Java解析XML文件解决方案

1. DOM解析器
特点：将整个XML文档加载到内存中形成树状结构，适合小型XML文件

java
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;

// 读取XML文件
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse("file.xml");

// 获取根元素
Element root = document.getDocumentElement();

// 获取特定节点
NodeList nodeList = root.getElementsByTagName("nodeName");
for (int i = 0; i < nodeList.getLength(); i++) {
    Node node = nodeList.item(i);
    if (node.getNodeType() == Node.ELEMENT_NODE) {
        Element element = (Element) node;
        Strin