java - 如何在解析 XML 并将它们作为新 XML 文件写回时保留转义字符，如 "或 &lt 或 &gt

Question

以下是使用的代码，下面的元素内容被更改，这是通过替换转义字符不需要的，

  <SelectionFilter>event.ProductType == &quot;CM_Media_Server&quot; and event.ProductVer == &quot;3.0.0.6&quot; and event.ProductPatch == &quot;0&quot;</SelectionFilter>

  <SelectionFilter>event.ProductType == "CM_Media_Server" and          event.ProductVer == "3.0.0.6" and event.ProductPatch == "0"</SelectionFilter>

下面是使用的代码，

         Document xmlDocument = DocumentBuilderFactory.newInstance()
                .newDocumentBuilder().parse(SourceXMLFile);
        XPath xPath = XPathFactory.newInstance().newXPath();
        XPathExpression exprPre = xPath
                .compile("/SPIRITConfiguration/@Version");
        NodeList list = (NodeList) exprPre.evaluate(xmlDocument,
                XPathConstants.NODESET);
        for (int i = 0; i < list.getLength(); i++) {
            list.item(i).setTextContent(ModelVersion.getValue());
        }

        // write the content back into new renamed xml file
        TransformerFactory transformerFactory = TransformerFactory
                .newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        DOMSource source = new DOMSource(xmlDocument);
        StreamResult result = new StreamResult(new File(DestxmlFile));
        transformer.transform(source, result);

请帮我解决这个问题。提前谢谢你。

Answer 1

在您的 DocumentBuilderFactory 上，您可以调用 setExpandEntityReferences 方法来关闭设置:

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setExpandEntityReferences(false);
Document xmlDocument = factory.newDocumentBuilder().parse(SourceXMLFile);