Utilities.java 文件源码

public static List<String> runXPathQuery(File parsedFile, String xpathExpr) throws Exception{
    List<String> result = new ArrayList<String>();
    XPath xpath = XPathFactory.newInstance().newXPath();
    xpath.setNamespaceContext(getNamespaceContext());

    InputSource inputSource = new InputSource(new FileInputStream(parsedFile));
    NodeList nodes = (NodeList) xpath.evaluate(xpathExpr, inputSource, XPathConstants.NODESET);
    if((nodes != null) && (nodes.getLength() > 0)){
        for(int i=0; i<nodes.getLength();i++){
            Node node = nodes.item(i);
            result.add(node.getNodeValue());
        }
    }
    return result;
}