666 lines
26 KiB
C#
666 lines
26 KiB
C#
using System;
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using System.Collections.Generic;
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using NPOI.XSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.HSSF.UserModel;
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using System.IO;
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using System.Data;
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using System.Web;
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namespace Eson.Utils.ExcelHelper
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{
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/// <summary>
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/// 导出Excel帮助类(内存流形式)
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/// </summary>
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public class ExcelStreamExport
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{
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private static ExcelStreamExport _instance;
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/// <summary>
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/// 实例化导出Excel帮助类
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/// </summary>
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/// <returns></returns>
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public static ExcelStreamExport GetInstance()
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{
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if (_instance == null)
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_instance = new ExcelStreamExport();
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return _instance;
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}
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public IWorkbook workBook;
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public ISheet workSheet;
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public MemoryStream ms;
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#region Excel文件基本操作
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/// <summary>
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/// 初始化工作簿(Book)
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/// </summary>
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/// <param name="strSaveName">文件名称，也作为工作簿名称</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel</param>
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public void InitializeWorkbook(string strSaveName, bool is07Excel)
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{
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//内存流导出
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workBook = is07Excel ? (new XSSFWorkbook() as IWorkbook) : (new HSSFWorkbook() as IWorkbook);
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ms = new MemoryStream();
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workSheet = workBook.CreateSheet(strSaveName);
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}
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/// <summary>
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/// 初始化工作簿(Book)
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/// </summary>
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/// <param name="strSaveName">文件名称，也作为工作簿名称</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel(默认是)</param>
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/// <param name="isFirstCreateSheet">是否第一次创建Excel的Sheet页（默认是）</param>
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public void InitializeWorkSheet(string strSaveName, bool is07Excel = true, bool isFirstCreateSheet = true)
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{
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//内存流导出
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workBook = is07Excel ? (new XSSFWorkbook() as IWorkbook) : (new HSSFWorkbook() as IWorkbook);
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if (isFirstCreateSheet)
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{
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ms = new MemoryStream();
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}
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workSheet = workBook.CreateSheet(strSaveName);
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}
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/// <summary>
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/// 按序号打开工作表(Sheet)
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/// </summary>
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/// <param name="intSheetIndex">工作表序号，为空时默认第一个工作表</param>
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public void GetSheetByIndex(int? intSheetIndex)
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{
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if (intSheetIndex == null)
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workSheet = workBook.GetSheetAt(0);
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else
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workSheet = workBook.GetSheetAt(Convert.ToInt32(intSheetIndex));
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}
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/// <summary>
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/// 按名称打开工作表(Sheet)
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/// </summary>
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/// <param name="strSheetName">工作表名称</param>
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public void GetSheetByName(string strSheetName)
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{
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workSheet = workBook.GetSheet(strSheetName);
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}
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/// <summary>
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/// 初始化工作簿，自动打开第intSheetIndex个Sheet（intSheetIndex默认为0）
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/// </summary>
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/// <param name="strExcelFilePath">原Excel文件路径</param>
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/// <param name="intSheetIndex">第几个Sheet，默认为0</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel</param>
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public void GetSheetFromExcel(string strExcelFilePath, int? intSheetIndex, bool is07Excel)
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{
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InitializeWorkbook(strExcelFilePath, is07Excel);
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GetSheetByIndex(intSheetIndex);
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}
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/// <summary>
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/// 将工作簿写入文件
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/// 如果目标文件已经存在，先删除
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/// </summary>
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/// <param name="strSaveFilePath">要保存的文件地址</param>
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public void WriteToFile(string strSaveFilePath)
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{
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FileInfo fi = new FileInfo(strSaveFilePath);
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if (fi.Exists)
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fi.Delete();
