模版下载和Excel文件导入

模版下载

• 模版下载

模版下载

/**
     * 生成模版
     *
     * @param
     * @return AppResponse
     */
    public AppResponse ExcelFile() throws IOException {
        // 创建一个新的Excel工作簿
        Workbook workbook = new XSSFWorkbook();

        // 创建一个工作表
        Sheet sheet = workbook.createSheet("页面拨测模板");

        // 创建行并设置单元格值
        Row headerRow = sheet.createRow(0);
        headerRow.createCell(0).setCellValue("序号");
        headerRow.createCell(1).setCellValue("拨测地址");
        headerRow.createCell(2).setCellValue("正常状态码");
        headerRow.createCell(3).setCellValue("页面大小（KB）");
        headerRow.createCell(4).setCellValue("加载时间（S）");

        // 设置列宽
        sheet.setColumnWidth(0, 5000);
        sheet.setColumnWidth(1, 5000);
        sheet.setColumnWidth(2, 5000);
        sheet.setColumnWidth(3, 5000);
        sheet.setColumnWidth(4, 5000);

        FileOutputStream outputStream = null;

        //获取字典项 存储路径
        //TODO 数据库配置
        String path = dialDictDataService.getValue(DictConstants.MODEL_FILE);

        // 保存Excel文件
        try {
            outputStream = new FileOutputStream(path + "pageTemplate.xlsx");
            workbook.write(outputStream);
            logger.info("DialPageTaskComponent.downloadExcelFile-----------Excel模板生成成功");
        } catch (IOException e) {
            e.printStackTrace();
            logger.info("DialPageTaskComponent.downloadExcelFile-----------Excel模板生成失败");
            return AppResponse.failed("生成模版失败");
        } finally {
            IOUtils.closeQuietly(outputStream);
        }

        return AppResponse.ok();
    }

/**
     * 下载模版
     * @param response
     */
    public void downloadPageTemplate(HttpServletResponse response) {

        OutputStream out = null;
        InputStream in = null;
        ByteArrayOutputStream bos = null;
        String fileName = "pageTemplate导入模版";

        try {
            // 读取模板
            Resource res = new ClassPathResource("pageTemplate.xlsx");
            XSSFWorkbook workbook = new XSSFWorkbook(res.getInputStream());

            // 转换为字节流
            bos = new ByteArrayOutputStream();
            workbook.write(bos);
            byte[] barray = bos.toByteArray();
            in = new ByteArrayInputStream(barray);

            response.reset();
            response.setContentType("application/octet-stream");
            response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8") + ".xlsx");
            out = response.getOutputStream();
            byte[] b = new byte[1024];
            int len;
            while ((len = in.read(b)) > 0) {
                out.write(b, 0, len);
            }
            out.flush();
        } catch (Exception e) {
            logger.error("DialPageTaskComponent.downloadPageTemplate, 下载模板失败", e);
        } finally {
            if (null != in) {
                try {
                    in.close();
                } catch (IOException e) {
                    logger.error("DialPageTaskComponent.downloadPageTemplate, 关闭资源异常", e);
                }
                in = null;
            }
            if (null != out) {
                try {
                    out.close();
                } catch (IOException e) {
                    logger.error("DialPageTaskComponent.downloadPageTemplate, 关闭资源异常", e);
                }
                out = null;
            }
            if (null != bos) {
                try {
                    bos.flush();
                    bos.close();
                } catch (IOException e) {
                    logger.error("DialPageTaskComponent.downloadPageTemplate, 关闭资源异常", e);
                }
                out = null;
            }
        }
    }

    /**
     * 导入数据
     *
     * @param file
     * @return
     */
    public AppResponse<List<DialPageAddressResponseDTO>> importDial(MultipartFile file) {

        // 获取文件全名(包含扩展名)
        String excelName = file.getOriginalFilename();

        // 上传文件名格式校验
        if (!".xlsx".equals(excelName.substring(excelName.lastIndexOf(".")))) {
            logger.info("DialPageTaskComponent.importDial, 导入失败，请导入excel文件格式, {}", excelName);
            return AppResponse.failed("导入失败，请导入正确的excel文件格式!");
        }

        List<DialPageAddressResponseDTO> resultData = null;

        try {
            ExcelReader excelReader = ExcelUtil.getReader(file.getInputStream()).setIgnoreEmptyRow(false);
            if (excelReader.getSheets().size() != 1) {
                return AppResponse.failed("导入失败，excel内容不标准!");
            }
            // 校验excel是否含有图片
            Workbook workbook = new XSSFWorkbook(file.getInputStream());
            Map<String, PictureData> picMap = ExcelPicUtil.getPicMap(workbook, 0);
            if (CollectionUtil.isNotEmpty(picMap)) {
                return AppResponse.failed("导入失败，excel内容不标准!");
            }

