Java: how to use the w3c. Wrap all elements in DOM?

• Java

My goal is to wrap each DOM element (node. Element_node) in the current org. Org w3c. dom. On the document, the label is < something style = "background color: Red" > < / something >

public static void main(String[] args){
    org.w3c.dom.DOMDocument doc;
    paintAllNodes(doc,0);
}

public static void paintAllNodes(Node node,int level) {
    // Process node

    // If there are any children,visit each one
    NodeList list = node.getChildNodes();
    for (int i=0; i<list.getLength(); i++) {
        // Get child node
        Node childNode = list.item(i);        

        // Visit child node
        paintAllNodes(childNode,level+1);
    }
}

Solution

I would like to propose a recursive solution that uses the node#replacechild method to replace nodes with new labels:

public static void paintAllNodes(Node node) {
    if (node.getNodeType() == Node.ELEMENT_NODE) {
        Element somethingElement = node.getOwnerDocument().createElement("something");
        somethingElement.setAttribute("style","background-color:red");
        node.getParentNode().replaceChild(somethingElement,node);
        somethingElement.appendChild(node);
        NodeList nodeList = node.getChildNodes();
        for (int i = 0; i < nodeList.getLength(); i++) {
            paintAllNodes(nodeList.item(i));
        }
    }
}

This is my main content:

public static void main(String[] args) throws SAXException,IOException,ParserConfigurationException,TransformerException {

    DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
    Document document = docBuilder.parse(new File("document.xml"));
    paintAllNodes(document.getDocumentElement());

    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    DOMSource source = new DOMSource(document);
    StreamResult result = new StreamResult(System.out);
    transformer.transform(source,result);
}

I tested it with this XML:

<html>
    <head>
        <title>title</title>
    </head>
    <body>
    <h1>title</h1>
    <div>test</div>
    </body>
</html>

My main task is to print out this new XML, which seems to be what you want:

<?xml version="1.0" encoding="UTF-8"?><something style="background-color:red"><html>
    <something style="background-color:red"><head>
        <something style="background-color:red"><title>title</title></something>
    </head></something>
    <something style="background-color:red"><body>
    <something style="background-color:red"><h1>title</h1></something>
    <something style="background-color:red"><div>test</div></something>
    </body></something>
</html></something>

I hope this will help

The content of this article comes from the network collection of netizens. It is used as a learning reference. The copyright belongs to the original author.
THE END
分享
二维码
< <上一篇
下一篇>>