用＆amp;解析xml ＆LT; ＆GT; “'由java DOM解析器

Question

美好的一天。

我上课了：

public class XmlModifier {

    private DocumentBuilderFactory docFactory = null;
    private DocumentBuilder docBuilder = null;
    private Document document = null;
    private TransformerFactory transformFactory = null;
    private Transformer transform = null;
    private DOMSource source = null;
    private StreamResult streamRes = null;
    private boolean exepDocBuilderAlarm = true;

    public XmlModifier() {
        this.docFactory = DocumentBuilderFactory.newInstance();
        try {
            this.docBuilder = docFactory.newDocumentBuilder();
        } catch (ParserConfigurationException e) {
            this.exepDocBuilderAlarm = false;
            e.printStackTrace();
        }
    }

    public void prepareXMLMessage(File file, String userName, String userPassword, String reqId, Integer NUMBER_OF_MSG_SENDS) {
        if (exepDocBuilderAlarm != false) {
            try {
                document = docBuilder.parse(file);
                setElementValues("si:sourceInfo", addElementsToArray("si:reqId,si:reqTag"), addElementsToArray(reqId + "," + reqId), NUMBER_OF_MSG_SENDS);
                setElementValues("usr:user", addElementsToArray("usr:id,usr:password"), addElementsToArray(userName + "," + userPassword), NUMBER_OF_MSG_SENDS);
                setElementValues("meth:method", addElementsToArray("meth:id,meth:tag"), addElementsToArray(reqId + "," + reqId), NUMBER_OF_MSG_SENDS);
                setElementValues("tb:tradeField", addElementsToArray("tb:value"), addElementsToArray(reqId), NUMBER_OF_MSG_SENDS);
                this.transformFactory = TransformerFactory.newInstance();
                this.transform = transformFactory.newTransformer();
                this.source = new DOMSource(document);
                this.streamRes = new StreamResult(file);
                this.transform.transform(source, streamRes);
                System.out.println("Done to execute XmlModifier");
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                this.docFactory = null;
                this.docBuilder = null;
                this.transformFactory = null;
                this.transform = null;
                this.source = null;
                this.streamRes = null;
            }
        }
    } 

    private void setElementValues(String rootElement, String[] childElements, String[] childElementsValues, Integer msgIDIncrement) {
        Node nodeRootElement = document.getElementsByTagName(rootElement).item(0);
        NodeList childElementlist = nodeRootElement.getChildNodes();
        for (int i = 0; i < childElements.length; i++) {
            for (int z = 0; z < childElementlist.getLength(); z++) {
                Node node = childElementlist.item(z);
                if (childElements[i].equals(node.getNodeName())) {
                    node.setTextContent(childElementsValues[i]);
                }
            }
        } 

    }

    private String[] addElementsToArray(String elements) {
        String[] theArray = null;
        theArray = elements.split(",");
        return theArray;
    }
}

在输入时我有xml，有时候形成不好。 DOM解析器的问题在于我的观点是DOM解析器从开始解析整个xml，我有像< > & " '这样的特殊符号对我不好。

如何输入prepareXMLMessage(..)为xml提供< > & " '，然后在prepareXMLMessage（..）中解析它没有问题（更改元素中的一些值），而不是作为输出提供xml { {1}}返回???

感谢您的帮助。