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FileStream fs = new FileStream(strSaveFilePath, FileMode.Create);
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workBook.Write(fs);
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fs.Close();
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}
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#endregion
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#region 写数据到excel文件
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/// <summary>
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/// 导出Excel，传入泛型数据
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/// </summary>
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/// <typeparam name="T">T类型</typeparam>
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/// <param name="lst">泛型</param>
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/// <param name="dicProperties">想要转换的属性名称列表[key值对应Model属性,value值对应Excel显示的列名]</param>
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/// <param name="strSaveName">保存名称</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel，默认是</param>
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//public void WriteListDate<T>(List<T> lst, Dictionary<string, string> dicProperties, string strSaveName, bool is07Excel = true)
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// where T : class
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//{
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// #region 初始化工作簿
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// InitializeWorkbook(strSaveName, is07Excel);
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// //转换数据
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// DataTable dtbl = ExtensiveHelper.ConvertListToTable<T>(lst, dicProperties);
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// //初始化行
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// int rowIndex = 0;
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// int intColumn = 0;
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// IRow rowExcel = workSheet.CreateRow(rowIndex);
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// ICell cellExcel;
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// //初始化列
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumn);
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// cellExcel.SetCellValue(property.Value);
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// ++intColumn;
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// }
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// #endregion
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// #region 写入内容
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// foreach (DataRow rowInfo in dtbl.Rows)
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// {
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// ++rowIndex;
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// rowExcel = workSheet.CreateRow(rowIndex);
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// int intColumnContent = 0;
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumnContent);
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// cellExcel.SetCellValue(rowInfo[property.Value].ToString());
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// ++intColumnContent;
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// }
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// }
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// #endregion
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// //内存流导出
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// ExportExcel(ms, strSaveName, is07Excel);
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//}
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/// <summary>
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/// 输出Excel文件
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/// </summary>
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/// <param name="ms">MemoryStream内存流</param>
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/// <param name="strSaveName">文件保存名称</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel</param>
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//private void ExportExcel(MemoryStream ms, string strSaveName, bool is07Excel)
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//{
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// try
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// {
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// ms.Flush();
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// ms.Position = 0;
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// workBook.Write(ms);
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// workBook = null;
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// HttpContext current = HttpContext.Current;
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// current.Response.ContentType = "application/ms-excel";
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// current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + UrlOper.GetToExcelName(strSaveName) + (is07Excel ? ".xlsx" : ".xls"));
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// current.Response.BinaryWrite(ms.ToArray());
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// ms.Close();
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// ms = null;
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// current.Response.Flush();
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// current.Response.End();
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// //current.Response.Close();
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// }
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// catch (Exception ex) { }
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//}
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#region 导出Excel，传入DataTable内存表
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/// <summary>
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/// 导出Excel，传入DataTable内存表
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/// </summary>
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/// <param name="dtbl">DataTabke内存表</param>
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/// <param name="dicProperties">想要转换的属性名称列表[key值对应Model属性,value值对应Excel显示的列名]</param>
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/// <param name="strSaveName">保存名称</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel，默认是</param>
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//public void WriteListDate(DataTable dtbl, Dictionary<string, string> dicProperties, string strSaveName, bool is07Excel = true)
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//{
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// #region 初始化工作簿
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// InitializeWorkbook(strSaveName, is07Excel);
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// //初始化行
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// int rowIndex = 0;
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// int intColumn = 0;
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// IRow rowExcel = workSheet.CreateRow(rowIndex);
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// ICell cellExcel;
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// //初始化列
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumn);
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// cellExcel.SetCellValue(property.Value);
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// ++intColumn;
