DomXmlUtils.java 文件源码

public static Iterator<Node> getNodeList(String exp, Element dom) throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expUserTask = xpath.compile(exp);
    final NodeList nodeList = (NodeList) expUserTask.evaluate(dom, XPathConstants.NODESET);

    return new Iterator<Node>() {
        private int index = 0;

        @Override
        public Node next() {
            return nodeList.item(index++);
        }

        @Override
        public boolean hasNext() {
            return (nodeList.getLength() - index) > 0;
        }
    };
}