spring boot导出excel

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        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet("商品信息表");
    	Result<List<Map<String, Object>>> resultQuery = shoppingFacade.pcExportExcel(map);
    	List<Map<String , Object>> list = resultQuery.getData();
    	
        String fileName = "shopping"+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())  + ".xls";//设置要导出的文件的名字
        //新增数据行，并且设置单元格数据

        int rowNum = 1;

        String[] headers = { "商品名称", "商品id", "折扣", "原价", "现价"};
        //headers表示excel表中第一行的表头

        HSSFRow row = sheet.createRow(0);
        //在excel表中添加表头

        for(int i=0;i<headers.length;i++){
            HSSFCell cell = row.createCell(i);
            HSSFRichTextString text = new HSSFRichTextString(headers[i]);
            cell.setCellValue(text);
        }

        //在表中存放查询到的数据放入对应的列
        for (int i =0 ; i < list.size() && i <= 60000 ; i ++) {
            HSSFRow row1 = sheet.createRow(rowNum);
            Map<String, Object> map_ = list.get(i);
            row1.createCell(0).setCellValue((String) map_.get("name"));
            row1.createCell(1).setCellValue((Long) map_.get("id"));
            row1.createCell(2).setCellValue((String) map_.get("discount"));
            row1.createCell(3).setCellValue((Long) map_.get("price"));
            row1.createCell(4).setCellValue((Long) map_.get("discount_price"));
            
            rowNum++;
        }

        response.setContentType("application/octet-stream");
        response.setHeader("Content-disposition", "attachment;filename=" + fileName);
        response.flushBuffer();
        workbook.write(response.getOutputStream());

注：此文件是导出2003版本的excel文件，如果要导出2007需要有几个地方变动：
XSSFWorkbook
XSSFSheet
XSSFRow
HSSFCell
HSSFCellStyle