrEmpty(excelDictionary["選項A必填*"]) || string.IsNullOrEmpty(excelDictionary["選項B必填*"]))
            {
                sb.Append("必填項不能為空；");
            }
            if (!questionBank.Exists(x => x.Contains(excelDictionary["題型必填*"].ToString())))
            {
                sb.Append("題型只能選擇單選題，多選題，判斷題；");
            }
            if (excelDictionary["題型必填*"] == "單選題" || excelDictionary["題型必填*"] == "多選題")
            {
                if (!questionAnswer.Contains(excelDictionary["正確答案必填*"].ToString()))
                {
                    sb.Append("正確答案只能為A,B,C,D");
                }
            }
            if (sb.Length >0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        #region   校驗  下面的八個方法
        public bool SpecificCheckCell_ToEmpty(Dictionary<string, string> excelDictionary)
        {
            var str = new StringBuilder();
            foreach (var item in excelDictionary)
            {
                str.Append(item.Value);
            }
            if (string.IsNullOrWhiteSpace(str.ToString()))
                return false;
            else
                return true;
        }

        /// <summary>  
        /// 非法字符轉換  
        /// </summary>  
        /// <param name="str"></param>  
        /// <returns></returns>  
        public static string ReplaceStr(string str)
        {
            str = str.Replace("'", "");
            str = str.Replace("/", "");
            str = str.Replace(@"\", "");
            return str;
        }
        /// <summary>
        /// 將字符串從0截取指定長度
        /// </summary>
        /// <param name="oldString"></param>
        /// <param name="length"></param>
        /// <returns></returns>
        private string CutString(string oldString, int length)
        {
            return string.Join("", (oldString ?? "").ToList().Take(length));
        }
        #endregion

        #endregion
        #endregion
        private bool CheckExcelRowData(ISheet sheet, int rowIndex, int cellIndex, int dataLength)
        {
            bool isPassChecked = true;
            if (sheet.GetRow(rowIndex).GetCell(cellIndex) != null && !string.IsNullOrEmpty(sheet.GetRow(rowIndex).GetCell(cellIndex).ToString()) && sheet.GetRow(rowIndex).GetCell(cellIndex).ToString().Trim().Length > dataLength)
            {
                isPassChecked = false;
            }
            return isPassChecked;
        }
        /// <summary>
        /// http下載文件
        /// </summary>
        /// <param name="url">下載文件地址</param>
        /// <param name="storePath">文件存放地址，包含文件名(最好加上時間戳避免文件名重復)</param>
        /// <returns></returns>
        public bool HttpDownload(string url, string storePath)
        {
            return true;
            //try
            //{

            //    //_logInfo.Info("讀取文件路徑" + url);
            //    string tempPath = System.IO.Path.GetDirectoryName(storePath);
            //    System.IO.Directory.CreateDirectory(tempPath);  //創建臨時文件目錄
            //    string tempFile = tempPath + @"\" + System.IO.Path.GetFileName(storePath) + ".temp"; //臨時文件
            //    if (File.Exists(tempFile))
            //    {
            //        File.Delete(tempFile);    //存在則刪除
            //    }
            //    if (File.Exists(storePath))
            //    {
            //        File.Delete(storePath);    //存在則刪除
            //    }
            //    //_logInfo.Info("創建臨時文件：" + tempFile);
            //    FileStream fs = new FileStream(tempFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);

            //    // 設置參數
            //    HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            //    //發送請求並獲取相應回應數據
            //    HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            //    //直到request.GetResponse()程序才開始向目標網頁發送Post請求
            //    Stream responseStream = response.GetResponseStream();
            //    //創建本地文件寫入流
            //    //Stream stream = new FileStream(tempFile, FileMode.Create);
            //    byte[] bArr = new byte[1024];
            //    int size = responseStream.Read(bArr, 0, (int)bArr.Length);
            //    while (size > 0)
            //    {
            //        //stream.Write(bArr, 0, size);
            //        fs.Write(bArr, 0, size);
            //        size = responseStream.Read(bArr, 0, (int)bArr.Length);
            //    }
            //    //stream.Close();
            //    fs.Close();
            //    responseStream.Close();
            //    //_logInfo.Info("移動臨時文件到指定位置開始：" + storePath);
            //    System.IO.File.Move(tempFile, storePath);
            //    //_logInfo.Info("移動臨時文件到指定位置完成：" + storePath);
            //    return true;
            //}
            //catch (Exception ex)
            //{
            //    //_logInfo.Error("讀取批量續保文件路徑" + url + " 錯誤信息：" + ex.Message);
            //    return false;
            //}
        }