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// }
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// #endregion
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// #region 写入内容
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// foreach (DataRow rowInfo in dtbl.Rows)
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// {
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// ++rowIndex;
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// rowExcel = workSheet.CreateRow(rowIndex);
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// int intColumnContent = 0;
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumnContent);
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// cellExcel.SetCellValue(GetColumValue(dtbl, rowInfo, property.Key));
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// ++intColumnContent;
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// }
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// }
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// #endregion
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// //内存流导出
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// ExportExcel(ms, strSaveName, is07Excel);
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//}
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#endregion
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#region 传入多张DataTable内存表数据，导出Excel
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/// <summary>
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/// 传入多张DataTable内存表数据，导出Excel
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/// </summary>
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/// <param name="dtblList">DataTabke内存表泛型数据</param>
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/// <param name="strSaveName">保存名称</param>
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/// <param name="sheetNameList">导出excel每页数据的Sheet名称（不传入则按照dtblList的序号展示）</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel，默认是</param>
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//public void WriteListDate(List<DataTable> dtblList, string strSaveName = null, List<string> sheetNameList = null, bool is07Excel = true)
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//{
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// #region Excel每月Sheet名称初始化
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// if (sheetNameList == null || (sheetNameList != null && dtblList.Count < sheetNameList.Count))
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// {
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// sheetNameList = new List<string>();
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// for (var i = 1; i < dtblList.Count + 1; i++)
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// {
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// sheetNameList.Add(string.Format("数据表_{0}", i));
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// }
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// }
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// if (string.IsNullOrEmpty(strSaveName))
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// {
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// strSaveName = DateTime.Now.ToString("yyyyMMddHHmmss");
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// }
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// #endregion
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// #region 遍历数据表源
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// var dtCount = 0;
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// workBook = is07Excel ? (new XSSFWorkbook() as IWorkbook) : (new HSSFWorkbook() as IWorkbook);
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// //创建流对象
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// ms = new MemoryStream();
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// foreach (var tb in dtblList)
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// {
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// if (tb != null && tb.Rows.Count > 0)
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// {
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// #region 获取表头列名称
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// Dictionary<string, string> dicProperties = new Dictionary<string, string>();
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// foreach (DataColumn column in tb.Columns)
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// {
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// dicProperties.Add(column.ColumnName, column.ColumnName);
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// }
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// #endregion
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// var currSheet = workBook.CreateSheet(sheetNameList[dtCount]);
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// //初始化行
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// int rowIndex = 0;
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// int intColumn = 0;
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// IRow rowExcel = currSheet.CreateRow(rowIndex);
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// ICell cellExcel;
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// //初始化列
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumn);
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// cellExcel.SetCellValue(property.Value);
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// ++intColumn;
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// }
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// #region 写入内容
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// foreach (DataRow rowInfo in tb.Rows)
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// {
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// ++rowIndex;
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// rowExcel = currSheet.CreateRow(rowIndex);
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// int intColumnContent = 0;
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// foreach (KeyValuePair<string, string> property in dicProperties)
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// {
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// cellExcel = rowExcel.CreateCell(intColumnContent);
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// cellExcel.SetCellValue(GetColumValue(tb, rowInfo, property.Key));
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// ++intColumnContent;
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// }
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// }
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// #endregion
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// }
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// dtCount++;
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// }
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// #endregion
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// //内存流导出
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// ExportExcel(ms, strSaveName, is07Excel);
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//}
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#endregion
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/// <summary>
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/// 通过提供的列名和具体行，返回DataTable中具体的某一列的值
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/// </summary>
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/// <param name="dtbl">内存表</param>
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/// <param name="rowInfo">具体行</param>
