数据导出Excel中文乱码

数据导出到EXCEL提供用户下载,当记录数大于5行时不会出现乱码.但只要不退出Excel,再删除除记录,当记录数小于5行时,导出也不会出现乱码.当然一旦退出Excel再导出就会出现乱码了.
可以试试

试下以下代码,加个头和尾
string a1 = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\">\n<head>\n<title>Datos</title>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=GB2312\" />\n<style>\n</style>\n</head>\n<body>\n";

string a2 = "\n</body>\n</html>";

Response.Write(a1 + sw.ToString() + a2);

另外，UTF7在office2007无法打开。

或者web.config中
requestEncoding="utf-8"
responseEncoding="utf-8"

  /// <summary>

        /// export error datatable

        /// </summary>

        /// <param name="dtError"></param>

        public void ExportErrorDataTable(DataTable dtError)

        {

            string fileName = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";//设置导出文件的名称

            System.Web.HttpContext curContext = System.Web.HttpContext.Current;

            curContext.Response.ContentType = "application/vnd.ms-excel";

            curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;

            curContext.Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(fileName, Encoding.UTF8).ToString());

            curContext.Response.Charset = "UTF-8";

            curContext.Response.Write(AddExcelHead());//显示excel的网格线

            curContext.Response.Write(ExportTable(dtError));//导出

            curContext.Response.Write(AddExcelbottom());//显示excel的网格线

            curContext.Response.Flush();

            curContext.Response.End();

        }

        #region 公共程序（导出excel）

        public static string ExportTable(DataTable tb)

        {

            string data = "";

            data += "<table cellspacing=\"0\" cellpadding=\"5\" rules=\"all\" border=\"0\">";

            //写出列名

            data += "<tr style=\"font-weight: bold; white-space: nowrap;\">";

            foreach (DataColumn column in tb.Columns)

            {

                data += "<td>" + column.ColumnName + "</td>";

            }

            data += "</tr>";

            //写出数据

            foreach (DataRow row in tb.Rows)

            {

                data += "<tr>";

                foreach (DataColumn column in tb.Columns)

                {

                    if (column.ColumnName.Equals("产品名称"))

                        data += "<td style=\"vnd.ms-excel.numberformat:@\">" + row[column].ToString().Replace('•', '.') + "</td>";

                    else

                        data += "<td style=\"vnd.ms-excel.numberformat:@\">" + row[column].ToString() + "</td>";

                }

                data += "</tr>";

            }

            if (tb.Rows.Count < 8)//因为少于8行的话，会出现乱码

            {

                for (int i = 0; i < 8; i++)

                {

                    data += "<tr>";

                    foreach (DataColumn column in tb.Columns)

                    {

                        data += "<td style=\"vnd.ms-excel.numberformat:@\">    </td>";

                    }

                    data += "</tr>";

                }

            }

            data += "</table>";

            return data;

        }

        public static string AddExcelHead()

        {

            StringBuilder sb = new StringBuilder();

            sb.Append("<html  xmlns:x=\"urn:schemas-microsoft-com:office:excel\">");

            sb.Append(" <head>");

            sb.Append(" <!--[if gte mso 9]><xml>");

            sb.Append("<x:ExcelWorkbook>");

            sb.Append("<x:ExcelWorksheets>");

            sb.Append("<x:ExcelWorksheet>");

            sb.Append("<x:Name></x:Name>");

            sb.Append("<x:WorksheetOptions>");

            sb.Append("<x:Print>");

            sb.Append("<x:ValidPrinterInfo />");

            sb.Append(" </x:Print>");

            sb.Append("</x:WorksheetOptions>");

            sb.Append("</x:ExcelWorksheet>");

            sb.Append("</x:ExcelWorksheets>");

            sb.Append("</x:ExcelWorkbook>");

            sb.Append("</xml>");

            sb.Append("<![endif]-->");

            sb.Append(" </head>");

            sb.Append("<body>");

            return sb.ToString();

        }

        public static string AddExcelbottom()

        {

            StringBuilder sb = new StringBuilder();

            sb.Append("</body>");

            sb.Append("</html>");

            return sb.ToString();

        }

        #endregion

巴特西

数据导出Excel中文乱码

最新文章

热门文章