java 创建w3c dom_Java HTML/XML - 如何使用DOM创建XML中的新元素

import java.io.File;

import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.Node;

public class Main {

public static void sendXml(String result, int operationN) throws Exception{

String filepath = "file.xml";

DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();

DocumentBuilder docBuilder = docFactory.newDocumentBuilder();

Document doc = docBuilder.parse(filepath);

Node tonode = doc.getElementsByTagName("command").item(0);

Element res = doc.createElement("result");

res.setTextContent(result);

tonode.appendChild(res);

TransformerFactory transformerFactory = TransformerFactory.newInstance();

Transformer transformer = transformerFactory.newTransformer();

DOMSource source = new DOMSource(doc);

StreamResult result1 = new StreamResult(new File("file2.xml"));

StreamResult result3 = new StreamResult(System.out);

transformer.transform(source, result1);

}

public static void main(String argv[]) throws Exception {

sendXml("hitest", 1);

}

}