How can i parse an XML file with HTML tags inside CDATA section?

Answer 1

Just access the CDATA as text content

Variant 1 (DOM):

    import java.io.BufferedInputStream;
    import java.io.FileInputStream;
    import java.io.InputStream;
    import javax.xml.parsers.DocumentBuilder;
    import javax.xml.parsers.DocumentBuilderFactory;
    import org.w3c.dom.Document;
    import org.w3c.dom.Node;
    import org.w3c.dom.NodeList;

public void getCDATAFromHardcodedPathWithDom() {
    String yourSampleFile = "/path/toYour/sample/file.xml";
    String cdataNode = "extendedinfo";
    try (InputStream in =
            new BufferedInputStream(new FileInputStream(yourSampleFile))) {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document doc = builder.parse(in);
        NodeList elements = doc.getElementsByTagName(cdataNode);
        for (int i = 0; i < elements.getLength(); i++) {
            Node e = elements.item(i);
            System.out.println(e.getTextContent());
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Variant 2 (stax):

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;

public void getCDATAFromHardcodedPathWithStax() {
    String yourSampleFile = "/path/toYour/sample/file.xml";
    String cdataNode = "extendedinfo";
    XMLStreamReader r = null;
    try (InputStream in =
            new BufferedInputStream(new FileInputStream(yourSampleFile));)        {
        XMLInputFactory factory = XMLInputFactory.newInstance();
        r = factory.createXMLStreamReader(in);
        while (r.hasNext()) {
            switch (r.getEventType()) {
            case XMLStreamConstants.START_ELEMENT:
                if (cdataNode.equals(r.getName().getLocalPart())) {
                    System.out.println(r.getElementText());
                }
                break;
            default:
                break;
            }
            r.next();
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (r != null) {
            try {
                r.close();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }
}

With /path/toYour/sample/file.xml

    Testcase: Init Testreport]]>


    58.675124Set_Temperature is set to 23
Set_Temperature = 23]]>

It will give you

An interesting alternative using JAXB is given here:
Retrieve value from CDATA
An example on how to extract just all CDATA is given here:
Unable to check CDATA in XML using XMLEventReader in Stax

                                                        

              
                
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Testcase: Init Testreport



58.675124
Set_Temperature is set to 23
Set_Temperature = 23