1、导入NPOI.dll
2、添加类NPOIExcel.cs
using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Data.OleDb; using System.IO; using System.Drawing; using NPOI.HSSF.UserModel; using NPOI.SS.UserModel; using NPOI.XSSF.UserModel; using NPOI.HSSF.Util; using NPOI.SS.Util; public class NPOIExcel { internal IWorkbook Book { get; set; } private int sheetID = 0; /// <summary> /// 当前活动的SheetID，所有的操作将指向这个Sheet /// </summary> public int ActiveSheetID { get { return sheetID; } set { sheetID = value; } } /// <summary> /// 当前活动的SheetName，所有的操作将指向这个Sheet /// </summary> public string ActiveSheetName { get { return Book.GetSheetAt(sheetID).SheetName; } set { sheetID = Book.GetSheetIndex(value); } } /// <summary> /// 当前活动的Sheet，所有的操作将指向这个Sheet /// </summary> public ISheet ActiveSheet { get { return Book.GetSheetAt(sheetID); } } /// <summary> /// 第一行非空行的行号 /// </summary> public int FirstRowNum { get { return Book.GetSheetAt(sheetID).FirstRowNum; } } /// <summary> /// 最后一行非空行的行号 /// </summary> public int LastRostNum { get { return Book.GetSheetAt(sheetID).LastRowNum; } } /// <summary> /// 无模板的Excel生成或操作 /// </summary> public NPOIExcel() { Book = new HSSFWorkbook(); Book.CreateSheet(); } public NPOIExcel(Stream fileStream, string fileName) { if (fileName.Substring(fileName.LastIndexOf(".")) == ".xls") { Book = new HSSFWorkbook(fileStream); } else { Book = new XSSFWorkbook(fileStream); } } /// <summary> /// 带模板或数据的Excel生成或操作 /// </summary> /// <param name="fileName"></param> public NPOIExcel(string fileName) { Book = CreateBook(fileName); } /// <summary> /// 创建Excel Book /// </summary> /// <param name="fileName">模板文件名</param> /// <returns></returns> private IWorkbook CreateBook(string fileName) { FileInfo file = new FileInfo(fileName); if (!file.Exists) { File.Create(fileName).Close(); } FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); IWorkbook book; if (file.Extension == ".xls") { book = new HSSFWorkbook(fs); } else { book = new XSSFWorkbook(fs); } fs.Close(); if (book.NumberOfSheets == 0) { book.CreateSheet(); } return book; } /// <summary> /// 新建Sheet /// </summary> /// <returns>新建Sheet</returns> public ISheet CreateSheet() { return Book.CreateSheet(); } /// <summary> /// 新建Sheet /// </summary> /// <param name="sheetName">新建Sheet的名称</param> /// <returns>新建Sheet</returns> public ISheet CreateSheet(string sheetName) { return Book.CreateSheet(sheetName); } /// <summary> /// 设置行高 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="height">高度</param> public void SetRowHeight(int rowIndex, float height) { IRow row = Book.GetSheetAt(sheetID).GetRow(rowIndex); if (row == null) { row = Book.GetSheetAt(sheetID).CreateRow(rowIndex); } row.Height = (short)(height * 20); } /// <summary> /// 设置列宽 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="columnIndex">列号</param> /// <param name="width">宽度</param> public void SetColumnWidth(int columnIndex, short width) { Book.GetSheetAt(sheetID).SetColumnWidth(columnIndex, width * 256); } /// <summary> /// 获取或设置默认行高 /// 注：只对当前ActiveSheet有效 /// </summary> public short DefaultRowHeight { get { return (short)(Book.GetSheetAt(sheetID).DefaultRowHeight / 20); } set { Book.GetSheetAt(sheetID).DefaultRowHeight = value * 20; } } /// <summary> /// 获取或设置默认列宽 /// 注：只对当前ActiveSheet有效 /// </summary> public int DefaultColWidth { get { return Book.GetSheetAt(sheetID).DefaultColumnWidth; } set { Book.GetSheetAt(sheetID).DefaultColumnWidth = value; } } /// <summary> /// 某一列的列宽自动调整大小 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="colIndex">列号</param> public void AutoColWidth(int colIndex) { Book.GetSheetAt(sheetID).AutoSizeColumn(colIndex, true); } /// <summary> /// 隐藏一行 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> public void HiddenRow(int rowIndex) { IRow row = Book.GetSheetAt(sheetID).GetRow(rowIndex); if (row == null) { row = Book.GetSheetAt(sheetID).CreateRow(rowIndex); } row.ZeroHeight = true; } /// <summary> /// 删除一行 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> public void RemoveRow(int rowIndex) { IRow row = Book.GetSheetAt(sheetID).GetRow(rowIndex); if (row != null) { ActiveSheet.RemoveRow(row); } } /// <summary> /// 读取单元格的值 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="columnIndex">列号</param> /// <returns>单元格的值</returns> public object ReadValue(int rowIndex, int columnIndex, bool? isDateTime = null) { try { ICell cell = Book.GetSheetAt(sheetID).GetRow(rowIndex).GetCell(columnIndex); short df = cell.CellStyle.DataFormat; //return cell.ToString(); switch (cell.CellType) { case CellType.BLANK: return null; case CellType.BOOLEAN: return cell.BooleanCellValue; case CellType.ERROR: throw new Exception("Cell Value Error"); case CellType.FORMULA: { switch (cell.CachedFormulaResultType) { case CellType.BLANK: return ""; case CellType.BOOLEAN: return cell.BooleanCellValue; case CellType.ERROR: throw new Exception("Cell Value Error"); case CellType.FORMULA: throw new Exception("The formula of this cell is too complex！"); case CellType.NUMERIC: if (isDateTime == null) { if (DateUtil.IsCellDateFormatted(cell)) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } else if (isDateTime == true) { return cell.DateCellValue; } else { return cell.NumericCellValue; } case CellType.STRING: return cell.StringCellValue; case CellType.Unknown: return cell.ToString(); default: return cell.ToString(); } } case CellType.NUMERIC: { if (isDateTime == null) { if (DateUtil.IsCellDateFormatted(cell)) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } else if (isDateTime == true) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } case CellType.STRING: return cell.StringCellValue; case CellType.Unknown: return cell.ToString(); default: return cell.ToString(); } } catch (System.NullReferenceException) { return null; } catch (Exception ex) { throw ex; } } /// <summary> /// 设置单元格的值 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="columnIndex">列号</param> /// <param name="value">单元格的值</param> public void SetValue(int rowIndex, int columnIndex, object value) { SetValue(rowIndex, columnIndex, value, false); } /// <summary> /// 设置单元格的值 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="columnIndex">列号</param> /// <param name="value">单元格的值</param> /// <param name="isFormula">是否是公式</param> public void SetValue(int rowIndex, int columnIndex, object value, bool isFormula) { IRow row = Book.GetSheetAt(sheetID).GetRow(rowIndex); if (row == null) { row = Book.GetSheetAt(sheetID).CreateRow(rowIndex); } ICell cell = row.GetCell(columnIndex); if (cell == null) { cell = row.CreateCell(columnIndex); } if (value == null) { cell.SetCellValue(""); } if (isFormula) { cell.SetCellFormula(value.ToString()); } else { if (value is short) { cell.SetCellValue((short)value); } else if (value is int) { cell.SetCellValue((int)value); } else if (value is long) { cell.SetCellValue((long)value); } else if (value is float) { cell.SetCellValue((float)value); } else if (value is double) { cell.SetCellValue((double)value); } else if (value is bool) { cell.SetCellValue((bool)value); } else if (value is DateTime) { cell.SetCellValue((DateTime)value); } else if (value == null) { } else { cell.SetCellValue(value.ToString()); } } } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="type">验证类型</param> /// <param name="operatorType">验证方式</param> /// <param name="minValue">最小值</param> /// <param name="maxValue">最大值</param> public void SetValueRange(int startRowIndex, int EndRowIndex, int startColInex, int endColIndex, NPOIDataType type, OperatorTypes operatorType, string minValue, string maxValue) { SetValueRange(startRowIndex, EndRowIndex, startColInex, endColIndex, type, operatorType, minValue, maxValue, "", ""); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="type">验证类型</param> /// <param name="operatorType">验证方式</param> /// <param name="minValue">最小值</param> /// <param name="maxValue">最大值</param> /// <param name="formate">数据格式</param> public void SetValueRange(int startRowIndex, int EndRowIndex, int startColInex, int endColIndex, NPOIDataType type, OperatorTypes operatorType, string minValue, string maxValue, string