利用excel模板来导出excel文件， 十分方便

	@RequestMapping(value = "/download/vin", method = RequestMethod.GET)@ResponseBodypublic ResBody exportExcel(HttpServletRequest request) {String path = request.getSession().getServletContext().getRealPath("/download/");List<Map<String,Object>> list= (List<Map<String, Object>>) testService.findAllVinData(); //　准备好要导出的数据File file=null;try {file = ResourceUtils.getFile("classpath:/conf/testExcel.xlsx");// 模板的位置，classpath这个一定要写} catch (FileNotFoundException e) {			LOGGER.debug("===>找不到模版文件");e.printStackTrace();}return vnDownload(list,file,path);}	

public ResBody vnDownload(List<Map<String,Object>> list,File file,String path) {		Map<String,Object> beans = new HashMap<String,Object>();  beans.put("list",list);XLSTransformer transformer = new XLSTransformer();  InputStream in=null;  OutputStream out=null;String name ="testExcel" // 文件名自己根据需要设定try {  in=new BufferedInputStream(new FileInputStream(file));out = new FileOutputStream(path+ name);Workbook workbook=transformer.transformXLS(in, beans);  workbook.write(out);  out.flush();  return new ResBody(RespCode.CODE_0.getCode(),path+name);// 把下载地址返回给前端} catch (InvalidFormatException e) {  e.printStackTrace();  } catch (IOException e) {  e.printStackTrace();  } finally {  if (in!=null){try {in.close();} catch (IOException e) {}}  if (out!=null){try {out.close();} catch (IOException e) {}}  } return new ResBody();}

excel 模板放在这个文件夹下面，模板样子如下

把对应单元格的表头写好