导入导出Excel
最近需要频繁的使用导入导出，各么，又不想使用ms的PIA，在4.0以下，存在版本兼容的问题。
于是网上查找了很久，找到两款开源的excel组件。
1、CSharpJExcel，这是JExcel的.net版本，但是只支持到2003，也就是xls格式。
2、NPOI，这是一款国人写的开源组件，功能挺好，就是代码看着有点乱~尤其是xlsx段。优点在于demo比较详细
不管如何，先用了再说。
贴一段改过的helper类
/*******************************************************************
* 版权所有：
* 类 名 称：ExcelHelper
* 作 者：zk
* 电子邮箱：77148918@QQ.com
* 创建日期：2012/2/25 10:17:21
* 修改描述：从excel导入datatable时，可以导入日期类型。
* 但对excel中的日期类型有一定要求，要求至少是yyyy/mm/dd类型日期； *
* 修改描述：将datatable导入excel中，对类型为字符串的数字进行处理，
* 导出数字为double类型；
* 修改描述：针对NPOI 2.0 alpha版本更新，修改了导入excel的方法，划分为2003版本和2007版本；
* 将导入方法里的HSSFWorkbook改为接口；
* 将 NPOI.HSSF.UserModel.HSSFRow改为了NPOI.XSSF.UserModel.XSSFRow(只存在导入excel2007的方法中）
* 将 导入方法的参数HSSFSheet sheet改为了接口类型ISheet（2003的导入方法和2007均有修改）
* 将 导入方法区分为导入Excel2003以及导入Excel2007；
* 修改日期：2012年5月4日22:06:29 for Jnz Update to NPOI 1.25 正式版
* 修改日期：2012年8月30日17:13:49 for Jnz Update to NPOI 2.0 alpha版
* 修改日期：2015年9月7日 for Feedback Update to NPOI 2.1.3.1 Stable版
*
* *******************************************************************/
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Text;
using System.Web;
using NPOI;
using NPOI.HPSF;
using NPOI.HSSF;
using NPOI.HSSF.Record;//NPOI.HSSF.Record.Formula.Eval改为了NPOI.SS.Formula.Eval;
using NPOI.SS.Formula.Eval;//同上
using NPOI.HSSF.UserModel;
using NPOI.HSSF.Util;
using NPOI.POIFS;
using NPOI.SS.UserModel;
using NPOI.Util;
using NPOI.SS;
using NPOI.DDF;
using NPOI.SS.Util;
using NPOI.XSSF.UserModel;//
using System.Collections;
using System.Text.RegularExpressions; namespace XX.Carto
{
public class ExcelHelper
{
//private static WriteLog wl = new WriteLog(); #region 从datatable中将数据导出到excel
/// <summary>
/// DataTable导出到Excel的MemoryStream
/// </summary>
/// <param name="dtSource">源DataTable</param>
/// <param name="strHeaderText">表头文本</param>
static MemoryStream ExportDT(DataTable dtSource, string strHeaderText)
{
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.CreateSheet() as HSSFSheet; #region 右击文件 属性信息 //{
// DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
// dsi.Company = "http://www.yongfa365.com/";
// workbook.DocumentSummaryInformation = dsi; // SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
// si.Author = "柳永法"; //填加xls文件作者信息
// si.ApplicationName = "NPOI测试程序"; //填加xls文件创建程序信息
// si.LastAuthor = "柳永法2"; //填加xls文件最后保存者信息
// si.Comments = "说明信息"; //填加xls文件作者信息
// si.Title = "NPOI测试"; //填加xls文件标题信息
// si.Subject = "NPOI测试Demo"; //填加文件主题信息
// si.CreateDateTime = DateTime.Now;
// workbook.SummaryInformation = si;
//} #endregion HSSFCellStyle dateStyle = workbook.CreateCellStyle() as HSSFCellStyle;
HSSFDataFormat format = workbook.CreateDataFormat() as HSSFDataFormat;
dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd"); //取得列宽
int[] arrColWidth = new int[dtSource.Columns.Count];
foreach (DataColumn item in dtSource.Columns)
{
arrColWidth[item.Ordinal] = Encoding.GetEncoding().GetBytes(item.ColumnName.ToString()).Length;
}
for (int i = ; i < dtSource.Rows.Count; i++)
{
for (int j = ; j < dtSource.Columns.Count; j++)
{
int intTemp = Encoding.GetEncoding().GetBytes(dtSource.Rows[i][j].ToString()).Length;
if (intTemp > arrColWidth[j])
{
arrColWidth[j] = intTemp;
}
}
}
int rowIndex = ; foreach (DataRow row in dtSource.Rows)
{
#region 新建表，填充表头，填充列头，样式 if (rowIndex == || rowIndex == )
{
if (rowIndex != )
{
sheet = workbook.CreateSheet() as HSSFSheet;
} #region 表头及样式 {
HSSFRow headerRow = sheet.CreateRow() as HSSFRow;
headerRow.HeightInPoints = ;
headerRow.CreateCell().SetCellValue(strHeaderText); HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle;
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
HSSFFont font = workbook.CreateFont() as HSSFFont;
font.FontHeightInPoints = ;
font.Boldweight = ;
