CODEWITHSUNDEEP
javaxmlxml-parsing
Uvais Ibrahim
Uvais Ibrahim

Reputation: 741

Java code to insert new elements to inner child nodes

I have an XML document as given below.

<rootElement>
    <fisrtElement>
        <firstElementChild>
            <child1>A</child1>
            <child2>B</child2>
        </firstElementChild>
    </fisrtElement>
</rootElement>

Now I need to add a child node, <child3>C</child3>, into this XML document so that my final XML document will look like below.

<rootElement>
    <fisrtElement>
        <firstElementChild>
            <child1>A</child1>
            <child2>B</child2>
            <child3>C</child3>
        </firstElementChild>
    </fisrtElement>
</rootElement>

I need a Java code for this. I have searched google and now I know how to add elements to root element using DocumentBuilderFactory. But I don't how to do it for inner nodes as I given above. Please advice.

Edit

I have tried the below snippent for adding new element.

DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new File("./sample.xml"));

Element itemNode = doc.createElement("child3");
itemNode.appendChild(doc.createTextNode("C"));
Node channelNode = doc.getElementsByTagName("channel").item(0);
channelNode.appendChild(itemNode);

And the output is something like below.

<rootElement>
    <fisrtElement>
        <firstElementChild>
            <child1>A</child1>
            <child2>B</child2>
            <child3>c</child3>
        </firstElementChild>
    </fisrtElement>
</rootElement>

and when I ran the code again with the modification given below,

Element itemNode = doc.createElement("child4");
itemNode.appendChild(doc.createTextNode("D"));

The third child node <child3>C</child3> is getting replaced with the fourth child <child4>D</child4>. What I need is incrementally adding child nodes for <firstElementChild>. What I am missing here. Please give an advice. Thanks in advance.

Upvotes: 0

Views: 2565

Answers (1)

Mickael
Mickael

Reputation: 4558

You should use this method on your firstElementChild node :

Upvotes: 1

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