java poi导出EXCEL xls文件代码

String _currentPage = request.getParameter("currentPage");
        Integer currentPage = 0;
        if(_currentPage == null){
            currentPage = 1;
        }else{
            currentPage = Integer.valueOf(_currentPage);
        }
        log.info("导出excel页码: " + currentPage);

        /**map为空时查询全部的配件信息*/
        Map map = new HashMap();
        map.put("flag",10);
        map.put("unionFlag",0); //0表示单件商品,而非组合商品。
        Integer totalSize = partsMgrService.totalPartsInfo(map);
        /**封装pageUtil对象*/
        PageUtil pageUtil = new PageUtil(totalSize,Integer.valueOf(currentPage));  //读取第一页,与partsmgr.jsp查询保持一致。
        map.put("pageUtil",pageUtil);
        //map.put("flag",10);
        list = partsMgrService.listPartsInfo(map);

        try {
            HSSFWorkbook wb = partsMgrService.export(list);  //调用service方法~!
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("Content-disposition", "attachment;filename=partsList.xls");
            OutputStream ouputStream = response.getOutputStream();
            wb.write(ouputStream);
            ouputStream.flush();
            ouputStream.close(); 

        } catch (Exception e) {
            e.printStackTrace();
            log.error("配件导出excel错误:", e);
        }  

@Override
    public HSSFWorkbook export(List<PartsInfoDTO> list) throws Exception{
        String[] excelHeader = {"ID", "编码", "名称","库存","成本价","市场价","销售价","重量","上架","所属品牌","所属分类","所属供应商","图片"};  

        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet("养车之家后台配件列表");
//        sheet.setDefaultRowHeight((short)300);
//        sheet.setDefaultColumnWidth((short)3000);
        sheet.setColumnWidth(0, 3766); //第一个参数代表列id(从0开始),第2个参数代表宽度值  参考 ："2012-08-10"的宽度为2500

//        sheet.setColumnWidth(0, 1000);
        /**没有效果 ~!!! 140123 huangjing
         * 是设置了sheet.autoSizeColumn(i);  的原因
         *  */
        sheet.setColumnWidth(1, 3766);
        sheet.setColumnWidth(2, 3766);
        sheet.setColumnWidth(3, 3766);
        sheet.setColumnWidth(4, 3766);
        sheet.setColumnWidth(5, 3766);
        sheet.setColumnWidth(6, 3766);
        sheet.setColumnWidth(7, 3766);
        sheet.setColumnWidth(8, 3766);
        sheet.setColumnWidth(9, 3766);
        sheet.setColumnWidth(10, 3766);
        sheet.setColumnWidth(11, 3766);
        sheet.setColumnWidth(12, 3766);        

        HSSFCellStyle style = wb.createCellStyle();
        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 垂直
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 水平
        style.setWrapText(true); //设置是否能够换行，能够换行为true  

        HSSFRow row = sheet.createRow((int) 0);
        for (int i = 0; i < excelHeader.length; i++) {
            HSSFCell cell = row.createCell(i);
            cell.setCellValue(excelHeader[i]);
            cell.setCellStyle(style);
//            sheet.autoSizeColumn(i);
        }  

        for (int i = 0; i < list.size(); i++) {
            row = sheet.createRow(i + 1);
            PartsInfoDTO dto = list.get(i);
            HSSFCell cell = null;
            cell = row.createCell(0);
            cell.setCellValue(dto.getId());
            cell.setCellStyle(style);

            cell = row.createCell(1);
            if(dto.getPartsCode() != null){
                cell.setCellValue(dto.getPartsCode());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(2);
            if(dto.getPartsName() != null){
                cell.setCellValue(dto.getPartsName());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(3);
            if(dto.getStoreNum() != null){
                cell.setCellValue(dto.getStoreNum());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(4);
            if(dto.getCostPrice() != null){
                cell.setCellValue(dto.getCostPrice());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(5);
            if(dto.getMarketPrice() != null){
                cell.setCellValue(dto.getMarketPrice());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(6);
            if(dto.getRetailPrice() != null){
                cell.setCellValue(dto.getRetailPrice());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(7);
            if(dto.getWeight() != null){
                cell.setCellValue(dto.getWeight());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(8);
            if(dto.getUpdown() == 0){
                cell.setCellValue("否");
            }else{
                cell.setCellValue("是");
            }
            cell.setCellStyle(style);

            cell = row.createCell(9);
            if(dto.getPartsBrandDto().getBrandName() != null){
                cell.setCellValue(dto.getPartsBrandDto().getBrandName());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            String typeName = "";
            if(dto.getPartsType2Dto().getTypeName() != null){
                typeName = dto.getPartsType2Dto().getTypeName();
            }else{
                typeName = "-";
            }
            if(dto.getPartsTypeDto().getTypeName() != null){
                typeName += "-" + dto.getPartsTypeDto().getTypeName();
            }else{
                typeName += "-";
            }
            cell = row.createCell(10);
            cell.setCellValue(typeName);
            cell.setCellStyle(style);

            cell = row.createCell(11);
            if(dto.getSupplyInfoDto().getSupplyName() != null){
                cell.setCellValue(dto.getSupplyInfoDto().getSupplyName());
            }else{
                cell.setCellValue("-");
            }
            cell.setCellStyle(style);

            cell = row.createCell(12);
            if(dto.getPic().equals("none.jpg")){
                cell.setCellValue("无");
            }else{
                cell.setCellValue("有");
            }
            cell.setCellStyle(style);

        }
        return wb;  

    }

实现从数据库中查询数据按当前分页来导出~!!!
导出效果图: