How to update nodes in xml

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Update the instance code of the node to xml

/ * System.out.println ("2323"); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance (); DocumentBuilder docbuilder = factory.newDocumentBuilder (); Document parse = docbuilder.parse (new File ("src/ProdQuery.xml")); / / Element createElement2 = parse.createElement (""); Element createElement = parse.createElement ("products"); Node item2 = parse.getChildNodes (). Item (parse.getChildNodes (). GetLength ()-1); for (String item: map.keySet ()) {/ / loop added to productsSystem.out.println ("tianjia1") Element clidren = parse.createElement ("product"); Attr createAttribute = parse.createAttribute ("name"); createAttribute.setNodeValue (item); Attr createAttribute2 = parse.createAttribute ("value"); createAttribute2.setNodeValue (map.get (item)); clidren.setAttributeNode (createAttribute); clidren.setAttributeNode (createAttribute2); createElement.appendChild (clidren);} / / add products to the root directory item2.appendChild (createElement); / / create an TransformerFactory object TransformerFactory tFactory = TransformerFactory.newInstance (); / / get an Operand Transformer transformer = tFactory.newTransformer () / / Settings, this is the code transformer.setOutputProperty (OutputKeys.ENCODING, "UTF-8"); / / DOMSource source = new DOMSource (parse); System.out.println ("change file"); StreamResult result = new StreamResult (new File ("src/ProdQuery.xml")); / / wrap xml files to transformer.setOutputProperty (OutputKeys.INDENT, "yes"); transformer.setOutputProperty ("{http://xml.apache.org/xslt}indent-amount"," 4 "); transformer.transform (source, result) * / above are all the contents of the article "how to update nodes in xml". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!