formate) { SetValueRange(startRowIndex, EndRowIndex, startColInex, endColIndex, type, operatorType, minValue, maxValue, formate, ""); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="type">验证类型</param> /// <param name="operatorType">验证方式</param> /// <param name="minValue">最小值</param> /// <param name="maxValue">最大值</param> /// <param name="formate">数据格式</param> /// <param name="AlertMassage">报错信息</param> public void SetValueRange(int startRowIndex, int EndRowIndex, int startColInex, int endColIndex, NPOIDataType type, OperatorTypes operatorType, string minValue, string maxValue, string formate, string AlertMassage) { CellRangeAddressList regions = new CellRangeAddressList(startRowIndex, EndRowIndex, startColInex, endColIndex); DVConstraint constraint = DVConstraint.CreateNumericConstraint(ValidationType.ANY, 0, null, null); switch (type) { case NPOIDataType.Integer: constraint = DVConstraint.CreateNumericConstraint(ValidationType.INTEGER, (int)operatorType, minValue, maxValue); break; case NPOIDataType.Float: constraint = DVConstraint.CreateNumericConstraint(ValidationType.DECIMAL, (int)operatorType, minValue, maxValue); break; case NPOIDataType.Date: if (formate == "") { formate = "yyyy/MM/dd"; } constraint = DVConstraint.CreateDateConstraint((int)operatorType, minValue, maxValue, formate); break; case NPOIDataType.Time: constraint = DVConstraint.CreateTimeConstraint((int)operatorType, minValue, maxValue); break; case NPOIDataType.TextLength: constraint = DVConstraint.CreateNumericConstraint(ValidationType.TEXT_LENGTH, (int)operatorType, minValue, maxValue); break; default: break; } HSSFDataValidation dataValidate1 = new HSSFDataValidation(regions, constraint); if (!string.IsNullOrEmpty(AlertMassage)) { dataValidate1.CreateErrorBox("Error", AlertMassage); } ActiveSheet.AddValidationData(dataValidate1); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="dataRange">值系列</param> public void SetValueRange(int startRowIndex, int EndRowIndex, int startColInex, int endColIndex, string[] dataRange) { SetValueRange(startRowIndex, EndRowIndex, startColInex, endColIndex, dataRange, ""); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="dataRange">值系列</param> /// <param name="alertMassage">报错信息</param> public void SetValueRange(int startRowIndex, int endRowIndex, int startColInex, int endColIndex, string[] dataRange, string alertMassage) { ISheetConditionalFormatting hscf = ActiveSheet.SheetConditionalFormatting; CellRangeAddress[] regions = { new CellRangeAddress(startRowIndex, endRowIndex,startColInex,endColIndex) }; CellRangeAddressList rangeList = new CellRangeAddressList(); rangeList.AddCellRangeAddress(new CellRangeAddress(startRowIndex, endRowIndex, startColInex, endColIndex)); DVConstraint dvconstraint = DVConstraint.CreateExplicitListConstraint(dataRange); HSSFDataValidation dataValidation = new HSSFDataValidation(rangeList, dvconstraint); if (!string.IsNullOrEmpty(alertMassage)) { dataValidation.CreateErrorBox("Error", alertMassage); } ActiveSheet.AddValidationData(dataValidation); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="formula">计算公式</param> /// <param name="alertMassage">报错信息</param> public void SetValueRange(int startRowIndex, int endRowIndex, int startColInex, int endColIndex, string formula, string alertMassage) { ISheetConditionalFormatting hscf = ActiveSheet.SheetConditionalFormatting; CellRangeAddress[] regions = { new CellRangeAddress(startRowIndex, endRowIndex,startColInex,endColIndex) }; CellRangeAddressList rangeList = new CellRangeAddressList(); rangeList.AddCellRangeAddress(new CellRangeAddress(startRowIndex, endRowIndex, startColInex, endColIndex)); DVConstraint dvconstraint = DVConstraint.CreateFormulaListConstraint(formula); HSSFDataValidation dataValidation = new HSSFDataValidation(rangeList, dvconstraint); if (!string.IsNullOrEmpty(alertMassage)) { dataValidation.CreateErrorBox("Error", alertMassage); } ActiveSheet.AddValidationData(dataValidation); } /// <summary> /// 设置一个区域内的单元格的值范围 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行</param> /// <param name="EndRowIndex">结束行</param> /// <param name="startColInex">开始列</param> /// <param name="endColIndex">结束列</param> /// <param