how to get tag name at xml

Question

above is my XMl...

how to get the name of the element tag like ReportDate, PeriodEndingDate, FileDate and so on?

List<String> stkCompFinaciallist = new ArrayList<String>();

        File fXmlFile = new File(filename);
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
        Document doc = dBuilder.parse(fXmlFile);

        // optional, but recommended
        // read this - http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work
        doc.getDocumentElement().normalize();

        out.println("Root element :" + doc.getDocumentElement().getNodeName());
        NodeList nList = doc.getDocumentElement().getElementsByTagName("BalanceSheetEntity");
        out.println("length=" + nList.getLength());

        for (int temp = 0; temp < nList.getLength(); temp++) {

            Node nNode = nList.item(temp);

            out.println("\nCurrent Element :" + nNode.getNodeName());
            //out.println("node name:"+ nNode.getNodeName());
            if (nNode.getNodeType() == Node.ELEMENT_NODE) {

                Element eElement = (Element) nNode;


            if (eElement.getElementsByTagName("ReportDate").getLength() > 0) {
                    stkCompFinaciallist.add(eElement.getElementsByTagName("ReportDate").item(0).getFirstChild().getNodeValue());
                    out.println("ReportDate : " + eElement.getElementsByTagName("ReportDate").item(0).getFirstChild().getNodeValue());
                } else {
                    stkCompFinaciallist.add("");
                }

                if (eElement.getElementsByTagName("PeriodEndingDate").getLength() > 0) {
                    stkCompFinaciallist.add(eElement.getElementsByTagName("PeriodEndingDate").item(0).getFirstChild().getNodeValue());
                    out.println("PeriodEndingDate : " + eElement.getElementsByTagName("PeriodEndingDate").item(0).getFirstChild().getNodeValue());



                } else {
                    stkCompFinaciallist.add("");
                }

                if (eElement.getElementsByTagName("FileDate").getLength() > 0) {
                    stkCompFinaciallist.add(eElement.getElementsByTagName("Start").item(0).getFirstChild().getNodeValue());
                    out.println("FileDate : " + eElement.getElementsByTagName("FileDate").item(0).getFirstChild().getNodeValue());
                } else {
                    stkCompFinaciallist.add("");
                }

Above Coding can get the Node Value. Cause the tag name is more than 200 tag, so i plan get the tag name first just using for loop to get the value. and this tag also have another purpose.

please kindly advice how to get the tag name? i only need the tag name of BalansheetEntity.

Thanks and best regards Sharon

Did you consider using JAXB ? https://docs.oracle.com/javase/tutorial/jaxb/intro/ — Mickael, Dec 12 '17 at 15:46

score 1 · Answer 1 · answered Dec 12 '17 at 15:42

1

can you use Xpath here. if your XML structure always contain tag - BalansheetEntity you can use XPAth to get all child nodes of BalansheetEntity tag.

Also it is better to use XSD to validate xml structure.

Regards Abdul

answered Dec 12 '17 at 15:42

Abdul Azeez

807
10
18

Thanks...I get the answer – Sharon Wong Dec 13 '17 at 04:29

how to get tag name at xml

1 Answers1