Home/ Questions/Q 6118247
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-23T15:24:51+00:00

i would like modify text of xml tag value i have used an xml

  • 0

i would like modify text of xml tag value i have used an xml as follows

  <note>
       <to>Tove</to> 
       <from>Jani</from> 
       <heading>Reminder</heading> 
       <body>Don't forget me this weekend!</body> 
 </note>

here i would like to change the from name Jani as prasad.how can i chage that by using java code

i have written a java code as follows

 try{
     DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
     DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
     Document doc = docBuilder.parse(new File("/mnt/sdcard/one.xml"));

    //Get the staff element by tag name directly
     Node nodes = doc.getElementsByTagName("note").item(0);
    //loop the staff child node
     NodeList list = nodes.getChildNodes();

     for (int i =0; i<list.getLength();i++){
         Node node = list.item(i);

         //get the salary element, and update the value
         if("from".equals(nodes.getNodeName())){
             node.setNodeValue("prasad");

             TransformerFactory factory = TransformerFactory.newInstance();
             Transformer transformer = factory.newTransformer();

             DOMSource source = new DOMSource(doc);
             StreamResult result = new StreamResult(new File("/mnt/sdcard/one.xml"));
             transformer.transform(source, result);


         }
     }

}
    catch (Exception e) {
        e.printStackTrace();
    }
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    There is problem in your code: “Jani” is a text node with parent element node “from”. So you should change value of the text node. 

    ...
     for (int i =0; i<list.getLength();i++) {
         Node node = list.item(i);

         //get the salary element, and update the value
         if("from".equals(node.getNodeName())){
             Text text = (Text) ((Element) node).getChildNodes().item(0);
             text.setNodeValue("prasad");
         }
     }

     TransformerFactory factory = TransformerFactory.newInstance();
     Transformer transformer = factory.newTransformer();

     DOMSource source = new DOMSource(doc);
     StreamResult result = new StreamResult(new File("/mnt/sdcard/one.xml"));
     transformer.transform(source, result);
...

    And I think RegExp would be much easier for this task

    "your xml as string".replaceAll("<from>.*?</from>", "<from>prasad</from>");
    • 0