问我正在尝试用示例代码在android.Help me的在线XML文件中检索span类中的值

EN

try {
     URL url = new URL("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml");
     URLConnection conn = url.openConnection();

     DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
     DocumentBuilder builder = factory.newDocumentBuilder();
     Document doc = builder.parse(conn.getInputStream());

     NodeList nodes = doc.getElementsByTagName("Cube");

     Element element = (Element) nodes.item(0);
     NodeList title = element.getElementsByTagName("Cube");
     Element line = (Element) title.item(0);
     Toast.makeText(this, "USD " + line.getTextContent().toString(), Toast.LENGTH_SHORT).show();
} catch (Exception e) {
     e.printStackTrace();
}