思路：jsp\html样式文件直接保存成excel格式的xls文件。注（文件的前后加上了Excel文件的头尾信息）
<%@ page contentType="application/vnd.ms-excel;charset=GBK"%> 《《《《《=============================头文件格式
<%
response.setHeader("Content-disposition","inline; filename=test.xls");
out.clear();
%>
private static String AddExcelHead(){
StringBuffer sb = new StringBuffer();
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();
}
private static String AddExcelbottom(){
StringBuffer sb = new StringBuffer();
sb.append("</body>");
sb.append("</html>");
return sb.toString();
}