headStyle.SetFont(font); headerRow.GetCell().CellStyle = headStyle; //sheet.AddMergedRegion(new Region(0, 0, 0, dtSource.Columns.Count - 1));方法已过时
sheet.AddMergedRegion(new CellRangeAddress(, , , dtSource.Columns.Count - ));//2015-09-07 by feedback
//headerRow.Dispose();
} #endregion #region 列头及样式 {
HSSFRow headerRow = sheet.CreateRow() as HSSFRow; HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle;
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
HSSFFont font = workbook.CreateFont() as HSSFFont;
font.FontHeightInPoints = ;
font.Boldweight = ;
headStyle.SetFont(font); foreach (DataColumn column in dtSource.Columns)
{
headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
headerRow.GetCell(column.Ordinal).CellStyle = headStyle; //设置列宽
sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + ) * ); }
//headerRow.Dispose();
} #endregion rowIndex = ;
} #endregion #region 填充内容 HSSFRow dataRow = sheet.CreateRow(rowIndex) as HSSFRow;
foreach (DataColumn column in dtSource.Columns)
{
HSSFCell newCell = dataRow.CreateCell(column.Ordinal) as HSSFCell; string drValue = row[column].ToString(); switch (column.DataType.ToString())
{
case "System.String": //字符串类型
double result;
if (isNumeric(drValue, out result))
{ double.TryParse(drValue, out result);
newCell.SetCellValue(result);
break;
}
else
{
newCell.SetCellValue(drValue);
break;
} case "System.DateTime": //日期类型
DateTime dateV;
DateTime.TryParse(drValue, out dateV);
newCell.SetCellValue(dateV); newCell.CellStyle = dateStyle; //格式化显示
break;
case "System.Boolean": //布尔型
bool boolV = false;
bool.TryParse(drValue, out boolV);
newCell.SetCellValue(boolV);
break;
case "System.Int16": //整型
case "System.Int32":
case "System.Int64":
case "System.Byte":
int intV = ;
int.TryParse(drValue, out intV);
newCell.SetCellValue(intV);
break;
case "System.Decimal": //浮点型
case "System.Double":
double doubV = ;
double.TryParse(drValue, out doubV);
newCell.SetCellValue(doubV);
break;
case "System.DBNull": //空值处理
newCell.SetCellValue("");
break;
default:
newCell.SetCellValue("");
break;
} } #endregion rowIndex++;
}
using (MemoryStream ms = new MemoryStream())
{
workbook.Write(ms);
ms.Flush();
ms.Position = ; //sheet;
//workbook.Dispose(); return ms;
}
} /// <summary>
/// DataTable导出到Excel文件
/// </summary>
/// <param name="dtSource">源DataTable</param>
/// <param name="strHeaderText">表头文本</param>
/// <param name="strFileName">保存位置</param>
public static void ExportDTtoExcel(DataTable dtSource, string strHeaderText, string strFileName)
{
using (MemoryStream ms = ExportDT(dtSource, strHeaderText))
{
using (FileStream fs = new FileStream(strFileName, FileMode.Create, FileAccess.Write))
{
byte[] data = ms.ToArray();
fs.Write(data, , data.Length);
fs.Flush();
}
}
}
#endregion #region 从excel2003中将数据导出到datatable
/// <summary>读取excel
/// 默认第一行为标头
/// </summary>
/// <param name="strFileName">excel文档路径</param>
/// <returns></returns>
public static DataTable ImportExcel2003toDt(string strFileName)
{
DataTable dt = new DataTable();
IWorkbook hssfworkbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
hssfworkbook = new HSSFWorkbook(file);
}
HSSFSheet sheet = hssfworkbook.GetSheetAt() as HSSFSheet;
dt = ImportExcel2003InDt(sheet, , true);
return dt;
} /// <summary>读取excel
/// 默认第一行为标头
/// </summary>
/// <param name="strFileName">excel文档路径</param>
/// <returns></returns>
public static DataTable ImportExcel2007toDt(string strFileName)
{
DataTable dt = new DataTable();
IWorkbook hssfworkbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
hssfworkbook = new XSSFWorkbook(file);
}
ISheet sheet = hssfworkbook.GetSheetAt();
dt = ImportExcel2007InDt(sheet, , true);
return dt;
} /// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2003toDt(string strFileName, string SheetName, int HeaderRowIndex)
{
IWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new HSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheet(SheetName) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2003InDt(sheet, HeaderRowIndex, true);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
} /// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2007toDt(string strFileName, string SheetName, int HeaderRowIndex)
{
IWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new XSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheet(SheetName) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2007InDt(sheet, HeaderRowIndex, true);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
} /// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet序号</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2003toDt(string strFileName, int SheetIndex, int HeaderRowIndex)
{
HSSFWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new HSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheetAt(SheetIndex) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2003InDt(sheet, HeaderRowIndex, true);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
}
/// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet序号</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2007toDt(string strFileName, int SheetIndex, int HeaderRowIndex)
{
IWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new XSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheetAt(SheetIndex) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2007InDt(sheet, HeaderRowIndex, true);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
} /// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2003toDt(string strFileName, string SheetName, int HeaderRowIndex, bool needHeader)
{
IWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new HSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheet(SheetName) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2003InDt(sheet, HeaderRowIndex, needHeader);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
} /// <summary>
/// 读取excel
/// </summary>
/// <param name="strFileName">excel文件路径</param>
/// <param name="sheet">需要导出的sheet序号</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
public static DataTable ImportExcel2003toDt(string strFileName, int SheetIndex, int HeaderRowIndex, bool needHeader)
{
HSSFWorkbook workbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
workbook = new HSSFWorkbook(file);
}
HSSFSheet sheet = workbook.GetSheetAt(SheetIndex) as HSSFSheet;
DataTable table = new DataTable();
table = ImportExcel2003InDt(sheet, HeaderRowIndex, needHeader);
//ExcelFileStream.Close();
workbook = null;
sheet = null;
return table;
} static DataTable ImportExcel2003InDt(ISheet sheet, int HeaderRowIndex, bool needHeader)
{
DataTable table = new DataTable();
HSSFRow headerRow;
int cellCount;
try
{
if (HeaderRowIndex < || !needHeader)
{
headerRow = sheet.GetRow() as HSSFRow;
cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
{
DataColumn column = new DataColumn(Convert.ToString(i));
table.Columns.Add(column);
}
}
else
{
headerRow = sheet.GetRow(HeaderRowIndex) as HSSFRow;
cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
{
if (headerRow.GetCell(i) == null)
{
if (table.Columns.IndexOf(Convert.ToString(i)) > )
{
DataColumn column = new DataColumn(Convert.ToString("重复列名" + i));
table.Columns.Add(column);
}
else
{
DataColumn column = new DataColumn(Convert.ToString(i));
table.Columns.Add(column);
} }
else if (table.Columns.IndexOf(headerRow.GetCell(i).ToString()) > )
{
DataColumn column = new DataColumn(Convert.ToString("重复列名" + i));
table.Columns.Add(column);
}
else
{
DataColumn column = new DataColumn(headerRow.GetCell(i).ToString());
table.Columns.Add(column);
}
}
}
int rowCount = sheet.LastRowNum;
for (int i = (HeaderRowIndex + ); i <= sheet.LastRowNum; i++)
{
try
{
HSSFRow row;
