Lettisha Saroj

I could finally fix this up by using XPath and I had to traverse the node in reverse order when deleting. Below is the final code that worked

public static void main(String[] args) { File fXmlSubFile = new File("Sub.xml"); File fXmlOriginalFile = new File("Original.xml"); File fDestFile = new File("myfile.xml"); DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder dBuilder; FileChannel source = null; FileChannel destination = null; XPath xPath = XPathFactory.newInstance().newXPath(); try{ if (!fDestFile.exists()) { fDestFile.createNewFile(); } source = new FileInputStream(fXmlOriginalFile).getChannel(); destination = new FileOutputStream(fDestFile).getChannel(); if (destination != null && source != null) { destination.transferFrom(source, 0, source.size()); } if (source != null) { source.close(); } if (destination != null) { destination.close(); } dBuilder = dbFactory.newDocumentBuilder(); Document oSubDoc = dBuilder.parse(fXmlSubFile); Document oDestDoc = dBuilder.parse(fDestFile); oSubDoc.getDocumentElement().normalize(); oDestDoc.getDocumentElement().normalize(); String sDestExpression = "/DeploymentDescriptors/NameValuePairs"; String sSubExpression = "/NameValuePairs"; NodeList nodeDestList = (NodeList) xPath.compile(sDestExpression).evaluate(oDestDoc, XPathConstants.NODESET); NodeList nodeSubList = (NodeList) xPath.compile(sSubExpression).evaluate(oSubDoc, XPathConstants.NODESET); for (int i = nodeDestList.getLength()-1; i >=0 ; i--) { Node oDestNode = nodeDestList.item(i); if (oDestNode.getNodeType() == Node.ELEMENT_NODE) { Element oDestElement = (Element) oDestNode; for (int j =0; j<nodeSubList.getLength(); j++) { Node oSubNode = nodeSubList.item(j); if (oSubNode.getNodeType() == Node.ELEMENT_NODE) { Element oSubElement = (Element) oSubNode; if(oDestElement.getElementsByTagName("name").item(0).getTextContent().equals(oSubElement.getElementsByTagName("name").item(0).getTextContent())){ oDestNode.getParentNode().removeChild(oDestNode); } } } } } Source src = new DOMSource(oDestDoc); Result result = new StreamResult(fDestFile); Transformer transformer = null; transformer = TransformerFactory.newInstance().newTransformer(); // Transform your XML document (i.e. save changes to file) transformer.transform(src, result); }catch(Exception ex){ System.out.println("error:"+ex.getMessage()); ex.printStackTrace(); } } >

Hello Bill,

I have tried both the statements given below but I am still getting the same error. My requirement is to compare 2 xml files. Remove the duplicates from the original file and create a new xml file with the changes.

oDestchildNode.getParentNode().removeChild(oDestchildNode); //Not Working
oDoc3.getDocumentElement().removeChild(oDestchildNode);

Later I have tried with Element. I do not get any error when tried with Element but the node doesnt get deleted in this case.

I have been searching for a solution since few days but no luck.

I have an XML file and I need to delete a specific node. The node to be deleted will be defined dynamically based on the logic. I have been searching in internet for a solution but couldn't delete my node still. am getting error - (NOT_FOUND_ERR: An attempt is made to reference a node in a context where it does not exist)Below is a sample XML File. I need to delete the node -<NameValuePairs> which has <name>Local Variables</name>. Below is my sample XML & Java Code

<?xml version="1.0" encoding="UTF-8"?> -<DeploymentDescriptors xmlns="http://www.tibco.com/xmlns/dd"> <name>Test</name> <version>1</version> -<DeploymentDescriptorFactory> <name>RepoInstance</name> </DeploymentDescriptorFactory> -<DeploymentDescriptorFactory> <name>NameValuePairs</name> </DeploymentDescriptorFactory> -<NameValuePairs> <name>Global Variables</name> -<NameValuePair> <name>Connections1</name> <value>7222</value> <requiresConfiguration>true</requiresConfiguration> </NameValuePair> -<NameValuePair> <name>Connections2</name> <value>7222</value> <requiresConfiguration>true</requiresConfiguration> </NameValuePair> <NameValuePairs> -<NameValuePairs> <name>Local Variables</name> -<NameValuePair> <name>Connections3</name> <value>8222</value> <requiresConfiguration>true</requiresConfiguration> </NameValuePair> -<NameValuePair> <name>Connections3</name> <value>8222</value> <requiresConfiguration>true</requiresConfiguration> </NameValuePair> <NameValuePairs> </DeploymentDescriptors>


File fDestFile = new File("myfile.xml"); DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder dBuilder = dbFactory.newDocumentBuilder(); Document oDoc3 = dBuilder.parse(fDestFile); NodeList oDestFlowList = oDoc3.getElementsByTagName("NameValuePairs"); for (int m = 0; m < oDestFlowList.getLength(); m++) { NodeList oDestchildList = oDestFlowList.item(m).getChildNodes(); for (int n = 0; n < oDestchildList.getLength(); n++) { Node oDestchildNode = oDestchildList.item(n); if ("name".equals(oDestchildNode.getNodeName())) { //oDestchildNode.getParentNode().removeChild(oDestchildNode); //Not Working //oDoc3.getDocumentElement().removeChild(oDestchildNode); //Not Working } } } }

we are working on centralized server using VSS (Visual Source Safe). we are connecting to the server through our individual systems. our project is in the server. and we have a copy of that project in our invidual systems. so when am uploading a picture, it is storing in my local project and the path is getting stored at the backend. but i want to store the picture in our original project which is on the server. and build is basically where a copy of all your jsps and actions are stored. can you help me....

I am uploading an image, saving it in Build of my project (c:\myproject\build\images) folder and saving the path in the backend (MySQL) using struts action. But I want to save the uploaded image in the build of the Server. Can anyone help me??