将数据库表导出到将数据库表导出到 Excel，并生成文件（，并生成文件（C#实现）实现）关键词关键词： 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 beforeTime