if (sheet.GetRow(i) == null)
{
row = sheet.CreateRow(i) as HSSFRow;
}
else
{
row = sheet.GetRow(i) as HSSFRow;
} DataRow dataRow = table.NewRow(); for (int j = row.FirstCellNum; j <= cellCount; j++)
{
try
{
if (row.GetCell(j) != null)
{
switch (row.GetCell(j).CellType)
{
case CellType.String:
string str = row.GetCell(j).StringCellValue;
if (str != null && str.Length > )
{
dataRow[j] = str.ToString();
}
else
{
dataRow[j] = null;
}
break;
case CellType.Numeric:
if (DateUtil.IsCellDateFormatted(row.GetCell(j)))
{
dataRow[j] = DateTime.FromOADate(row.GetCell(j).NumericCellValue);
}
else
{
dataRow[j] = Convert.ToDouble(row.GetCell(j).NumericCellValue);
}
break;
case CellType.Boolean:
dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);
break;
case CellType.Error:
dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);
break;
case CellType.Formula:
switch (row.GetCell(j).CachedFormulaResultType)
{
case CellType.String:
string strFORMULA = row.GetCell(j).StringCellValue;
if (strFORMULA != null && strFORMULA.Length > )
{
dataRow[j] = strFORMULA.ToString();
}
else
{
dataRow[j] = null;
}
break;
case CellType.Numeric:
dataRow[j] = Convert.ToString(row.GetCell(j).NumericCellValue);
break;
case CellType.Boolean:
dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);
break;
case CellType.Error:
dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);
break;
default:
dataRow[j] = "";
break;
}
break;
default:
dataRow[j] = "";
break;
}
}
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
}
table.Rows.Add(dataRow);
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
}
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
return table;
} /// <summary>
/// 将制定sheet中的数据导出到datatable中
/// </summary>
/// <param name="sheet">需要导出的sheet</param>
/// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param>
/// <returns></returns>
static DataTable ImportExcel2007InDt(ISheet sheet, int HeaderRowIndex, bool needHeader)
{
DataTable table = new DataTable();
NPOI.XSSF.UserModel.XSSFRow headerRow;
int cellCount;
try
{
if (HeaderRowIndex < || !needHeader)
{
headerRow = sheet.GetRow() as NPOI.XSSF.UserModel.XSSFRow;
cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
{
DataColumn column = new DataColumn(Convert.ToString(i));
table.Columns.Add(column);
}
}
else
{
headerRow = sheet.GetRow(HeaderRowIndex) as NPOI.XSSF.UserModel.XSSFRow;
cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
{
if (headerRow.GetCell(i) == null)
{
if (table.Columns.IndexOf(Convert.ToString(i)) > )
{
DataColumn column = new DataColumn(Convert.ToString("重复列名" + i));
table.Columns.Add(column);
}
else
{
DataColumn column = new DataColumn(Convert.ToString(i));
table.Columns.Add(column);
} }
else if (table.Columns.IndexOf(headerRow.GetCell(i).ToString()) > )
{
DataColumn column = new DataColumn(Convert.ToString("重复列名" + i));
table.Columns.Add(column);
}
else
{
DataColumn column = new DataColumn(headerRow.GetCell(i).ToString());
table.Columns.Add(column);
}
}
}
int rowCount = sheet.LastRowNum;
for (int i = (HeaderRowIndex + ); i <= sheet.LastRowNum; i++)
{
try
{
NPOI.XSSF.UserModel.XSSFRow row;
if (sheet.GetRow(i) == null)
{
row = sheet.CreateRow(i) as NPOI.XSSF.UserModel.XSSFRow;
}
else
{
row = sheet.GetRow(i) as NPOI.XSSF.UserModel.XSSFRow;
} DataRow dataRow = table.NewRow(); for (int j = row.FirstCellNum; j <= cellCount; j++)
{
try
{
if (row.GetCell(j) != null)
{
switch (row.GetCell(j).CellType)
{
case CellType.String:
string str = row.GetCell(j).StringCellValue;
if (str != null && str.Length > )
{
dataRow[j] = str.ToString();
}
else
{
dataRow[j] = null;
}
break;
case CellType.Numeric:
if (DateUtil.IsCellDateFormatted(row.GetCell(j)))
{
dataRow[j] = DateTime.FromOADate(row.GetCell(j).NumericCellValue);
}
else
{
dataRow[j] = Convert.ToDouble(row.GetCell(j).NumericCellValue);
