在Java中从XML字符串检索属性值

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

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();

String xmlString = "<root><element attribute=\"value\">content</element></root>";
Document document = builder.parse(new InputSource(new StringReader(xmlString)));

Element root = document.getDocumentElement();

Element element = (Element) root.getElementsByTagName("element").item(0);

String attributeValue = element.getAttribute("attribute");