与元素类型“脚本”关联的属性名称“异步”后必须带有“ =”字符

Question

I am try to parse XML from existing URL.

URL address: http://www.sozcu.com.tr/2016/yazarlar/ugur-dundar/rss

try {
        URL url = new URL(urlAddress);
        DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder = dFactory.newDocumentBuilder();
        InputSource ıo = new InputSource(url.openStream());
        Document document = (Document) dBuilder.parse(ıo);
        document.getDocumentElement().normalize();

        NodeList nodeList = document.getElementsByTagName("item");
        for (int i = 0; i < nodeList.getLength(); i++) {
            Node node = nodeList.item(i);
            Element mainElement = (Element) node;
            String link = getXMLAttributeValue("link", mainElement);
            String title = getXMLAttributeValue("title", mainElement);
            String desc = getXMLAttributeValue("desc",mainElement);

            sozcuArticle.add(new Sozcu(link, title, desc));
        }
    } catch (ParserConfigurationException | IOException | SAXException ex) {
        System.out.println(ex.getMessage());
    }

Also my getXMLAttributeValue method

public String getXMLAttributeValue(String tag, Element element) {
        NodeList nodeElement = element.getElementsByTagName(tag);
        Element Element = (Element) nodeElement.item(0);
        return Element.getChildNodes().item(0).getNodeValue();
    }

When I run the program.I am getting exception.

[Fatal Error] :51:119: Attribute name "async" associated with an element type "script" must be followed by the ' = ' character.
Attribute name "async" associated with an element type "script" must be followed by the ' = ' character.
[Fatal Error] :5:409: Element type "n.length" must be followed by either attribute specifications, ">" or "/>".
Element type "n.length" must be followed by either attribute specifications, ">" or "/>".

I also search it in google but I can't find any solution.How can I fix this problem.

Thanks.

Answer 1

They block or redirect clients that use default java user agent properties(something like: Java/1.8.0_71). Add your own user agent and it works just fine:

DocumentBuilder dBuilder = dFactory.newDocumentBuilder();
URLConnection uc = url.openConnection();
uc.setRequestProperty("User-Agent", "Karayel's rss reader");
Document document = (Document) dBuilder.parse(uc.getInputStream());

Parsing feeds manually is tedious and error prone(your getXMLAttributeValue method throws NullPointerExceptions). I suggest you use something like rometools instead.