}
break;
case CellType.Boolean:
dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);
break;
case CellType.Error:
dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);
break;
case CellType.Formula:
switch (row.GetCell(j).CachedFormulaResultType)
{
case CellType.String:
string strFORMULA = row.GetCell(j).StringCellValue;
if (strFORMULA != null && strFORMULA.Length > )
{
dataRow[j] = strFORMULA.ToString();
}
else
{
dataRow[j] = null;
}
break;
case CellType.Numeric:
dataRow[j] = Convert.ToString(row.GetCell(j).NumericCellValue);
break;
case CellType.Boolean:
dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);
break;
case CellType.Error:
dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);
break;
default:
dataRow[j] = "";
break;
}
break;
default:
dataRow[j] = "";
break;
}
}
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
}
table.Rows.Add(dataRow);
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
}
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
return table;
}
#endregion #region 更新excel中的数据 //批量更新，必须所有的excel都是一样的格式
public static void UpdateExcelBatch(string outputFile, List<DataTable> pListTable)
{
//列从0开始
//行从0开始
int coluid = ;
int rowid = ; FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); foreach (DataTable pTable in pListTable)
{
string sheetname = pTable.TableName;//对应excel的sheet
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
int rownum = ;
int column = ;
foreach (DataRow pRow in pTable.Rows)
{
try
{
IRow pR = sheet1.CreateRow(rownum);
for (int k = ; k < pTable.Columns.Count; k++)
{
column = k + coluid;//列从0开始
ICell pCell = pR.CreateCell(column);
pCell.SetCellValue(pRow[k].ToString());
}
rownum++;
// column++;
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
throw;
}
}
}
try
{
readfile.Close();
FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
} } public static void UpdateExcel(string outputFile, string sheetname, DataTable pTable)
{
//列从0开始
//行从0开始
int coluid = ;
int rowid = ; FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
int rownum = ;
int column = ;
foreach (DataRow pRow in pTable.Rows)
{
try
{
IRow pR = sheet1.CreateRow(rownum);
for (int k = ; k < pTable.Columns.Count; k++)
{
column = k + coluid;//列从0开始
ICell pCell = pR.CreateCell(column);
pCell.SetCellValue(pRow[k].ToString());
}
rownum++;
// column++;
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
throw;
}
}
try
{
readfile.Close();
FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
} }
/// <summary>
/// 更新Excel表格
/// </summary>
/// <param name="outputFile">需更新的excel表格路径</param>
/// <param name="sheetname">sheet名</param>
/// <param name="updateData">需更新的数据</param>
/// <param name="coluid">需更新的列号</param>
/// <param name="rowid">需更新的开始行号</param>
public static void UpdateExcel(string outputFile, string sheetname, string[] updateData, int coluid, int rowid)
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
for (int i = ; i < updateData.Length; i++)
{
try
{
if (sheet1.GetRow(i + rowid) == null)
{
sheet1.CreateRow(i + rowid);
}
if (sheet1.GetRow(i + rowid).GetCell(coluid) == null)
{
sheet1.GetRow(i + rowid).CreateCell(coluid);
} sheet1.GetRow(i + rowid).GetCell(coluid).SetCellValue(updateData[i]);
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
throw;
}
}
try
{
readfile.Close();
FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
} } /// <summary>
/// 更新Excel表格
/// </summary>
/// <param name="outputFile">需更新的excel表格路径</param>
/// <param name="sheetname">sheet名</param>
/// <param name="updateData">需更新的数据</param>
/// <param name="coluids">需更新的列号</param>
/// <param name="rowid">需更新的开始行号</param>
public static void UpdateExcel(string outputFile, string sheetname, string[][] updateData, int[] coluids, int rowid)
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