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/// <param name="columName">列名</param>
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/// <returns>具体某列的值</returns>
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public string GetColumValue(DataTable dtbl, DataRow rowInfo, string columName)
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{
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string clumValue = "";
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foreach (DataColumn clum in dtbl.Columns)
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{
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if (clum.ColumnName.Equals(columName))
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{
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clumValue = rowInfo[clum].ToString();
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break;
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}
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}
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return clumValue;
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}
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/// <summary>
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/// 将DataTable导出成Excel文件
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/// </summary>
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/// <param name="lstDtbl">DataTabke内存表泛型</param>
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/// <param name="dicProperties">字典泛型，想要转换的属性名称列表[key值对应Model属性,value值对应Excel显示的列名]</param>
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/// <param name="strSaveName">保存名称</param>
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/// <param name="intLineCount">换行数，表之间的间距,不换行可以默认输入null,也可以输入0</param>
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/// <param name="is07Excel">是否导出2007以上版本的Excel，默认是</param>
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//public void WriteListDate(List<DataTable> lstDtbl, List<Dictionary<string, string>> lstDicProperties, string strSaveName, int? intLineCount, bool is07Excel = true)
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//{
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// #region 初始化工作簿
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// InitializeWorkbook(strSaveName, is07Excel);
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// //初始化行
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// int rowIndex = 0;
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// IRow rowExcel;
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// ICell cellExcel;
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// #endregion
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// #region 写内容
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// for (int i = 0; i < lstDicProperties.Count; i++)
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// {
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// //写表头
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// rowExcel = workSheet.CreateRow(rowIndex);
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// int intColumn = 0;
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// foreach (KeyValuePair<string, string> property in lstDicProperties[i])
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// {
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// cellExcel = rowExcel.CreateCell(intColumn);
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// cellExcel.SetCellValue(property.Value);
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// ++intColumn;
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// }
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// //写入内容
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// foreach (DataRow rowInfo in lstDtbl[i].Rows)
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// {
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// ++rowIndex;
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// rowExcel = workSheet.CreateRow(rowIndex);
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// int intColumnContent = 0;
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// foreach (KeyValuePair<string, string> property in lstDicProperties[i])
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// {
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// cellExcel = rowExcel.CreateCell(intColumnContent);
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// cellExcel.SetCellValue(GetColumValue(lstDtbl[i], rowInfo, property.Key));
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// ++intColumnContent;
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// }
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// }
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// ++rowIndex;
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// //换行
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// rowIndex += intLineCount == null ? 0 : Convert.ToInt32(intLineCount);
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// }
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// #endregion
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// //内存流导出
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// ExportExcel(ms, strSaveName, is07Excel);
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//}
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#endregion
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#region 读取Excel2007数据
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/// <summary>
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/// 将Excel2007以上版本文件中的数据读出到DataTable中(xlsx)
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/// </summary>
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/// <param name="filePath">Excel2007版本以上文件地址</param>
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/// <param name="sheetIndex">需读取Sheet的Index，Sheet1的index是0，默认0</param>
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/// <returns></returns>
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public DataTable ConvertExcelToTable(string filePath, int sheetIndex = 0)
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{
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DataTable dt = new DataTable();
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string extension = System.IO.Path.GetExtension(filePath).ToLower();
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
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{
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if (extension.Equals(".xls"))
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{
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workBook = new HSSFWorkbook(fs) as IWorkbook;
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workSheet = workBook.GetSheetAt(sheetIndex);
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#region 表头
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IRow header = workSheet.GetRow(workSheet.FirstRowNum);
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List<int> columns = new List<int>();
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for (int i = 0; i < header.LastCellNum; i++)
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{
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object obj = GetValueTypeForXLS(header.GetCell(i) as HSSFCell);
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if (obj == null || obj.ToString() == string.Empty)
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{
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dt.Columns.Add(new DataColumn("Columns" + i.ToString()));
