简介Aspose.Cells是一款功能强大的 Excel 文档处理和转换控件,不依赖 Microsoft Excel 环境,支持所有 Excel 格式类型的操作。 获取Excel数据Workbook workbook = new Workbook("E:\\test.xlsx"); Cells cells = workbook.Worksheets[0].Cells;for (int i = 0; i < cells.MaxDataRow + 1; i++) { for (int j = 0; j < cells.MaxDataColumn + 1; j++) { string s = cells[i, j].StringValue.Trim(); //一行行的读取数据,插入数据库的代码也可以在这里写 } } 返回DataTable数据Workbook workbook = new Workbook("E:\\test.xlsx"); Cells cells = workbook.Worksheets[0].Cells; System.Data.DataTable dataTable1 = cells.ExportDataTable(1, 0, cells.MaxDataRow, cells.MaxColumn);//没有标题System.Data.DataTable dataTable2 = cells.ExportDataTable(0, 0, cells.MaxDataRow + 1, cells.MaxColumn, true);//有标题 无标题 有标题 使用小结生成Excel /// <summary>/// DataTable数据导出Excel/// </summary>/// <param name="data"></param>/// <param name="filepath"></param>public static void DataTableExport(DataTable data, string filepath) { try{ //Workbook book = new Workbook("E:\\test.xlsx"); //打开工作簿Workbook book = new Workbook(); //创建工作簿Worksheet sheet = book.Worksheets[0]; //创建工作表Cells cells = sheet.Cells; //单元格 //创建样式Aspose.Cells.Style style = book.Styles[book.Styles.Add()]; style.Borders[Aspose.Cells.BorderType.LeftBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //应用边界线 左边界线 style.Borders[Aspose.Cells.BorderType.RightBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //应用边界线 右边界线 style.Borders[Aspose.Cells.BorderType.TopBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //应用边界线 上边界线 style.Borders[Aspose.Cells.BorderType.BottomBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //应用边界线 下边界线 style.HorizontalAlignment = TextAlignmentType.Center; //单元格内容的水平对齐方式文字居中style.Font.Name = "宋体"; //字体style1.Font.IsBold = true; //设置粗体style.Font.Size = 11; //设置字体大小//style.ForegroundColor = System.Drawing.Color.FromArgb(153, 204, 0); //背景色 //style.Pattern = Aspose.Cells.BackgroundType.Solid; //背景样式 //style.IsTextWrapped = true; //单元格内容自动换行 //表格填充数据int Colnum = data.Columns.Count;//表格列数 int Rownum = data.Rows.Count;//表格行数 //生成行 列名行 for (int i = 0; i < Colnum; i++) { cells[0, i].PutValue(data.Columns[i].ColumnName); //添加表头cells[0, i].SetStyle(style); //添加样式 //cells.SetColumnWidth(i, data.Columns[i].ColumnName.Length * 2 + 1.5); //自定义列宽 //cells.SetRowHeight(0, 30); //自定义高} //生成数据行 for (int i = 0; i < Rownum; i++) { for (int k = 0; k < Colnum; k++) { cells[1 + i, k].PutValue(data.Rows[i][k].ToString()); //添加数据cells[1 + i, k].SetStyle(style); //添加样式 } cells[1 + i, 5].Formula = "=B" + (2 + i) + "+C" + (2 + i);//给单元格设置计算公式,计算班级总人数 } sheet.AutoFitColumns(); //自适应宽book.Save(filepath); //保存 GC.Collect(); } catch (Exception e) { logger.Error("生成excel出错:" + e.Message); } } 调用Excel(例子) public void DownExcel() { //创建DataTableDataTable dt = new DataTable("Table_AX"); dt.Columns.Add("班级名称", System.Type.GetType("System.String")); dt.Columns.Add("男生人数", System.Type.GetType("System.String")); dt.Columns.Add("女生人数", System.Type.GetType("System.String")); dt.Columns.Add("今日请假", System.Type.GetType("System.String")); dt.Columns.Add("今日迟到", System.Type.GetType("System.String")); Random ran = new Random(); for (int i = 1; i < 6; i++) { DataRow dr = dt.NewRow(); dr["班级名称"] = "软件技术" + i + "班"; dr["男生人数"] = ran.Next(1, 50); dr["女生人数"] = ran.Next(1, 50); dr["今日请假"] = ran.Next(0, 10); dr["今日迟到"] = ran.Next(1, 30); dt.Rows.Add(dr); } //地址string fileName = "班级概况.xls"; string filePath = AppDomain.CurrentDomain.BaseDirectory.Replace("\\", "/") + "GxContent/data/student/" + fileName + ""; //生成Excel ExcelHelper.DataTableExport(dt, filePath); //下载if (System.IO.File.Exists(filePath)) { try{ System.IO.FileInfo fileInfo = new System.IO.FileInfo(filePath); if (fileInfo.Exists == true) { //每次读取文件,只读取1M,这样可以缓解服务器的压力const long ChunkSize = 1048576; byte[] buffer = new byte[ChunkSize]; Response.Clear(); //获取文件System.IO.FileStream iStream = System.IO.File.OpenRead(filePath); //获取下载的文件总大小long dataLengthToRead = iStream.Length; Response.ContentType = "application/octet-stream"; //通知浏览器下载文件而不是打开 Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName); using (iStream)//解决文件占用问题,using 外 iStream.Dispose() 无法释放文件 { while (dataLengthToRead > 0 && Response.IsClientConnected) { int lengthRead = iStream.Read(buffer, 0, Convert.ToInt32(ChunkSize));//读取的大小Response.OutputStream.Write(buffer, 0, lengthRead); Response.Flush(); dataLengthToRead = dataLengthToRead - lengthRead; } iStream.Dispose(); iStream.Close(); } Response.End(); } } catch{ Response.Write("<script>alert('文件未占用或文件未生成,请稍后重试!');window.close();</script>"); } } else{ Response.Write("<script>alert('文件还未生成完,请稍后重试!');window.close();</script>"); } } |
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