试图在XML字符串Java中获取标签的值

发布于 2025-01-29 10:52:27 字数 1036 浏览 3 评论 0原文

我有一个存储在StringBuilder中的XML字符串。我的xml看起来像

它，看起来像看起来

我想在记录标签中访问我想要的任何标签值，我所拥有的是：

StringBuilder informationString = new StringBuilder();
            Scanner scanner = new Scanner(url.openStream());

            while (scanner.hasNext()) {
                informationString.append(scanner.nextLine());
            }
            //Close the scanner
            scanner.close();

            System.out.println(informationString);

            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(new InputSource(new StringReader(String.valueOf(informationString))));
            Element rootElement = document.getDocumentElement();

但是我不知道该怎么办，并且非常迷失感谢您的帮助

原文

I have an xml string stored in a StringBuilder.
My xml looks like this

couldn't write it in code so here's a screenshot

inside the report tag, it looks like
what it looks like

I would like to get access to any tag value I want in the record tag, what I have is :

StringBuilder informationString = new StringBuilder();
            Scanner scanner = new Scanner(url.openStream());

            while (scanner.hasNext()) {
                informationString.append(scanner.nextLine());
            }
            //Close the scanner
            scanner.close();

            System.out.println(informationString);

            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(new InputSource(new StringReader(String.valueOf(informationString))));
            Element rootElement = document.getDocumentElement();

But I do not know what to do with this and am very lost
Thanks by advance for helping

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海拔太高太耀眼 2025-02-05 10:52:27

通常，您可以使用以下例程，

Element documentElement=....
NodeList elmList=documentElement.getElementsByTagName("elementName");
Element e=(Element)elmList.itm(x);//putting it in a loop would do

可以继续使用以上来递归获取元素。

虽然一种更好的方法是使用XPath（ saxon Elastimaton，尽管还有更多的库可供选择）

In general, you can use the below routine

Element documentElement=....
NodeList elmList=documentElement.getElementsByTagName("elementName");
Element e=(Element)elmList.itm(x);//putting it in a loop would do

You could keep using the above to get elements recursively.

Though a better approach would be to use XPath (Saxon has a decent XPath implementaton, though there are many more libraries to choose from)

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