docx4j处理word文档另起一页合并的解决方法，wps软件和office软件打开均有分页效果

合并文件方法：

/**
     * 合并docx输出文件流
     *
     * @param streams
     *            要合并的word文件的输入流
     * @return InputStream
     * @throws Docx4JException
     * @throws IOException
     */
    public static InputStream mergeDocx(final List<InputStream> streams) throws Docx4JException, IOException {
        WordprocessingMLPackage target = null;
        final File generated = (tmp, .docx);
        int cId = 0;
        Iterator<InputStream> it = streams.iterator();
        while (it.hat()) {
            InputStream is = ();
            if (is != null) {
                try {
                    if (target == null) {
                        //第一次插入创建
                        OutputStream os = new FileOutputStream(generated);
                        os.write((is));
                        ();
                        target = WordprocessingMLPackage.load(generated);
                    } else {
                        //其他文档在原有基础上追加
                        MainDocumentPart documentPart = target.getMainDocumentPart();
                        // 另起一页，换页
                        addPageBreak(documentPart);
                        // 插入文件内容
                        insertDocx(documentPart, (is), cId);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    ();
                }
            }
        }
        generated.deleteOnExit();
        if (target != null) {
            target.save(generated);
            return new FileInputStream(generated);
        } else {
            return null;
        }
    }

插入分页方法：

public static void addPageBreak(MainDocumentPart documentPart) {
        P paragraph = ();
        R run = ();
        Br br = ();
        br.setType(STBrType.PAGE);
        run.getContent().add(br);
        paragraph.getContent().add(run);
        documentPart.getJaxbElement().getBody().getContent().add(paragraph);
}