Parsing xml stored in string

Question

I have an string encoded in xml format. So when I print it to console it will come out looking like an xml file. What I want to do is read values from this string now using java with DOM or SAX library. But I don't know how to do it because my string is not stored in a file.

<?xml version="1.0" encoding="UTF-8"?>
<ADT_A01 xmlns="urn:hl7-org:v2xml">
    <MSH>
        <MSH.1>|</MSH.1>
        <MSH.2>^~\&amp;</MSH.2>
        <MSH.3>
            <HD.1>HIS</HD.1>
        </MSH.3>
        <MSH.4>
            <HD.1>RIH</HD.1>
        </MSH.4>
        <MSH.5>
            <HD.1>EKG</HD.1>
        </MSH.5>
        <MSH.6>
            <HD.1>EKG</HD.1>
        </MSH.6>
        <MSH.7>199904140038</MSH.7>
        <MSH.9>
            <MSG.1>ADT</MSG.1>
            <MSG.2>A01</MSG.2>
        </MSH.9>
        <MSH.11>
            <PT.1>P</PT.1>
        </MSH.11>
        <MSH.12>
            <VID.1>2.6</VID.1>
        </MSH.12>
    </MSH>
    <PID>
        <PID.1>1</PID.1>
        <PID.3>
            <CX.1>1478895</CX.1>
            <CX.2>4</CX.2>
            <CX.3>M10</CX.3>
            <CX.4>
                <HD.1>PA</HD.1>
            </CX.4>
        </PID.3>
        <PID.5>
            <XPN.1>
                <FN.1>XTEST</FN.1>
            </XPN.1>
            <XPN.2>PATIENT</XPN.2>
        </PID.5>
        <PID.7>19591123</PID.7>
        <PID.8> F</PID.8>
    </PID>
</ADT_A01>

stackoverflow.com/questions/1219596/…, also use for prettyprint/format as keywords to find more results — Christophe Roussy
– Christophe Roussy, Commented Feb 11, 2013 at 15:43
can you post your xml and what values do you want to get out of it? if you can sample input and expected result would be nice — justMe
– justMe, Commented Feb 11, 2013 at 15:48
How would I go about getting the root node and just the text called ADT_A01 (won't always be the same). When I try to get it I always get the tage [#text:] — zms6445
– zms6445, Commented Feb 11, 2013 at 15:59

Marc Baumbach · Accepted Answer · 2013-02-11 15:45:41Z

2

For DOM, one option is to use an InputSource:

String str = "<xml>...</xml>";
DocumentBuilder builder = DocumentBuilderFactory.newDocumentBuilder();
Document document = builder.parse(new InputSource(new StringReader(str)));

You can use a similar strategy with SAX, since it supports InputSource as well.

answered Feb 11, 2013 at 15:45

Marc Baumbach

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2 Comments

zms6445 Over a year ago

Thanks. I have this root node <ADT_A01 xmlns="urn:hl7-org:v2xml"> </ADT_A01> Is there any way to just get the text ADT_A01 (it will not always be called ADT_A01)

Marc Baumbach Over a year ago

If you're using the DOM, you can use getDocumentElement() on the Document object to get the root element and then on that returned Element object you can call getTagName() or getLocalName() if you want a non-namespaced name.

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