使用XPATH和JAVA将XML值存储为Map

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;
import java.util.HashMap;
import java.util.Map;

public class XMLToMap {
    public static void main(String[] args) {
        try {
            // 加载XML文件
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document doc = builder.parse("path/to/xml/file.xml");

            // 创建XPath对象
            XPathFactory xPathfactory = XPathFactory.newInstance();
            XPath xpath = xPathfactory.newXPath();

            // 编写XPath表达式
            XPathExpression expr = xpath.compile("//root/*");

            // 执行XPath表达式并获取结果
            NodeList nodeList = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);

            // 将XML值存储为Map
            Map<String, String> xmlMap = new HashMap<>();
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                String key = node.getNodeName();
                String value = node.getTextContent();
                xmlMap.put(key, value);
            }

            // 打印Map内容
            for (Map.Entry<String, String> entry : xmlMap.entrySet()) {
                System.out.println(entry.getKey() + ": " + entry.getValue());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}