将数据库表导出到Excel.doc

将数据库表导出到Excel，并生成文件（C#实现）关键词： C#, ASP.NET, Excel 需添加项目引用：1. .NET-System.Data.OracleClient.dll2. COM-Microsoft Excel 11.0 Object Library代码如下：using System;using System.IO;using System.Data;using System.Reflection;using System.Diagnostics;using System.Configuration;using System.Collections;using Excel;namespace ProtoType/ / 套用模板输出Excel，生成xls文件和html文件/ Author: Liu Wen/ Date Created: 2006-8/ public class ExportExcel#region variable memberprotected string templateFile = null;protected string excelFile = null;protected string htmlFile = null;protected object missing = Missing.Value;Excel.ApplicationClass app;Excel.Workbook book;Excel.Worksheet sheet;Excel.Range range;private DateTime beforeTime;/Excel启动之前时间private DateTime afterTime;/Excel启动之后时间#endregion/ / 构造函数，将一个已有Excel工作簿作为模板，并指定输出路径/ / Excel模板文件路径 / Excel输出文件路径 / Html输出文件路径 public ExportExcel(string templateFile, string excelFile, string htmlFile)if(templateFile = null)throw new Exception(Excel模板文件路径不能为空！);if(excelFile = null)throw new Exception(Excel输出文件路径不能为空！);if(htmlFile = null)throw new Exception(Html输出文件路径不能为空！);if(!File.Exists(templateFile)throw new Exception(指定路径的Excel模板文件不存在！);this.templateFile = templateFile;this.excelFile = excelFile;this.htmlFile = htmlFile;/创建一个Application对象beforeTime = DateTime.Now;app = new ApplicationClass();/app.Visible = true;afterTime = DateTime.Now;/打开模板文件，得到WorkBook对象trybook = app.Workbooks.Open(templateFile,missing,missing,missing,missing,missing,missing,missing,missing,missing,missing,missing,missing,missing,missing);catch (Exception e)throw e;/得到WorkSheet对象sheet = (Excel.Worksheet)book.Sheets.get_Item(1);/ / 将DataTable数据导出到Excel（可动态插入行）/ / DataTable / 插入行的索引 / 插入列的索引 public void DataTableToExcel(System.Data.DataTable dt, int rowIndex, int colIndex)/range = sheet.get_Range(A7, missing);/range.Value2 = raogerrr;/string str = range.Text.ToString();int rowCount = dt.Rows.Count;/DataTable行数int colCount = dt.Columns.Count;/DataTable列数int iRow;int iCol;/将数据导出到相应的单元格for (iRow = 0; iRow rowCount; iRow+)/插入新行this.InsertRows(sheet, iRow+rowIndex);/填充当前行for (iCol = 0; iCol colCount; iCol+)sheet.CellsiRow+rowIndex, iCol+colIndex = dt.RowsiRowiCol.ToString();this.DeleteRows(sheet, rowCount+rowIndex);/Excel.QueryTables qts = sheet.QueryTables;/Excel.QueryTable qt = qts.Add(,);/qt.RefreshStyle = Excel.XlCellInsertionMode.xlInsertEntireRows;/qt.Refresh();/ / 将DataTable数据导出到Excel（可动态插入行）/ / DataTable / 插入数据的起始单元格 public void DataTableToExcel(System.Data.DataTable dt, string cellID)int rowIndex = sheet.get_Range(cellID, missing).Row;int colIndex = sheet.get_Range(cellID, missing).Column;int rowCount = dt.Rows.Count;/DataTable行数int colCount = dt.Columns.Count;/DataTable列数int iRow;int iCol;/利用二维数组批量写入string, array = new stringrowCount,colCount; for (iRow = 0; iRow rowCount; iRow+)for (iCol = 0; iCol colCount; iCol+)arrayiRow,iCol = dt.RowsiRowiCol.ToString();for (iRow = 0; iRow rowCount; iRow+)this.InsertRows(sheet, iRow+rowIndex);this.DeleteRows(sheet, rowCount+rowIndex);range = sheet.get_Range(cellID, missing);range = range.get_Resize(rowCount, colCount);range.Value2 = array;/ / 将DataTable数据导出到Excel（固定）/ / DataTable / 插入数据的起始单元格 public void DataTableToExcel2(System.Data.DataTable dt, string cellID)int rowCount = dt.Rows.Count;/DataTable行数int colCount = dt.Columns.Count;/DataTable列数int