FreeMark 填充World

FreeMaker模板填充Word下载

• Word工具类

/**
 * Word导出工具类.
 *
 * @author Pang 2020-10-23
 */
public class WordUtil {

    /**
     * 生成word文档.
     *
     * @param dataMap      填充数据
     * @param templateName 模板名称
     * @return 文件
     */
    public static File createWord(Map dataMap, String templateName) {

        try {
            //创建配置实例
            Configuration configuration = new Configuration(Configuration.getVersion());

            //设置编码
            configuration.setDefaultEncoding("UTF-8");

            //ftl模板文件
            configuration.setTemplateLoader(new ClassTemplateLoader(WordUtil.class, "/template/"));

            //获取模板
            Template template = configuration.getTemplate(templateName);

            //输出临时文件
            File outFile = File.createTempFile("temp", ".doc");

            //将模板和数据模型合并生成文件
            Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile), "UTF-8"));
            //生成文件
            template.process(dataMap, out);
            //关闭流
            out.flush();
            out.close();
            return outFile;
        } catch (Exception exception) {
            exception.printStackTrace();
            return null;
        }
    }

    /**
     * 导出文件.
     *
     * @param response     响应
     * @param map          填充的数据
     * @param templateName 模板名称
     * @throws IOException 读写异常
     */
    public static void exportMillCertificateWord(HttpServletResponse response,
                                                 Map map, String templateName) throws IOException {
        File file = null;
        InputStream fin = null;
        ServletOutputStream out = null;
        try {
            String fileName = "下载文件名" + System.currentTimeMillis() + ".doc";
            file = WordUtil.createWord(map, templateName);
            fin = new FileInputStream(file);
            response.setCharacterEncoding("utf-8");
            response.setContentType("application/msword");
            response.setHeader("Content-Disposition", "attachment;filename*=utf-8''"
                    .concat(String.valueOf(URLEncoder.encode(fileName, "UTF-8"))));
            out = response.getOutputStream();
            // 缓冲区
            byte[] buffer = new byte[1024];
            int bytesToRead = -1;
            // 通过循环将读入的Word文件的内容输出到浏览器中
            while ((bytesToRead = fin.read(buffer)) != -1) {
                out.write(buffer, 0, bytesToRead);
            }
        } finally {
            if (fin != null) {
                fin.close();
            }
            if (out != null) {
                out.close();
            }
            if (file != null) {
                // 删除临时文件
                file.deleteOnExit();
            }
        }

    }

• Word填充数据工具类

  /**
   * 申请信息word模板填充数据工具类.
   *
   * @author Pang 2020-10-24
   */
  public class WordDataUtil implements Serializable {
  
      /**
       * 向word模板填充数据.
       *
       * @param wordVo word导出信息实体类
       * @return 数据集
       */
      public static Map<String, Object> setDataToWord(WordVO wordVo) {
          converEmptyNullToString(applyWordVO);
          HashMap<String, Object> dataMap = new HashMap<>();
          dataMap.put("companyName", applyWordVO.getCompanyName());
          dataMap.put("companyAddress", applyWordVO.getCompanyAddress());
  
          return dataMap;
      }
  
      /**
       * 对象转换 将null转换成"" .
       *
       * @param object 对象
       */
      public static void converEmptyNullToString(Object object) {
  
          try {
              //利用反射获取类的所有属性
              Field[] fs = object.getClass().getDeclaredFields();
              for (int i = 0; i < fs.length; i++) {
                  Field f = fs[i];
                  //设置属性可以访问
                  f.setAccessible(true);
                  Object val = f.get(object);
                  //得到此属性的类型
                  String type = f.getType().toString();
                  if (type.endsWith("String")) {
                      if (!"" .equals(val) && null == val) {
                          f.set(object, "");
                      }
                  }
              }
          } catch (SecurityException exception) {
              exception.printStackTrace();
          } catch (IllegalArgumentException exception) {
              exception.printStackTrace();
          } catch (IllegalAccessException exception) {
              exception.printStackTrace();
          }
  
      }