readfile.Close();
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
for (int j = ; j < coluids.Length; j++)
{
for (int i = ; i < updateData[j].Length; i++)
{
try
{
if (sheet1.GetRow(i + rowid) == null)
{
sheet1.CreateRow(i + rowid);
}
if (sheet1.GetRow(i + rowid).GetCell(coluids[j]) == null)
{
sheet1.GetRow(i + rowid).CreateCell(coluids[j]);
}
sheet1.GetRow(i + rowid).GetCell(coluids[j]).SetCellValue(updateData[j][i]);
}
catch (Exception ex)
{
// wl.WriteLogs(ex.ToString());
}
}
}
try
{
FileStream writefile = new FileStream(outputFile, FileMode.Create);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
//wl.WriteLogs(ex.ToString());
}
} /// <summary>
/// 更新Excel表格
/// </summary>
/// <param name="outputFile">需更新的excel表格路径</param>
/// <param name="sheetname">sheet名</param>
/// <param name="updateData">需更新的数据</param>
/// <param name="coluid">需更新的列号</param>
/// <param name="rowid">需更新的开始行号</param>
public static void UpdateExcel(string outputFile, string sheetname, double[] updateData, int coluid, int rowid)
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
for (int i = ; i < updateData.Length; i++)
{
try
{
if (sheet1.GetRow(i + rowid) == null)
{
sheet1.CreateRow(i + rowid);
}
if (sheet1.GetRow(i + rowid).GetCell(coluid) == null)
{
sheet1.GetRow(i + rowid).CreateCell(coluid);
} sheet1.GetRow(i + rowid).GetCell(coluid).SetCellValue(updateData[i]);
}
catch (Exception ex)
{
//wl.WriteLogs(ex.ToString());
throw;
}
}
try
{
readfile.Close();
FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
//wl.WriteLogs(ex.ToString());
} } /// <summary>
/// 更新Excel表格
/// </summary>
/// <param name="outputFile">需更新的excel表格路径</param>
/// <param name="sheetname">sheet名</param>
/// <param name="updateData">需更新的数据</param>
/// <param name="coluids">需更新的列号</param>
/// <param name="rowid">需更新的开始行号</param>
public static void UpdateExcel(string outputFile, string sheetname, double[][] updateData, int[] coluids, int rowid)
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
readfile.Close();
ISheet sheet1 = hssfworkbook.GetSheet(sheetname);
for (int j = ; j < coluids.Length; j++)
{
for (int i = ; i < updateData[j].Length; i++)
{
try
{
if (sheet1.GetRow(i + rowid) == null)
{
sheet1.CreateRow(i + rowid);
}
if (sheet1.GetRow(i + rowid).GetCell(coluids[j]) == null)
{
sheet1.GetRow(i + rowid).CreateCell(coluids[j]);
}
sheet1.GetRow(i + rowid).GetCell(coluids[j]).SetCellValue(updateData[j][i]);
}
catch (Exception ex)
{
//wl.WriteLogs(ex.ToString());
}
}
}
try
{
FileStream writefile = new FileStream(outputFile, FileMode.Create);
hssfworkbook.Write(writefile);
writefile.Close();
}
catch (Exception ex)
{
//wl.WriteLogs(ex.ToString());
}
} #endregion public static int GetSheetNumber(string outputFile)
{
int number = ;
try
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
number = hssfworkbook.NumberOfSheets; }
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
return number;
} public static List<string> GetSheetName(string outputFile)
{
List<string> arrayList = new List<string>();
try
{
FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile);
for (int i = ; i < hssfworkbook.NumberOfSheets; i++)
{
arrayList.Add(hssfworkbook.GetSheetName(i));
}
}
catch (Exception exception)
{
//wl.WriteLogs(exception.ToString());
}
return arrayList;
} public static bool isNumeric(String message, out double result)
{
Regex rex = new Regex(@"^[-]?\d+[.]?\d*$");
result = -;
if (rex.IsMatch(message))
{
result = double.Parse(message);
return true;
}
else
return false; }
}
}
导入导出Excel的更多相关文章
- ASP.NET Core 导入导出Excel xlsx 文件
ASP.NET Core 使用EPPlus.Core导入导出Excel xlsx 文件,EPPlus.Core支持Excel 2007/2010 xlsx文件导入导出,可以运行在Windows, Li ...
- thinkphp导入导出excel表单数据
在PHP项目经常要导入导出Excel表单. 先去下载PHPExcel类库文件,放到相应位置. 我在thinkphp框架中的位置为ThinkPHP/Library/Org/Util/ 导入 在页面上传e ...
