java 填充word文件

时序图

代码实现

public FileDTO createNoticeLetter(NoticeCondition condition) {
        FileDTO res = null;
        Map philipp = getMap(condition);

        FileInputStream tempFile = null;
        InputStream inputStream = null;
        // 获取临时存储地址
        String uuid = UUID.randomUUID().toString();
        String tmpdir = uuid + ".docx";
        try {
            // 存放到项目 resource 文件夹中
            ClassPathResource classPathResource = new ClassPathResource("/docx-template/bankTemplate.docx");
            inputStream = classPathResource.getInputStream();

            log.info("告客户书获取模板文件输入流");
            // 设置变量内容
            WordprocessingMLPackage template = WordprocessingMLPackage.load(inputStream);
            // 填充模板文件
            Docx4JSRUtil.searchAndReplace(template, philipp);

            FileOutputStream outputStream = new FileOutputStream(new File(tmpdir),true);
            template.save(outputStream);
            outputStream.flush();
            log.info("告客户书模板文件填充完成{}", condition.getPolicyId());
            //获取本地文件
            tempFile = new FileInputStream(tmpdir);
            FileUploadReqDTO fileUploadReqDTO = FileUploadReqDTO.builder()
                .mimetype("docx")
                .name("告客户书.docx")
                .build();
            // 转byte[]
            byte[] content = readInputStream(tempFile);
            fileUploadReqDTO.setContent(ArrayUtils.toObject(content));
            // 上传告客户书
            res = Optional.ofNullable(fileFacade.upload(fileUploadReqDTO))
                .orElseThrow(() -> new ServiceException("查询告客户书失败"));
        } catch (Exception e) {
            log.error("告客户模板下载失败", e);
        } finally {
            if(null != inputStream){
                try {
                    inputStream.close();
                } catch (IOException e) {
                    log.error("告客户模板下载失败", e);
                }
            }
            if (tempFile != null) {
                try {
                    tempFile.close();
                    // 删除本地临时文件
                    File file = new File(tmpdir);
                    if(file.delete()){
                        log.info(file.getName() + " 文件已被删除！");
                    }else{
                        log.info(file.getName() + " 文件删除失败！");
                    }
                } catch (IOException e) {
                    log.error("文件上传失败", e);
                }
            }
        }
        return res;
    }

    private Map getMap(NoticeCondition condition){
        Map<String, String> philipp = Maps.<String, String>builder().put("${name}", "panda").build();
        return philipp;
    }

    /**
     * 从输入流中获取字节数组
     */
    private static byte[] readInputStream(FileInputStream inputStream) throws IOException {
        byte[] buffer = new byte[1024];
        int len = 0;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        while ((len = inputStream.read(buffer)) != -1) {
            bos.write(buffer, 0, len);
        }
        bos.close();
        return bos.toByteArray();
    }