导出数据到Excel通用的方法类，请应对需求自行修改。
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using System.Data; using System.IO; namespace IM.Common.Tools { public class Export { public string Encoding = "UTF-8"; System.Web.HttpResponse response = System.Web.HttpContext.Current.Response; public void EcportExcel(DataTable dt, string fileName) { if (dt != null) { StringWriter sw = new StringWriter(); CreateStringWriter(dt, ref sw); sw.Close(); response.Clear(); response.Buffer = true; response.Charset = Encoding; //this.EnableViewState = false; response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ".xls"); response.ContentType = "application/ms-excel"; //response.ContentEncoding = System.Text.Encoding.GetEncoding(Encoding) response.ContentEncoding = System.Text.Encoding.UTF8; response.Write(sw); response.End(); } } private void CreateStringWriter(DataTable dt, ref StringWriter sw) { string sheetName = "sheetName"; sw.WriteLine("<html xmlns:x="urn:schemas-microsoft-com:office:excel">"); sw.WriteLine("<head>"); sw.WriteLine("<!--[if gte mso 9]>"); sw.WriteLine("<xml>"); sw.WriteLine(" <x:ExcelWorkbook>"); sw.WriteLine(" <x:ExcelWorksheets>"); sw.WriteLine(" <x:ExcelWorksheet>"); sw.WriteLine(" <x:Name>" + sheetName + "</x:Name>"); sw.WriteLine(" <x:WorksheetOptions>"); sw.WriteLine(" <x:Print>"); sw.WriteLine(" <x:ValidPrinterInfo />"); sw.WriteLine(" </x:Print>"); sw.WriteLine(" </x:WorksheetOptions>"); sw.WriteLine(" </x:ExcelWorksheet>"); sw.WriteLine(" </x:ExcelWorksheets>"); sw.WriteLine("</x:ExcelWorkbook>"); sw.WriteLine("</xml>"); sw.WriteLine("<![endif]-->"); sw.WriteLine("</head>"); sw.WriteLine("<body>"); sw.WriteLine("<table>"); sw.WriteLine(" <tr>"); string[] columnArr = new string[dt.Columns.Count]; int i = 0; foreach (DataColumn columns in dt.Columns) { sw.WriteLine(" <td>" + columns.ColumnName + "</td>"); columnArr[i] = columns.ColumnName; i++; } sw.WriteLine(" </tr>"); foreach (DataRow dr in dt.Rows) { sw.WriteLine(" <tr>"); foreach (string columnName in columnArr) { sw.WriteLine(" <td style='vnd.ms-excel.numberformat:@'>" + dr[columnName] + "</td>"); } sw.WriteLine(" </tr>"); } sw.WriteLine("</table>"); sw.WriteLine("</body>"); sw.WriteLine("</html>"); } } }