name="formula">计算公式</param> public void SetValueRange(int startRowIndex, int endRowIndex, int startColInex, int endColIndex, string formula) { SetValueRange(startRowIndex, endColIndex, startRowIndex, endColIndex, formula, ""); } /// <summary> /// 生成单元格样式 /// </summary> /// <returns>与当前Excel相关的单元格样式</returns> public ICellStyle CreateCellStyle() { return Book.CreateCellStyle(); } /// <summary> /// 生成字体 /// </summary> /// <returns>与当前Excel相关的字体</returns> public IFont CreateFont() { return Book.CreateFont(); } /// <summary> /// 设置单元格样式 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="columnIndex">列号</param> /// <param name="style">样式</param> public void SetStyle(int rowIndex, int columnIndex, ICellStyle style) { IRow row = Book.GetSheetAt(sheetID).GetRow(rowIndex); if (row == null) { row = Book.GetSheetAt(sheetID).CreateRow(rowIndex); } ICell cell = row.GetCell(columnIndex); if (cell == null) { cell = row.CreateCell(columnIndex); } cell.CellStyle = style; } /// <summary> /// 合并单元格 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="startRowIndex">开始行号</param> /// <param name="startColumnIndex">开始列号</param> /// <param name="endRowIndex">结束行号</param> /// <param name="endColumnIndex">结束列号</param> public void MergeCells(int startRowIndex, int startColumnIndex, int endRowIndex, int endColumnIndex) { int index = Book.GetSheetAt(sheetID).AddMergedRegion(new CellRangeAddress(startRowIndex, endRowIndex, startColumnIndex, endColumnIndex)); } /// <summary> /// 拆分单元格 /// 注1：只对当前ActiveSheet有效 /// 注2：只有合并的单元格才能拆分 /// </summary> /// <param name="startRowIndex">开始行号</param> /// <param name="startColumnIndex">开始列号</param> public void UnMergeCells(int startRowIndex, int startColumnIndex) { int merges = Book.GetSheetAt(sheetID).NumMergedRegions; CellRangeAddress merge; for (int i = 0; i < merges; i++) { merge = Book.GetSheetAt(sheetID).GetMergedRegion(i); if (merge.FirstRow == startRowIndex && merge.FirstColumn == startColumnIndex) { Book.GetSheetAt(sheetID).RemoveMergedRegion(i); break; } } } /// <summary> /// 保存到文件 /// 注：有模板的，文件扩展名与模板一样；没有模板的，文件扩展名为“.xls”； /// </summary> /// <param name="fileName">保存文件名</param> public void Save(string fileName) { FileStream file = new FileStream(fileName, FileMode.Create); Book.Write(file); file.Close(); } /// <summary> /// 保存到流 /// 注：保存或下载时，有模板的，文件扩展名与模板一样；没有模板的，文件扩展名为“.xls”； /// </summary> /// <returns>内存流</returns> public MemoryStream Save() { MemoryStream ms = new MemoryStream(); Book.Write(ms); return ms; } /// <summary> /// 把Excel读成DataSet /// 注：必须是正规表格式 /// </summary> /// <returns>读出的Excel</returns> public DataSet ReadAsDataSet() { DataSet rtn = new DataSet(); for (int i = 0; i < SheetCount; i++) { ISheet sheet = Book.GetSheetAt(i); rtn.Tables.Add(GetDataTableBySheet(sheet)); } return rtn; } private DataTable GetDataTableBySheet(ISheet sheet) { DataTable dt = new DataTable(sheet.SheetName); int maxCols = 0; object value; while ((value = ReadValue(sheet, 0, maxCols)) != null) { dt.Columns.Add(value.ToString()); maxCols++; } int row = 1; bool emptyRow = false; int emptyRowCount = 0; while (emptyRowCount < 10) { emptyRow = true; DataRow dr = dt.NewRow(); for (int i = 0; i < maxCols; i++) { value = ReadValue(sheet, row, i); if (value != null) { dr[i] = value; emptyRow = false; } } if (!emptyRow) { dt.Rows.Add(dr); emptyRowCount = 0; } else { emptyRowCount++; } row++; } return dt; } /// <summary> /// 根据SheetName导出数据为DataTable /// </summary> /// <param name="sheetName">Sheet名称</param> /// <returns></returns> public DataTable GetDataTableBySheet(string sheetName) { ISheet sheet = Book.GetSheet(sheetName); if (sheet != null) { return GetDataTableBySheet(sheet); } return null; } /// <summary> /// 根据SheetName导出数据为DataTable /// </summary> /// <param name="sheetIndex">Sheet编号</param> /// <returns></returns> public DataTable GetDataTableBySheet(int sheetIndex) { ISheet sheet = Book.GetSheetAt(sheetIndex); if (sheet != null) { return GetDataTableBySheet(sheet); } return null; } /// <summary> /// 写入表格 /// </summary> /// <param name="Data">表格数据</param> /// <param