public void exportLog() throws Exception{        SystemUser currentUsr = getCurrentSystemUser();                //该用户的所有日志        List<TLogInfo> loglist=logService.getLogInfosByUserId(currentUsr.getId());                List<TLogInfo> list=new ArrayList<TLogInfo>();        if(loglist!=null && loglist.size()>0){            for(TLogInfo log:loglist){                TLogInfo export=new TLogInfo();                export.setProName(log.getProName());                export.setLogTitle(log.getLogTitle());                export.setLogType(log.getLogType());                export.setWorkTime(log.getWorkTime());                export.setLogFillTime(log.getLogFillTime());                list.add(export);            }        }        String templateFileName = "xlstemp/personallog.xls";        String resultFileName = "xlsresult/personallog.xls";        String path = ExcelUtil.createExcel(templateFileName, list,                resultFileName);        File file = new File(path);        byte[] bytes = FileUtils.readFileToByteArray(file);        downloadFile("信息.xls", bytes);        file.deleteOnExit();                    }

public static String createExcel(String templateFileName, List<?> list,            String resultFileName) {        // 创建XLSTransformer对象        XLSTransformer transformer = new XLSTransformer();        // 获取java项目编译后根路径        String class_path = ExcelUtil.class.getClassLoader().getResource("").getPath();        // 得到模板文件路径        String srcFilePath = class_path + templateFileName;        Map<String, Object> beanParams = new HashMap<String, Object>();        beanParams.put("list", list);        String destFilePath = class_path + resultFileName;        try {            // 生成Excel文件            transformer.transformXLS(srcFilePath, beanParams, destFilePath);            return destFilePath;        } catch (ParsePropertyException e) {            e.printStackTrace();        } catch (InvalidFormatException e) {            e.printStackTrace();        }catch (IOException e) {            e.printStackTrace();        }        return null;    }