Dom4j相关方法（创建、解析）

    /**
     * 组装测试报文
     * @param serviceId
     * @param serviceTime
     * @return
     */
    public static String getXmlInfo(String serviceId, String serviceTime) {
        //定义一个XML文档对象
        Document document = DocumentHelper.createDocument();
        // 文档增加节点，即根节点，一个文档只能有一个根节点，多加出错
        Element root = document.addElement("Service");
        // 添加注释
        //root.addComment("报文头");
        // 根节点下添加节点
        Element first = root.addElement("Service_Header");
        // 节点添加属性
        //first.addAttribute("index", "01");
        // 节点下添加节点
        Element service_sn = first.addElement("service_sn");
        Element service_id = first.addElement("service_id");
        Element branch_id = first.addElement("branch_id");
        Element requester_id = first.addElement("requester_id");
        Element channel_id = first.addElement("channel_id");
        Element version_id = first.addElement("version_id");
        Element service_time = first.addElement("service_time");
        // 节点设置内容数据
        service_sn.setText("000000000000000000");
        service_id.setText(serviceId);
        branch_id.setText("810101011");
        requester_id.setText("test");
        channel_id.setText("001");
        version_id.setText("01");
        service_time.setText(serviceTime);
        // 创建格式化类,默认生成的XML文件排版格式比较乱，可以通过OutputFormat类格式化输出
        // 默认采用createCompactFormat()显示比较紧凑，最好使用createPrettyPrint()
        OutputFormat outputFormat = OutputFormat.createPrettyPrint();
        outputFormat.setIndent(" ");
        outputFormat.setIndentSize(4);
        StringWriter formatXml = new StringWriter();
        // 创建xml输出流
        XMLWriter writer = new XMLWriter(formatXml, outputFormat);
        try {
            writer.write(document);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return formatXml.toString();
    }

/**
 * 解析resources下的XML文件
 */
private static void readXml() {
    //使用org.springframework.core.io.ClassPathResource，各种环境都能读取resources下的文件。（通用）
    Resource resource = new ClassPathResource("dome.xml");
    Document document = null;
    try {
        InputStream inputStream = resource.getInputStream();

        SAXReader saxReader = new SAXReader();
        //Document 定义了XML文档
        document = saxReader.read(inputStream);
    } catch (IOException e) {
        e.printStackTrace();
    } catch (DocumentException e) {
        e.printStackTrace();
    }
    //Element定义XML 元素
    Element rootElement = document.getRootElement();
    // 这样也可以
    //List elements = rootElement.elements();
    Iterator iterator = rootElement.elementIterator();
    while (iterator.hasNext()) {
        Element element = (Element) iterator.next();
        //Attribute定义了XML的属性
        List<Attribute> attributes = element.attributes();
        System.out.println("----------获取属性值--------------");
        for(Attribute attribute : attributes) {
            System.out.println(attribute.getValue());
        }
        System.out.println("----------遍历子节点--------------");
        Iterator iterator1 = element.elementIterator();
        while (iterator1.hasNext()) {
            Element element1 = (Element) iterator1.next();
            System.out.println("节点名：" + element1.getName() + "---节点值：" + element1.getStringValue());
        }
    }
}