java - 将 xml 存储到 xml 属性中

Question

如何将 xml 文档存储到 xml 属性中？我有这段代码，但输出给了我转义字符，左边是这些转义字符吗？

public static void main(String[] args) throws TransformerException,
    ParserConfigurationException  {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document doc = builder.newDocument();
        Element organizations = doc.createElement("ORGANIZATIONS");
        doc.appendChild(organizations);
        organizations.setAttribute("xml", "<root><first>01</first><second>02</second></root>");
        DOMSource domSource = new DOMSource(doc);
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty(OutputKeys.ENCODING, "ISO-8859-1");
        StreamResult sr = new StreamResult(new File("test.xml"));

        transformer.transform(domSource, sr);

    }

输出:

<ORGANIZATIONS xml="&lt;root&gt;&lt;first&gt;01&lt;/first&gt;&lt;second&gt;02&lt;/second&gt;&lt;/root&gt;"/>

Answer 1

这是正确的。在属性上设置时，应对 xml 进行转义。如果您想查看纯 xml，则必须将其放在元素上并强制使用 CDATA 部分:

transformer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, "thequalifiednameoftheelement");

CDATA 部分不能用于属性...属性不是为了填充 xml 文档而创建的...