name="col">写入的起始列</param> /// <param name="row">写入的起始行</param> /// <param name="titleColor">标题颜色</param> /// <param name="fullBorder">是否需要四周边框</param> public void WriteDataTable(DataTable Data, int col = 1, int row = 1, short? titleColor = null, bool fullBorder = true) { if (Data == null) { return; } var titleStyle = CreateCellStyle(); var rowStyle = CreateCellStyle(); if (titleColor != null) titleStyle.FillForegroundColor = titleColor.Value; titleStyle.FillPattern = FillPatternType.SOLID_FOREGROUND; if (fullBorder) { titleStyle.BorderBottom = BorderStyle.THIN; titleStyle.BorderLeft = BorderStyle.THIN; titleStyle.BorderRight = BorderStyle.THIN; titleStyle.BorderTop = BorderStyle.THIN; titleStyle.BottomBorderColor = NPOIColor.BLACK; titleStyle.LeftBorderColor = NPOIColor.BLACK; titleStyle.RightBorderColor = NPOIColor.BLACK; titleStyle.TopBorderColor = NPOIColor.BLACK; rowStyle.BorderBottom = BorderStyle.THIN; rowStyle.BorderLeft = BorderStyle.THIN; rowStyle.BorderRight = BorderStyle.THIN; rowStyle.BorderTop = BorderStyle.THIN; rowStyle.BottomBorderColor = NPOIColor.BLACK; rowStyle.LeftBorderColor = NPOIColor.BLACK; rowStyle.RightBorderColor = NPOIColor.BLACK; rowStyle.TopBorderColor = NPOIColor.BLACK; } int iCol = 0, iRow = 1; foreach (DataColumn dc in Data.Columns) { SetValue(row, col + iCol, dc.ColumnName); SetStyle(row, col + iCol, titleStyle); iCol++; } rowStyle.FillForegroundColor = NPOIColor.WHITE; foreach (DataRow dr in Data.Rows) { iCol = 0; foreach (DataColumn dc in Data.Columns) { SetValue(row + iRow, col + iCol, dr[dc]); SetStyle(row + iRow, col + iCol, rowStyle); iCol++; } iRow++; } for (int i = 0; i < iCol; i++) { this.AutoColWidth(i); } } /// <summary> /// 读取单元格的值 /// 注：只对当前ActiveSheet有效 /// </summary> /// <param name="rowIndex">行号</param> /// <param name="columnIndex">列号</param> /// <returns>单元格的值</returns> public object ReadValue(ISheet sheet, int rowIndex, int columnIndex, bool? isDateTime = null) { try { ICell cell = sheet.GetRow(rowIndex).GetCell(columnIndex); short df = cell.CellStyle.DataFormat; //return cell.ToString(); switch (cell.CellType) { case CellType.BLANK: return null; case CellType.BOOLEAN: return cell.BooleanCellValue; case CellType.ERROR: throw new Exception("Cell Value Error"); case CellType.FORMULA: { switch (cell.CachedFormulaResultType) { case CellType.BLANK: return ""; case CellType.BOOLEAN: return cell.BooleanCellValue; case CellType.ERROR: throw new Exception("Cell Value Error"); case CellType.FORMULA: throw new Exception("The formula of this cell is too complex！"); case CellType.NUMERIC: if (isDateTime == null) { if (DateUtil.IsCellDateFormatted(cell)) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } else if (isDateTime == true) { return cell.DateCellValue; } else { return cell.NumericCellValue; } case CellType.STRING: return cell.StringCellValue; case CellType.Unknown: return cell.ToString(); default: return cell.ToString(); } } case CellType.NUMERIC: { if (isDateTime == null) { if (DateUtil.IsCellDateFormatted(cell)) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } else if (isDateTime == true) { return cell.DateCellValue; } else { return cell.NumericCellValue; } } case CellType.STRING: return cell.StringCellValue; case CellType.Unknown: return cell.ToString(); default: return cell.ToString(); } } catch (System.NullReferenceException) { return null; } catch (Exception ex) { throw ex; } } public int SheetCount { get { return Book.NumberOfSheets; } } public string GetSheetName(int index) { return Book.GetSheetName(index); } public void AddPicture(byte[] data, int row, int col) { int picIndex = Book.AddPicture(data, PictureType.PNG); IDrawing draw = ActiveSheet.CreateDrawingPatriarch(); IClientAnchor anchor = draw.CreateAnchor(0, 0, 255, 255, col, row, col + 5, col + 5); IPicture pic = draw.CreatePicture(anchor, picIndex); pic.Resize(); } } public enum OperatorTypes { /// <summary> /// 介于最大值与小值之间 /// </summary> BETWEEN = OperatorType.BETWEEN, /// <summary> /// 等于最小值 /// </summary> EQUAL = OperatorType.EQUAL, /// <summary> /// 大于或等于最小值 /// </summary> GREATER_OR_EQUAL = OperatorType.GREATER_OR_EQUAL, /// <summary> /// 大于最小值 /// </summary> GREATER_THAN = OperatorType.GREATER_THAN, /// <summary> /// 忽略 /// </summary> NO_COMPARISON = OperatorType.IGNORED, /// <summary> /// 小于或等于最小值 /// </summary> LESS_OR_EQUAL = OperatorType.LESS_OR_EQUAL, /// <summary> /// 小于最小值 /// </summary> LESS_THAN = OperatorType.LESS_THAN, /// <summary> /// 不在最小值与最大值之间 /// </summary> NOT_BETWEEN = OperatorType.NOT_BETWEEN, /// <summary> /// 不等于最小值 /// </summary> NOT_EQUAL = OperatorType.NOT_EQUAL } public enum NPOIDataType { /// <summary> /// 验证整数 /// </summary> Integer, /// <summary> /// 验证符点数 /// </summary> Float, /// <summary> /// 验证日期 /// </summary> Date, /// <summary> /// 验证时间 /// </summary> Time, /// <summary> /// 验证字符长度 /// </summary> TextLength } public static class NPOIColor { /// <summary> /// 红色 /// </summary> public static short RED { get { return NPOI.HSSF.Util.HSSFColor.RED.index; } } /// <summary> /// 蓝色 /// </summary> public static short BLUE { get { return NPOI.HSSF.Util.HSSFColor.BLUE.index; } } /// <summary> /// 浅绿色 /// </summary> public static short AQUA { get { return NPOI.HSSF.Util.HSSFColor.AQUA.index; } } /// <summary> /// 自动 /// </summary> public static short AUTOMATIC { get { return NPOI.HSSF.Util.HSSFColor.AUTOMATIC.index; } } /// <summary> /// 黑色 /// </summary> public static short BLACK { get { return NPOI.HSSF.Util.HSSFColor.BLACK.index; } } /// <summary> /// 蓝灰色 /// </summary> public static short BLUE_GREY { get { return NPOI.HSSF.Util.HSSFColor.BLUE_GREY.index; } } /// <summary> /// 明绿色 /// </summary> public static short BRIGHT_GREEN { get { return NPOI.HSSF.Util.HSSFColor.BRIGHT_GREEN.index; } } /// <summary> /// 棕色 /// </summary> public static short BROWN { get { return NPOI.HSSF.Util.HSSFColor.BROWN.index; } } /// <summary> /// 正常 /// </summary> public static short COLOR_NORMAL { get { return NPOI.HSSF.Util.HSSFColor.COLOR_NORMAL; } } /// <summary> /// 珊瑚色 /// </summary> public static short CORAL { get { return NPOI.HSSF.Util.HSSFColor.CORAL.index; } } /// <summary> /// 亮蓝色 /// </summary> public static short CORNFLOWER_BLUE { get { return NPOI.HSSF.Util.HSSFColor.CORNFLOWER_BLUE.index; } } /// <summary> /// 深蓝色 /// </summary> public static short DARK_BLUE { get { return NPOI.HSSF.Util.HSSFColor.DARK_BLUE.index; } } /// <summary> /// 深绿色 /// </summary> public static short DARK_GREEN { get { return NPOI.HSSF.Util.HSSFColor.DARK_GREEN.index; } } /// <summary> /// 深红色 /// </summary> public static short DARK_RED { get { return NPOI.HSSF.Util.HSSFColor.DARK_RED.index; } } /// <summary> /// 深茶色 /// </summary> public static short DARK_TEAL { get { return NPOI.HSSF.Util.HSSFColor.DARK_TEAL.index; } } /// <summary> /// 深黄 /// </summary> public static short DARK_YELLOW { get { return NPOI.HSSF.Util.HSSFColor.DARK_YELLOW.index; } } /// <summary> /// 金色 /// </summary> public static short GOLD { get { return NPOI.HSSF.Util.HSSFColor.GOLD.index; } } /// <summary> /// 绿色 /// </summary> public static short GREEN { get { return NPOI.HSSF.Util.HSSFColor.GREEN.index; } } /// <summary> /// 25%灰色 /// </summary> public static short GREY_25_PERCENT { get { return NPOI.HSSF.Util.HSSFColor.GREY_25_PERCENT.index; } } /// <summary> /// 40%灰色 /// </summary> public static short GREY_40_PERCENT { get { return NPOI.HSSF.Util.HSSFColor.GREY_40_PERCENT.index; } } /// <summary> /// 50%灰色 /// </summary> public static short GREY_50_PERCENT { get { return NPOI.HSSF.Util.HSSFColor.GREY_50_PERCENT.index; } } /// <summary> /// 80%灰色 /// </summary> public static short GREY_80_PERCENT { get { return NPOI.HSSF.Util.HSSFColor.GREY_80_PERCENT.index; } } /// <summary> /// 靛蓝色 /// </summary> public static short INDIGO { get { return NPOI.HSSF.Util.HSSFColor.INDIGO.index; } } /// <summary> /// 淡紫色 /// </summary> public static short LAVENDER { get { return NPOI.HSSF.Util.HSSFColor.LAVENDER.index; } } /// <summary> /// 粉黄色 /// </summary> public static short LEMON_CHIFFON { get { return NPOI.HSSF.Util.HSSFColor.LEMON_CHIFFON.index; } } /// <summary> /// 淡蓝色 /// </summary> public static short LIGHT_BLUE { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_BLUE.index; } } /// <summary> /// 淡亮蓝色 /// </summary> public static short LIGHT_CORNFLOWER_BLUE { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_CORNFLOWER_BLUE.index; } } /// <summary> /// 淡绿色 /// </summary> public static short LIGHT_GREEN { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_GREEN.index; } } /// <summary> /// 淡桔黄色 /// </summary> public static short LIGHT_ORANGE { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_ORANGE.index; } } /// <summary> /// 淡蓝绿色 /// </summary> public static short LIGHT_TURQUOISE { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_TURQUOISE.index; } } /// <summary> /// 淡黄色 /// </summary> public static short LIGHT_YELLOW { get { return NPOI.HSSF.Util.HSSFColor.LIGHT_YELLOW.index; } } /// <summary> /// 绿黄色 /// </summary> public static short LIME { get { return NPOI.HSSF.Util.HSSFColor.LIME.index; } } /// <summary> /// 栗色 /// </summary> public static short MAROON { get { return NPOI.HSSF.Util.HSSFColor.MAROON.index; } } /// <summary> /// 橄榄绿色 /// </summary> public static short OLIVE_GREEN { get { return NPOI.HSSF.Util.HSSFColor.OLIVE_GREEN.index; } } /// <summary> /// 桔色 /// </summary> public static short ORANGE { get { return NPOI.HSSF.Util.HSSFColor.ORANGE.index; } } /// <summary> /// 白灰蓝色 /// </summary> public static short PALE_BLUE { get { return NPOI.HSSF.Util.HSSFColor.PALE_BLUE.index; } } /// <summary> /// 粉红色 /// </summary> public static short PINK { get { return NPOI.HSSF.Util.HSSFColor.PINK.index; } } /// <summary> /// 紫红色 /// </summary> public static short PLUM { get { return NPOI.HSSF.Util.HSSFColor.PLUM.index; } } /// <summary> /// 玫瑰红色 /// </summary> public static short ROSE { get { return NPOI.HSSF.Util.HSSFColor.ROSE.index; } } /// <summary> /// 高贵蓝 /// </summary> public static short ROYAL_BLUE { get { return NPOI.HSSF.Util.HSSFColor.ROYAL_BLUE.index; } } /// <summary> /// 海绿色 /// </summary> public static short SEA_GREEN { get { return NPOI.HSSF.Util.HSSFColor.SEA_GREEN.index; } } /// <summary> /// 天空蓝 /// </summary> public static short SKY_BLUE { get { return NPOI.HSSF.Util.HSSFColor.SKY_BLUE.index; } } /// <summary> /// 棕褐色 /// </summary> public static short TAN { get { return NPOI.HSSF.Util.HSSFColor.TAN.index; } } /// <summary> /// 茶色 /// </summary> public static short TEAL { get { return NPOI.HSSF.Util.HSSFColor.TEAL.index; } } /// <summary> /// 蓝绿色 /// </summary> public static short TURQUOISE { get { return NPOI.HSSF.Util.HSSFColor.TURQUOISE.index; } } /// <summary> /// 紫色 /// </summary> public static short VIOLET { get { return NPOI.HSSF.Util.HSSFColor.VIOLET.index; } } /// <summary> /// 白色 /// </summary> public static short WHITE { get { return NPOI.HSSF.Util.HSSFColor.WHITE.index; } } /// <summary> /// 黄色 /// </summary> public static short YELLOW { get { return NPOI.HSSF.Util.HSSFColor.YELLOW.index; } } } /// <summary> /// 针对excel的Oledb /// </summary> public class OleDbExcel { /// <summary> /// OLEDB连接 /// </summary> public OleDbConnection Connection { get; set; } /// <summary> /// 用Oledb对Excel进行操作 /// 注：必须是标准表形式Excel内容 /// </summary> /// <param name="excelFile">Excel文件</param> public OleDbExcel(string excelFile) { string conStr = string.Empty; FileInfo file = new FileInfo(excelFile); if (!file.Exists) { throw new Exception("文件不存在"); } string extension = file.Extension; switch (extension) { case ".xls": conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + excelFile + ";Extended Properties='Excel 8.0;HDR=Yes;IMEX=1;'"; break; case ".xlsx": conStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + excelFile + ";Extended Properties='Excel 12.0;HDR=Yes;IMEX=1;'"; break; default: conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + excelFile + ";Extended Properties='Excel 8.0;HDR=Yes;IMEX=1;'"; break; } //链接Excel Connection = new OleDbConnection(conStr); } private List<string> tableNames; /// <summary> /// 获取Excel内的Sheet名称 /// </summary> public List<string> Sheets { get { if (tableNames == null) { try { tableNames = new List<string>(); //读取Excel里面的sheet名 Connection.Open(); DataTable schemaTable = Connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" }); for (int i = 0; i < schemaTable.Rows.Count; i++) { DataRow dr = schemaTable.Rows[i]; string tbName = dr["table_name"].ToString(); if (tbName[tbName.Length - 1] == '$') { tableNames.Add(tbName); } } Connection.Close(); } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } return tableNames; } } /// <summary> /// 查询出所有数据 /// </summary> /// <param name="tableName">Sheet名称</param> /// <returns>sheet内的所有数据</returns> public DataSet QueryAll(string tableName) { try { DataSet excelData = new DataSet(); OleDbDataAdapter adapter = new OleDbDataAdapter(); adapter.SelectCommand = new OleDbCommand(); adapter.SelectCommand.Connection = Connection; adapter.SelectCommand.CommandText = string.Format("SELECT * FROM {0}", "[" + tableName + "]"); adapter.Fill(excelData); return excelData; } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } /// <summary> /// 查询出所有数据 /// </summary> /// <param name="tableIndex">Sheet序号（从0开始）</param> /// <returns>sheet内的所有数据</returns> public DataSet QueryAll(int tableIndex) { return QueryAll(Sheets[tableIndex]); } /// <summary> /// 利用Sql进行查询 /// </summary> /// <param name="sql">Sql语句</param> /// <returns>查询出的数据</returns> public DataSet Query(string sql) { try { DataSet excelData = new DataSet(); OleDbDataAdapter adapter = new OleDbDataAdapter(sql, Connection); adapter.Fill(excelData); return excelData; } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } /// <summary> /// 利用Sql进行查询 /// </summary> /// <param name="sql">Sql语句</param> /// <param name="param">查询参数</param> /// <returns>查询出的数据</returns> public DataSet Query(string sql, params OleDbParameter[] param) { try { DataSet excelData = new DataSet(); OleDbDataAdapter adapter = new OleDbDataAdapter(sql, Connection); adapter.SelectCommand.Parameters.AddRange(param); adapter.Fill(excelData); return excelData; } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } /// <summary> /// 利用Sql进行数据操作 /// </summary> /// <param name="sql">sql语句</param> /// <returns>影响的行数</returns> public int ExecuteSql(string sql) { try { Connection.Open(); OleDbCommand cmd = Connection.CreateCommand(); cmd.CommandText = sql; int rtn = cmd.ExecuteNonQuery(); Connection.Close(); return rtn; } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } /// <summary> /// 利用Sql进行数据操作 /// </summary> /// <param name="sql">sql语句</param> /// <param name="param">执行参数</param> /// <returns>影响的行数</returns> public int ExecuteSql(string sql, params OleDbParameter[] param) { try { Connection.Open(); OleDbCommand cmd = Connection.CreateCommand(); cmd.CommandText = sql; cmd.Parameters.AddRange(param); int rtn = cmd.ExecuteNonQuery(); Connection.Close(); return rtn; } catch (Exception ex) { if (Connection.State != ConnectionState.Closed) { Connection.Close(); } throw new Exception(ex.Message, ex); } } }
3、后台引用
[HttpPost] public ActionResult Import(HttpPostedFileBase importfile, SGM_ShenHeForm form, int? pageSize, int? CurrentPageIndex, int? ReplaceFlag = 0) { importfile = Request.Files["importfile"]; if (importfile == null) { return Content("<script>alert('未选择文件！');history.go(-1);</script>"); }
NPOIExcel excel = new NPOIExcel(importfile.InputStream, importfile.FileName); var ITEM_SERI_STR = excel.ReadValue(i, 2); //获取excel里的值 }
4、界面、JS
<div style="margin-top: 10px; margin-bottom: 5px; position: relative; overflow-y: hidden;display:inline"> <input type="button" id="btnImport" value="导入" /> <input name="importfile" id="importfile" type="file" style="opacity: 0; filter: alpha(opacity=0); 80px; font-size: 15px; position: absolute; top: 0; left: 0; margin-left: -15px;" accept=".xls,.xlsx" onchange=" $.messager.progress({title: '请稍候',msg: '正在处理数据...'});Import();" /> </div>
function Import() { debugger; var old = $("#f1").attr("action"); //form 表单的ID $("#f1").attr("action", "@Url.Action("Import")"); $("#f1").attr("enctype", "multipart/form-data"); $("#f1").submit(); $("#f1").attr("action", old); }
前台也可以是不用表单形式，放一个 <input type="file" name="upfile" value=" " /> 按钮提交到后台一个方法，方法里接收file
5、效果
点击导入按钮后弹出选择文件框，选择excel文件后（双击或者打开）直接提交后台
