Java：在 E4X 中解析 XML 的方法

Java中使用E4X解析XML的方法

java
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
public class XMLParser {
    public static void main(String[] args) {
        try {
            // 创建一个XML解析器工厂
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            // 创建一个XML解析器
            DocumentBuilder builder = factory.newDocumentBuilder();
            // 解析XML文档，返回一个Document对象
            Document document = builder.parse("example.xml");
            // 对解析后的XML文档进行操作
            // ...
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

java
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
public class XMLParser {
    public static void main(String[] args) {
        try {
            // 创建一个XML解析器工厂
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            // 创建一个XML解析器
            DocumentBuilder builder = factory.newDocumentBuilder();
            // 解析XML文档，返回一个Document对象
            Document document = builder.parse("example.xml");
            // 使用E4X访问XML数据
            NodeList nodeList = (NodeList) document.evaluate("//book", document, XPathConstants.NODESET);
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                String title = (String) node.evaluate("title", node, XPathConstants.STRING);
                String author = (String) node.evaluate("author", node, XPathConstants.STRING);
                System.out.println("Title: " + title);
                System.out.println("Author: " + author);
                System.out.println();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}