String inFile = fileUrl + "wordModel.doc";
        // 要报存的目标文件
        String tpFile = fileUrl + Date2.getDate() + Date2.getTime()
                + "wordModel.doc";
        Document doc;
        try {
            doc = new Document();
            doc.open(inFile);
            // java反射
            Class clazz = bfo.getClass();
            // Field[] fields = clazz.getDeclaredFields();// 所有属性
            Field[] fields = clazz.getDeclaredFields();
            //
            for (int i = 0; i < fields.length; i++) {
                if (fields[i].get(bfo) == null) {
                    doc.replaceAll("${" + fields[i].getName() + "}", "");
                } else {
                    doc.replaceAll("${" + fields[i].getName() + "}", fields[i]
                            .get(bfo).toString());
                }
            }
            doc.saveAs(tpFile);
            doc.close(false);
        } catch (Exception e1) {
            e1.printStackTrace();
        }
        try {
            Object obj = CommonUtil.downloadFileEx(tpFile);
            CommonUtil.downLoadFile(obj, fileName, "application/msword");
            File file = new File(tpFile);
            file.delete();
        } catch (Exception e) {
            e.printStackTrace();
        }

------解决方案--------------------

关键字：iText

最近刚做了一个iText套打PDF文件的prototype