            List<List<Object>> read = excelReader.read(0);
            // 校验excel题头
            AppResponse<Object> checkTitleAppResponse = checkTitle(read);
            if (!checkTitleAppResponse.isOk()) {
                logger.info("DialPageTaskComponent.importDial, 数据校验失败, data={}", checkTitleAppResponse);
                return AppResponse.failed(checkTitleAppResponse.getMsg());
            }

            resultData = this.handleData(read);
        } catch (Throwable e) {
            logger.error("DialPageTaskComponent.importDial, 读取文件失败", e);
            return AppResponse.failed("导入失败，excel读取异常！");
        }

        return AppResponse.ok(resultData);
    }

    /**
     * 校验表头
     *
     * @param read
     * @return AppResponse<Object>
     */
    private AppResponse<Object> checkTitle(List<List<Object>> read) {

        if (CollectionUtil.isEmpty(read) || CollectionUtil.size(read) < 4) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel内容不可为空, resultData={}", read);
            return AppResponse.failed("导入失败，excel内容不可为空！");
        }
        if (StringUtils.isBlank(String.valueOf(read.get(0).get(0)))) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel内容不可为空, read={}", read);
            return AppResponse.failed("DialPageTaskComponent.checkTitle, 导入失败，excel内容不可为空！");
        }
        List<Object> secondRow = read.get(1);
        if (CollectionUtil.isEmpty(secondRow)) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel内容不可为空, read={}", read);
            return AppResponse.failed("导入失败，excel内容不可为空！");
        }
        if (secondRow.size() != 4) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel表头不正确, secondRow={}", secondRow.size());
            return AppResponse.failed("导入失败，excel表头不正确！");
        }
        if (!"拨测地址".equals(String.valueOf(secondRow.get(0)))) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel表头不正确-拨测地址, dialAddress={}", secondRow.get(0));
            return AppResponse.failed("导入失败，excel表头不正确！" + String.valueOf(secondRow.get(0)));
        }
        if (!"正常响应码".equals(String.valueOf(secondRow.get(1)))) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel表头不正确-正常响应码, normalStatusCode={}", secondRow.get(1));
            return AppResponse.failed("导入失败，excel表头不正确！" + String.valueOf(secondRow.get(1)));
        }
        if (!"页面大小".equals(String.valueOf(secondRow.get(2)))) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel表头不正确-页面大小, responseTime={}", secondRow.get(2));
            return AppResponse.failed("导入失败，excel表头不正确！" + String.valueOf(secondRow.get(2)));
        }
        if (!"加载时间".equals(String.valueOf(secondRow.get(3)))) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，excel表头不正确-加载时间, responseTime={}", secondRow.get(3));
            return AppResponse.failed("导入失败，excel表头不正确！" + String.valueOf(secondRow.get(2)));
        }
        // 导入数据为空校验
        AppResponse<Object> checkDataIsEmptyappResponse = checkDataIsEmpty(read);
        if (!checkDataIsEmptyappResponse.isOk()) {
            logger.info("DialPageTaskComponent.checkTitle, 导入失败，内容填写不完整, responseData={}", checkDataIsEmptyappResponse);
            return AppResponse.failed(checkDataIsEmptyappResponse.getMsg());
        }

        return AppResponse.ok();
    }

    /**
     * 校验数据是否为空
     *
     * @param read
     * @return
     */
    private AppResponse<Object> checkDataIsEmpty(List<List<Object>> read) {

        // 去除最后的空行
        removeLastEmptyRow(read);
        StringBuffer message = new StringBuffer();
        StringBuffer emptyRowMsg = new StringBuffer();

        for (int i = 2; i < read.size(); i++) {
            if (read.get(i).size() == 0) {
                logger.info("DialPageTaskComponent.checkDataIsEmpty, 导入失败，数据单元格不能为空，{}", read.get(i).toString());
                emptyRowMsg.append("第").append(i - 1).append("行数据内容为空！").append("</br>");
            }
            if (read.get(i).size() < 4) {
                message.append("第").append(i - 1).append("行，内容填写不完整！" + String.valueOf(read.get(i)).replace("null", "")).append("</br>");
            }
            for (int j = 0; j < read.get(i).size(); j++) {
                if (StringUtils.equalsIgnoreCase(String.valueOf(read.get(i).get(j)), "null")) {
                    message.append("第").append(i - 1).append("行，第" + (j + 1) + "个单元格内容填写不完整！" + String.valueOf(read.get(i).get(j)).replace("null", "")).append("</br>");
                }
            }
        }

        if (StringUtils.isNotEmpty(emptyRowMsg.toString())) {
            return AppResponse.failed(emptyRowMsg.toString());
        }

        if (StringUtils.isNotEmpty(message.toString())) {
            return AppResponse.failed(message.toString());
        }

        return AppResponse.ok();
    }


    /**
     * 去除最后的空行
     *
     * @param read
     */
    public void removeLastEmptyRow(List<List<Object>> read) {

        for (int i = read.size() - 1; i >= 0; i--) {
            if (CollectionUtil.isNotEmpty(read.get(i))) {
                break;
            }
            read.remove(i);
        }
    }

    /**
     * 处理数据
     *
     * @param read 参数
     * @return List<WhiteList> 返回
     */
    public List<DialPageAddressResponseDTO> handleData(List<List<Object>> read) {
        List<DialPageAddressResponseDTO> resultData = new ArrayList<>();
        for (int i = 2; i < read.size(); i++) {
            DialPageAddressResponseDTO dialPageAddress = new DialPageAddressResponseDTO();
            dialPageAddress.setDialAddress(String.valueOf(read.get(i).get(0)).replace("null", ""));
            dialPageAddress.setNormalStatusCode(String.valueOf(read.get(i).get(1)).replace("null", ""));
            dialPageAddress.setPageSize(Integer.valueOf(String.valueOf(read.get(i).get(2)).replace("null", "")));
            dialPageAddress.setLoadTime(Integer.valueOf(String.valueOf(read.get(i).get(3)).replace("null", "")));
            resultData.add(dialPageAddress);
        }
        return resultData;
    }