java - 尝试获取和解析股票价格时连接超时

Question

我正在尝试获取股票的最新股价。作为示例使用的 URL 是

String stockURL=http://www.google.com/ig/api?stock=ADSL.

我可以在我的浏览器中打开这个链接。为了解析执行 URL 后得到的文档，我编写了以下代码。

public static void main(String[] args) {
    URL url;
    try {
        url = new URL(stockUrl);
        GettingCurrentStockPrice gettingCurrentStockPrice = new GettingCurrentStockPrice();
        gettingCurrentStockPrice.readDoc(gettingCurrentStockPrice
                .parse(url));
    } catch (MalformedURLException e) {
        System.out.println("Encountered MalformedURLException:" + e);

    } catch (DocumentException e) {
        System.out.println("Encountered DocumentException:" + e);
    }

}

private Document parse(URL url) throws DocumentException {
    SAXReader reader = new SAXReader();
    Document document = reader.read(url);
    return document;
}

private void readDoc(Document document) {
    Element root = document.getRootElement();

    // iterate through child elements of root
    for (Iterator<Element> i = root.elementIterator(); i.hasNext();) {
        Element element = (Element) i.next();
        System.out.println(element);
    }

    for (Iterator i = root.elementIterator("company data"); i.hasNext();) {
        Element compName = (Element) i.next();
        System.out.println("compName-->" + compName);
    }

}

在运行程序时，我以，

Encountered DocumentException:org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect.

为什么无法打开给定的 URL？

更新：问题来parse()了render.read(url);。