在一些项目中，会遇到导出固定格式的word文档，这个时候我们可以使用模板freemarker来实现，本文先分享简单的字符串填充。

比如现在有一个word模板的样式如下

 我们填充好内容后(重点坑点：先采用记事本类似的将${A1}编辑好，复制到word模板中，确保${A1}是一个完整的整体)；然后点击word，另存为word 2003 xml文档(.xml)。业务代码中我们生成数据，最后在检查结果一列使用${xxx}来获取数据。

 

private static void test001() throws Exception{
        String word_xml_temp_01="D:\\data\\exportWord1\\tmp201.xml";
        Map<String,String> resultMap=getData01();
        String currentTime = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date());
        String filePath = new StringBuilder(currentTime).append(".doc").toString();
        FileUtil.mkdir(wordDir);
        File outFile = new File(new StringBuilder(wordDir).append("/").append(filePath).toString());
        Configuration configuration = new Configuration(Configuration.VERSION_2_3_20);
        configuration.setDefaultEncoding("utf-8");
        configuration.setDirectoryForTemplateLoading(new File(wordDir));
        InputStream inputStream = new FileInputStream(new File(word_xml_temp_01));
        String fileXmlPath = new StringBuilder(currentTime).append(".xml").toString();
        File xmlFile = new File(new StringBuilder(wordDir).append("/").append(fileXmlPath).toString());
        FileUtils.copyInputStreamToFile(inputStream, xmlFile);
        Template t = configuration.getTemplate(fileXmlPath, "utf-8");
        Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile), "utf-8"), 102400);
        t.process(resultMap, out);
        out.flush();
        out.close();
    }

 private static Map<String, String> getData01() {
        Map<String,String> resultMap=new HashMap<>();
        resultMap.put("A1","A1-101");
        resultMap.put("B1","B1-101");
        resultMap.put("B2","B2-101");
        resultMap.put("B3","B3-101");
        resultMap.put("B4","B4-101");
        resultMap.put("B5","B5-101");
        resultMap.put("B6","B6-101");
        resultMap.put("B7","B7-101");
        return resultMap;
    }

这样就在wordDir下面生成一份word文档，如果需要下载使用http中response输出即可；可以参考一下代码：

@RequestMapping(value = "/xxxx")
    public void exportToWordById(HttpServletRequest request, HttpServletResponse response) throws Exception {
        Map<String, String> resultMap = getDataMap();//获取数据
        String currentTime = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date());
        String filePath = new StringBuilder(currentTime).append(".doc").toString();
        FileUtil.mkdir(wordDir);
        File outFile = new File(new StringBuilder(wordDir).append("/").append(filePath).toString());
        Configuration configuration = new Configuration();
        configuration.setDefaultEncoding("utf-8");
        configuration.setDirectoryForTemplateLoading(new File(wordDir));

        ClassPathResource classPathResource = new ClassPathResource(XMLPATH_XML);
        InputStream inputStream = classPathResource.getInputStream();
        String fileXmlPath = new StringBuilder(String.valueOf(currentTime)).append(".xml").toString();
        File xmlFile = new File(new StringBuilder(wordDir).append("/").append(fileXmlPath).toString());
        FileUtils.copyInputStreamToFile(inputStream, xmlFile);

        Template t = configuration.getTemplate(fileXmlPath, "utf-8");
        Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile), "utf-8"), 102400);
        t.process(resultMap, out);
        out.flush();
        out.close();
        response.setContentType("application/msword");
        response.addHeader("Pargam", "no-cache");
        response.addHeader("Cache-Control", "no-cache");
        String exportFileName = filePath;
        String userAgent = request.getHeader("USER-AGENT");
        if (StringUtils.isNotEmpty(userAgent)) {
            if (userAgent.contains("MSIE")) {// IE浏览器
                exportFileName = URLEncoder.encode(exportFileName, "UTF8");
            } else if (userAgent.contains("Mozilla")) {// google,火狐浏览器
                exportFileName = new String(exportFileName.getBytes(), "ISO8859-1");
            } else {
                exportFileName = URLEncoder.encode(exportFileName, "UTF8");// 其他浏览器
            }
        }

        response.setHeader("content-disposition", "attachment;filename=" + exportFileName);
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(outFile));
        OutputStream os = response.getOutputStream();
        byte[] bs = new byte[1024 * 10];
        int size = bis.read(bs);
        while (size > 0) {
            os.write(bs, 0, size);
            size = bis.read(bs);
        }
        bis.close();
        os.flush();
        if (outFile != null) {
            outFile.delete();
        }
        if (inputStream != null) {
            inputStream.close();
        }
        if (xmlFile != null) {
            xmlFile.delete();
        }
    }

ClassPathResource classPathResource = new ClassPathResource(XMLPATH_XML);模板文件放置在maven项目源码的src\main\resources目录下；

重点：xml文件中${xxx}必须是一个整体；取值的key必须存在，可以设置初始化为空字符串；docker环境下读取路径使用ClassPathResource来读取模板文件。