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POConvert .XML to HashMap
 

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    <p>I have .xml file like this. i want convert this file to HashMap and reverse in Java. Could you please tell me how can i convert it to HashMap file? Thank you ...</p> <h2>This is the .xml file:</h2> <pre><code>&lt;RelationShipTypes&gt; &lt;RelationShipType key="1" name="Organization Unit"/&gt; &lt;RelationShipType key="2" name="Employee"/&gt; &lt;RelationShipType key="3" name="Customer"/&gt; &lt;RelationShipType key="4" name="Supplier"/&gt; &lt;RelationShipType key="5" name="Agency"/&gt; &lt;RelationShipType key="6" name="Partner"/&gt; &lt;RelationShipType key="7" name="SALES AGENT"/&gt; &lt;RelationShipType key="8" name="End User"/&gt; &lt;RelationShipType key="9" name="Other"/&gt; &lt;/RelationShipTypes&gt; </code></pre> <h2>This is the code:</h2> <pre><code> public static Map&lt;String, String&gt; convertNodesFromXml(String xml) throws SAXException, IOException, ParserConfigurationException { try { InputStream is = new ByteArrayInputStream(xml.getBytes()); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); dbf.setNamespaceAware(true); DocumentBuilder db = dbf.newDocumentBuilder(); Document document = db.parse(is); return createMap(document.getDocumentElement()); } catch (SAXException ex) { Logger.getLogger(BaseDataLoader.class.getName()).log(Level.SEVERE, null, ex); throw ex; } catch (IOException ex) { Logger.getLogger(BaseDataLoader.class.getName()).log(Level.SEVERE, null, ex); throw ex; } catch (ParserConfigurationException ex) { Logger.getLogger(BaseDataLoader.class.getName()).log(Level.SEVERE, null, ex); throw ex; } } public static Map&lt;String, String&gt; createMap(Node node) { Map&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); NodeList nodeList = node.getChildNodes(); for (int i = 0; i &lt; nodeList.getLength(); i++) { Node currentNode = nodeList.item(i); if (currentNode.hasAttributes()) { for (int j = 0; j &lt; currentNode.getAttributes().getLength(); j++) { Node item = currentNode.getAttributes().item(i); map.put(item.getNodeName(), item.getTextContent()); } } if (node.getFirstChild() != null &amp;&amp; node.getFirstChild().getNodeType() == Node.ELEMENT_NODE) { map.putAll(createMap(currentNode)); } else if (node.getFirstChild().getNodeType() == Node.TEXT_NODE) { map.put(node.getLocalName(), node.getTextContent()); } } return map; } </code></pre>
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