        #region 個人信息導入
        /// <summary>
        /// 
        /// </summary>
        /// <param name="workbookFile">Excel所在路徑</param>
        /// <param name="storePath">文件存放地址，包含文件名(最好加上時間戳避免文件名重復)</param>
        /// <param name="headerRowNameList">標題集合</param>
        /// <param name="contentItem"></param>
        /// <param name="message">返回的錯誤信息</param>
        /// <param name="startIndex">標頭索引</param>
        /// <returns></returns>
        public List<T> InformationExcel(string workbookFile, string storePath, List<string> headerRowNameList,Hashtable contentItem, out string message,int startIndex=1)
        {
            IWorkbook iWorkBook = null;
            message = "";
            _startIndex = startIndex;
            if (HttpDownload(workbookFile, storePath))
            {
                using (var file = new FileStream(storePath, FileMode.Open, FileAccess.Read))
                {
                    if (workbookFile.IndexOf(".xlsx", StringComparison.Ordinal) > 0) // 2007版本
                        iWorkBook = new XSSFWorkbook(file);
                    else if (workbookFile.IndexOf(".xls", StringComparison.Ordinal) > 0) // 2003版本
                        iWorkBook = new HSSFWorkbook(file);
                }
                var sheet = iWorkBook.GetSheetAt(0);
                var headerRow = sheet.GetRow(_startIndex);
                //EXCEL表頭第一個單元格位置
                var headerRowFirstCellNum = headerRow.FirstCellNum;

                if (headerRow.GetCell(headerRowFirstCellNum) == null || headerRow.GetCell(headerRowFirstCellNum).ToString() != headerRowNameList[0])
                {
                    message = "<font style=\"color:red\">上傳失敗：</font>您上傳的模板不正確";
                    return null;
                }

                var bag = new List<T>();

                var totalCount = sheet.LastRowNum - sheet.FirstRowNum - _startIndex;
                if (totalCount <= 0)
                {
                    message = "<font style=\"color:red\">上傳失敗：</font>無任何數據";
                    return null;
                }
                GetListDataInformation(sheet, headerRow, sheet.FirstRowNum + _startIndex + 1, sheet.LastRowNum, bag, contentItem);
                if (bag.Count <= 0)
                {
                    message = "<font style=\"color:red\">上傳失敗：</font>請在模板中查看上傳規則，並檢查數據正確性";
                }
                return bag.ToList();
            }
            else
            {
                message = "<font style=\"color:red\">讀取出錯</font>無任何數據";
                return null;
            }
        }

        public List<T> GetListDataInformation(ISheet sheet, IRow headerRow, int startIndex, int endIndex, List<T> lists,Hashtable contentItem)
        {
            var htLicenseNos = new List<string>();
            for (var i = startIndex; i <= endIndex; i++)
            {
                //1 去掉空行  如果返回false從新循環
                int out_i;
                int out_endIndex;
                if (RemoveEmptyRow(sheet, endIndex, i, out out_i, out out_endIndex))
                {
                    Dictionary<string, string> excelDictionary = null;
                    if (CellValuation(sheet, i, out excelDictionary))//2 給每個單元格判斷空 不為空 賦值.ToString().Trim()  如果返回false從新循環
                    {
                        ConversionCellInformation(excelDictionary, i, sheet, headerRow, lists, contentItem);
                    }
                }
                i = out_i;
                endIndex = out_endIndex;
            }
            return lists;
        }

        public bool ConversionCellInformation(Dictionary<string, string> excelDictionary, int i, ISheet sheet, IRow headerRow, List<T> lists,Hashtable contentItem)
        {
            IRow row = sheet.GetRow(i);


            var t = Activator.CreateInstance<T>();
            var properties = t.GetType().GetProperties();
            // int j = 0;
            foreach (var column in properties)
            {

                int j = headerRow.Cells.FindIndex(
                    c =>
                        c.StringCellValue ==
                        (contentItem[column.Name] == null
                            ? column.Name
                            : contentItem[column.Name].ToString()));
                if (j >= 0 && row.GetCell(j) != null)
                {
                    object value = valueType(column.PropertyType, row.GetCell(j));
                    column.SetValue(t, value, null);

                }
                //j++;
                //if (j >= properties.Count())
                //{
                //    break;
                //}
            }
            lists.Add(t);
            return true;
        }
        #endregion
    }
}

 

ICellStyle style = book.CreateCellStyle();                IFont dataFont = book.CreateFont();                dataFont.FontHeightInPoints = 11;//設置字體大小                style.SetFont(dataFont);                style.Alignment = HorizontalAlignment.Center;//居中                style.VerticalAlignment = VerticalAlignment.Center;                style.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;                style.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;                style.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;                style.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;