清除XML文件，但仅删除某些行

Question

我正在尝试清除包含字符串“ s”的xml行。我已经实现了此方法，但它只删除了一半的行。

public void clearResults(String s) {
    try {
        File inputFile = new File("src/resources/config.xml");
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
        Document doc = dBuilder.parse(inputFile);
        doc.getDocumentElement().normalize();

        for(int i=0; i<doc.getElementsByTagName(s).getLength(); i++) {
            Element element = (Element) doc.getElementsByTagName(s).item(i);

            element.getParentNode().removeChild(element);

            Transformer transformer = TransformerFactory.newInstance().newTransformer();
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            StreamResult result = new StreamResult(new FileOutputStream(inputFile));
            DOMSource source = new DOMSource(doc);
            transformer.transform(source, result);
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

}