- 导入导出Excel工具类ExcelUtil
前言 前段时间做的分布式集成平台项目中,许多模块都用到了导入导出Excel的功能,于是决定封装一个ExcelUtil类,专门用来处理Excel的导入和导出 本项目的持久化层用的是JPA(底层用hibe ...
- php中导入导出excel的原理
在php中我们要经常导入导出excel文件,方便后台管理.那么php导入和导出excel的原理到底是什么呢?excel分为两大版本excel2007(后缀.xlsx).excel2003(后缀.xls ...
- NPOI导入导出EXCEL通用类，供参考，可直接使用在WinForm项目中
以下是NPOI导入导出EXCEL通用类,是在别人的代码上进行优化的,兼容xls与xlsx文件格式,供参考,可直接使用在WinForm项目中,由于XSSFWorkbook类型的Write方法限制,Wri ...
- .NET导入导出Excel
若是开发后台系统,ASP.NET MVC中总是涉及了很多导入导出Excel的问题,有的时候处理起来比较烦 如果能使用以下代码解决,就完美了 public class ReportModel { [Ex ...
- Java利用POI导入导出Excel中的数据
首先谈一下今天发生的一件开心的事,本着一颗android的心我被分配到了PB组,身在曹营心在汉啊!好吧,今天要记录和分享的是Java利用POI导入导出Excel中的数据.下面POI包的下载地 ...
- .Net MVC 导入导出Excel总结(三种导出Excel方法，一种导入Excel方法) 通过MVC控制器导出导入Excel文件(可用于java SSH架构)
.Net MVC 导入导出Excel总结(三种导出Excel方法,一种导入Excel方法) [原文地址] 通过MVC控制器导出导入Excel文件(可用于java SSH架构) public cl ...
- jxl导入/导出excel
1.jxl导入/导出excel案例,黏贴即可运行 package junit.test; import java.io.File; import java.io.IOException; import ...
- 【转】 (C#)利用Aspose.Cells组件导入导出excel文件
Aspose.Cells组件可以不依赖excel来导入导出excel文件: 导入: public static System.Data.DataTable ReadExcel(String strFi ...
随机推荐
- 把十进制数(long型)分别以二进制和十六进制形式输出，不能使用printf系列。
编程实现:把十进制数(long型)分别以二进制和十六进制形式输出,不能使用printf系列. 实现了unsigned long型的转换. // 十进制转换为二进制,十进制数的每1bit转换为二进制的1 ...
- HDFS的基本概念
转:http://www.cnblogs.com/forfuture1978/archive/2010/03/14/1685351.html
- 手动编译Spring4.2源码，以及把源码导入myEclipse中
前提条件,先在本地配置好JDK1.8, 安装好Git 执行下面命令: 1,双击Git Bash, 进入源码存放路径 cd E:\Foler 2,git clone git@github.com:spr ...
- C#格式化小数位的方法
C#格式化字符串还是很方便的,之前一直没用过,也就没有缘分了解 Double dValue = 95.12345; int iValue = 10000; string strValue = &quo ...
- js四舍五入
7-13 向上取整ceil() 7-14 向下取整floor() 7-15 四舍五入round() 7-16 随机数 random()
- hdu 3951(博弈规律)
题意:给定围成一个圈的硬币n枚,然后每次可以取出连续的1-k枚,谁取完最后一枚谁就获胜. 分析:对于第二个人当第一个人取完后,他可以取成对称的形式,所以第二个人必胜. 代码: #include< ...
- app如何节省流量
前言:“客户端上传时间戳”的玩法,你玩过么?一起聊聊时间戳的奇技淫巧! 缘起:无线时代,流量敏感.APP在登录后,往往要向服务器同步非常多的数据,很费流量,技术上有没有节省流量的方法呢?这是本文要讨论 ...
- jquery自动将form表单封装成json的具体实现
前端页面:<span style="font-size:14px;"> <form action="" method="post&q ...
- python在linux上的GUI无法弹出界面
在进行python写GUI程序的时候,使用Tkinter,发现无法执行程序,报错如下: X connection to localhost:10.0 broken(explicit kill or s ...
- Flex通信-与Java实现Socket通信实例
Flex通信-与Java实现Socket通信实例 转自:http://blessht.iteye.com/blog/1136888 博客分类: Flex 环境准备 [服务器端] JDK1.6,“ja ...