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}
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else
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dt.Columns.Add(new DataColumn(obj.ToString()));
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columns.Add(i);
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}
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#endregion
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#region 数据
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for (int i = workSheet.FirstRowNum + 1; i <= workSheet.LastRowNum; i++)
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{
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DataRow dr = dt.NewRow();
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int count = columns.Count; ;
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foreach (int j in columns)
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{
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object obj = GetValueTypeForXLS(workSheet.GetRow(i).GetCell(j) as HSSFCell);
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if (obj == null || string.IsNullOrEmpty(obj.ToString()))
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{
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count--;
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dr[j] = "";
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}
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else
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{
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dr[j] = obj;
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}
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}
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if (count != 0)
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{
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dt.Rows.Add(dr);
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}
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}
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#endregion
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}
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else
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{
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try
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{
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workBook = new XSSFWorkbook(fs) as IWorkbook;
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workSheet = workBook.GetSheetAt(sheetIndex);
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#region 表头
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IRow header = workSheet.GetRow(workSheet.FirstRowNum);
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List<int> columns = new List<int>();
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for (int i = 0; i < header.LastCellNum; i++)
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{
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object obj = GetValueTypeForXLSX(header.GetCell(i) as XSSFCell);
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if (obj == null || obj.ToString() == string.Empty)
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{
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dt.Columns.Add(new DataColumn("Columns" + i.ToString()));
|
||
}
|
||
else
|
||
dt.Columns.Add(new DataColumn(obj.ToString()));
|
||
columns.Add(i);
|
||
}
|
||
#endregion
|
||
|
||
#region 数据
|
||
for (int i = workSheet.FirstRowNum + 1; i <= workSheet.LastRowNum; i++)
|
||
{
|
||
DataRow dr = dt.NewRow();
|
||
|
||
int count = columns.Count;
|
||
foreach (int j in columns)
|
||
{
|
||
object obj = GetValueTypeForXLSX(workSheet.GetRow(i).GetCell(j) as XSSFCell);
|
||
if (obj == null || string.IsNullOrEmpty(obj.ToString()))
|
||
{
|
||
count--;
|
||
dr[j] = "";
|
||
}
|
||
else
|
||
{
|
||
dr[j] = obj;
|
||
}
|
||
}
|
||
|
||
if (count != 0)
|
||
{
|
||
dt.Rows.Add(dr);
|
||
}
|
||
}
|
||
#endregion
|
||
}
|
||
catch (Exception)
|
||
{
|
||
workBook = new HSSFWorkbook(fs) as IWorkbook;
|
||
workSheet = workBook.GetSheetAt(sheetIndex);
|
||
|
||
#region 表头
|
||
IRow header = workSheet.GetRow(workSheet.FirstRowNum);
|
||
List<int> columns = new List<int>();
|
||
for (int i = 0; i < header.LastCellNum; i++)
|
||
{
|
||
object obj = GetValueTypeForXLS(header.GetCell(i) as HSSFCell);
|
||
if (obj == null || obj.ToString() == string.Empty)
|
||
{
|
||
dt.Columns.Add(new DataColumn("Columns" + i.ToString()));
|
||
}
|
||
else
|
||
dt.Columns.Add(new DataColumn(obj.ToString()));
|
||
columns.Add(i);
|
||
}
|
||
#endregion
|
||
|
||
#region 数据
|
||
for (int i = workSheet.FirstRowNum + 1; i <= workSheet.LastRowNum; i++)
|
||
{
|
||
DataRow dr = dt.NewRow();
|
||
|
||
int count = columns.Count; ;
|
||
foreach (int j in columns)
|
||
{
|
||
object obj = GetValueTypeForXLS(workSheet.GetRow(i).GetCell(j) as HSSFCell);
|
||
if (obj == null || string.IsNullOrEmpty(obj.ToString()))
|
||
{
|
||
count--;
|
||
dr[j] = "";
|
||
}
|
||
else
|
||
{
|
||
dr[j] = obj;
|
||
}
|
||
}
|
||
|
||
if (count != 0)
|
||
{
|
||
dt.Rows.Add(dr);
|
||
}
|
||
}
|
||
#endregion
|
||
}
|
||
}
|
||
}
|
||
return dt;
|
||
}
|
||
#endregion
|
||
|
||
#region 获取单元格类型
|
||
/// <summary>
|
||
/// 获取单元格类型(xlsx)
|
||
/// </summary>
|
||
/// <param name="cell">单元格</param>
|
||
/// <returns></returns>
|
||
private static object GetValueTypeForXLSX(XSSFCell cell)
|
||
{
|
||
if (cell == null)
|
||
return null;
|
||
|
||
switch (cell.CellType)
|
||
{
|
||
case CellType.Blank: //BLANK:
|
||
return null;
|
||
case CellType.Boolean: //BOOLEAN:
|
||
return cell.BooleanCellValue;
|
||
case CellType.Numeric: //NUMERIC:
|
||
//short format = cell.CellStyle.DataFormat;
|
||
//if (format == 14 || format == 31 || format == 57 || format == 58 || format == 178)
|
||
//{
|
||
// return cell.DateCellValue;
|
||
//}
|
||
//else
|
||
//{
|
||
// return cell.NumericCellValue;
|
||
//}
|
||
//NPOI中数字和日期都是NUMERIC类型的，这里对其进行判断是否是日期类型
|
||
if (HSSFDateUtil.IsCellDateFormatted(cell))//日期类型
|
||
{
|
||
return cell.DateCellValue;
|
||
}
|
||
else//其他数字类型
|
||
{
|
||
return cell.NumericCellValue;
|
||
}
|
||
case CellType.String: //STRING:
|
||
return cell.StringCellValue;
|
||
case CellType.Error: //ERROR:
|
||
return cell.ErrorCellValue;
|
||
case CellType.Formula: //FORMULA:
|
||
default:
|
||
return "=" + cell.CellFormula;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取单元格类型(xls)
|
||
/// </summary>
|
||
/// <param name="cell">单元格</param>
|
||
/// <returns></returns>
|
||
private static object GetValueTypeForXLS(HSSFCell cell)
|
||
{
|
||
if (cell == null)
|
||
return null;
|
||
|
||
switch (cell.CellType)
|
||
{
|
||
case CellType.Blank: //BLANK:
|
||
return null;
|
||
case CellType.Boolean: //BOOLEAN:
|
||
return cell.BooleanCellValue;
|
||
case CellType.Numeric: //NUMERIC:
|
||
//short format = cell.CellStyle.DataFormat;
|
||
//if (format == 14 || format == 31 || format == 57 || format == 58 || format == 178)
|
||
//{
|
||
// return cell.DateCellValue;
|
||
//}
|
||
//else
|
||
//{
|
||
// return cell.NumericCellValue;
|
||
//}
|
||
//NPOI中数字和日期都是NUMERIC类型的，这里对其进行判断是否是日期类型
|
||
if (HSSFDateUtil.IsCellDateFormatted(cell))//日期类型
|
||
{
|
||
return cell.DateCellValue;
|
||
}
|
||
else//其他数字类型
|
||
{
|
||
return cell.NumericCellValue;
|
||
}
|
||
case CellType.String: //STRING:
|
||
return cell.StringCellValue;
|
||
case CellType.Error: //ERROR:
|
||
return cell.ErrorCellValue;
|
||
case CellType.Formula: //FORMULA:
|
||
default:
|
||
return "=" + cell.CellFormula;
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
}
|
||
}
|