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浠ヤ笅鏄竴涓娇鐢↗ava鎵撳紑搴旂敤绋嬪簭骞舵墽琛孹Path鏌ヨ鐨勭ず渚嬶細

1. 瀵煎叆鐩稿叧鐨凧ava搴擄細

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;

2. 鎵撳紑XML鏂囨。锛?/li>

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(new File("path/to/xml/file.xml"));

3. 鍒涘缓XPath瀵硅薄锛?/li>

XPathFactory xPathfactory = XPathFactory.newInstance();
XPath xpath = xPathfactory.newXPath();

4. 缂栧啓XPath琛ㄨ揪寮忥細

String expression = "//book[price>10]";

5. 缂栬瘧XPath琛ㄨ揪寮忥細

XPathExpression xpathExpr = xpath.compile(expression);

6. 鎵цXPath鏌ヨ锛?/li>

NodeList nodeList = (NodeList) xpathExpr.evaluate(document, XPathConstants.NODESET);

7. 澶勭悊鏌ヨ缁撴灉锛?/li>

for (int i = 0; i < nodeList.getLength(); i++) {
    System.out.println(nodeList.item(i).getTextContent());
}

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