{"id":1767,"date":"2011-03-22T16:46:00","date_gmt":"2011-03-22T11:16:00","guid":{"rendered":"http:\/\/JitendraZaa.com\/blog\/?p=1767"},"modified":"2011-03-22T16:46:00","modified_gmt":"2011-03-22T11:16:00","slug":"xml-tree-viewer-using-sax-parser-in-java-with-jtreejfilechooser-component-of-swing","status":"publish","type":"post","link":"https:\/\/www.jitendrazaa.com\/blog\/java\/xml-tree-viewer-using-sax-parser-in-java-with-jtreejfilechooser-component-of-swing\/","title":{"rendered":"XML Tree Viewer using SAX Parser in JAVA with Jtree,JFileChooser component of Swing"},"content":{"rendered":"

I am going to create a utility application in JAVA for reading the XML document using SAX parser. The application will look like:<\/p>\n

\"XML<\/a>
XML Tree Viewer using SAX Parser in JAVA<\/figcaption><\/figure>\n

<\/p>\n

Input File :<\/p>\n

\n<?xml version="1.0" encoding="UTF-8" standalone="no"?>\n<Movies>\n\t<Movie Actor="Aamir Khan" Name="Lagaan" Type="BollyWood">\n\t\tThis is node description for Movie Lagaan\n\t<\/Movie>\n\t<Movie Actor="Aamir Khan" Name="Andaaz Apana Apna" Type="BollyWood" \/>\n\t<Movie Actor="Salman Khan" Name="Dabang" Type="BollyWood" \/>\n\t<Movie Actor="Salman Khan" Name="Wanted" Type="BollyWood" \/>\n\t<Movie Actor="AKshay Kumar" Name="Mujhse Shadi karoge" Type="BollyWood" \/>\n\t<Movies2011>\n\t\t<jan> Yamla Pagala Deewana <\/jan>\n\t<\/Movies2011>\n<\/Movies>\n<\/pre>\n
Code:<\/p>\n
package com.G2.SAX;\n\nimport java.awt.event.ActionEvent;\nimport java.awt.event.ActionListener;\nimport java.io.File;\n\nimport javax.swing.JButton;\nimport javax.swing.JFileChooser;\nimport javax.swing.JFrame;\nimport javax.swing.JLabel;\nimport javax.swing.JPanel;\nimport javax.swing.JScrollPane;\nimport javax.swing.JTextField;\nimport javax.swing.JTree;\nimport javax.swing.filechooser.FileFilter;\nimport javax.swing.filechooser.FileNameExtensionFilter;\nimport javax.swing.tree.DefaultMutableTreeNode;\nimport javax.swing.tree.DefaultTreeModel;\nimport javax.xml.parsers.SAXParser;\nimport javax.xml.parsers.SAXParserFactory;\n\nimport org.xml.sax.Attributes;\nimport org.xml.sax.SAXException;\nimport org.xml.sax.helpers.DefaultHandler;\n\npublic class XMLTreeViewer extends DefaultHandler {\n\n\tprivate JTree xmlJTree;\n\tDefaultTreeModel treeModel;\n\tint lineCounter;\n\tDefaultMutableTreeNode base = new DefaultMutableTreeNode("XML Viewer");\n\tstatic XMLTreeViewer treeViewer = null;\n\tJTextField txtFile = null;\n\n\t@Override\n\tpublic void startElement(String uri, String localName, String tagName, Attributes attr) throws SAXException {\n\n\t\tDefaultMutableTreeNode current = new DefaultMutableTreeNode(tagName);\n\n\t\tbase.add(current);\n\t\tbase = current;\n\n\t\tfor (int i = 0; i < attr.getLength(); i++) {\n\t\t\tDefaultMutableTreeNode currentAtt = new DefaultMutableTreeNode(attr.getLocalName(i) + " = "\n\t\t\t\t\t+ attr.getValue(i));\n\t\t\tbase.add(currentAtt);\n\t\t}\n\t}\n\n\tpublic void skippedEntity(String name) throws SAXException {\n\t\tSystem.out.println("Skipped Entity: '" + name + "'");\n\t}\n\n\t@Override\n\tpublic void startDocument() throws SAXException {\n\t\tsuper.startDocument();\n\t\t base = new DefaultMutableTreeNode("XML Viewer");\n\t\t((DefaultTreeModel) xmlJTree.getModel()).setRoot(base);\n\t}\n\n\tpublic void characters(char[] ch, int start, int length) throws SAXException {\n\n\t\tString s = new String(ch, start, length).trim();\n\t\tif (!s.equals("")) {\n\t\t\tDefaultMutableTreeNode current = new DefaultMutableTreeNode("Descrioption : " + s);\n\t\t\tbase.add(current);\n\n\t\t}\n\t}\n\n\tpublic void endElement(String namespaceURI, String localName, String qName) throws SAXException {\n\n\t\tbase = (DefaultMutableTreeNode) base.getParent();\n\t}\n\n\tpublic static void main(String[] args) {\n\t\ttreeViewer = new XMLTreeViewer();\n\t\t\/\/ treeViewer.xmlSetUp();\n\t\ttreeViewer.createUI();\n\n\t}\n\n\t@Override\n\tpublic void endDocument() throws SAXException {\n\t\t\/\/ Refresh JTree\n\t\t((DefaultTreeModel) xmlJTree.getModel()).reload();\n\t\texpandAll(xmlJTree);\n\t}\n\n\tpublic void expandAll(JTree tree) {\n\t\tint row = 0;\n\t\twhile (row < tree.getRowCount()) {\n\t\t\ttree.expandRow(row);\n\t\t\trow++;\n\t\t}\n\t}\n\n\tpublic void xmlSetUp(File xmlFile) {\n\t\ttry {\n\t\t\tSAXParserFactory fact = SAXParserFactory.newInstance();\n\t\t\tSAXParser parser = fact.newSAXParser();\n\t\t\tparser.parse(xmlFile, this);\n\n\t\t} catch (Exception e) {\n\n\t\t}\n\t}\n\n\tpublic void createUI() {\n\n\t\ttreeModel = new DefaultTreeModel(base);\n\t\txmlJTree = new JTree(treeModel);\n\t\tJScrollPane scrollPane = new JScrollPane(xmlJTree);\n\n\t\tJFrame windows = new JFrame();\n\n\t\twindows.setTitle("XML Tree Viewer using SAX Parser in JAVA");\n\n\t\tJPanel pnl = new JPanel();\n\t\tpnl.setLayout(null);\n\t\tJLabel lbl = new JLabel("File :");\n\t\ttxtFile = new JTextField("Selected File Name Here");\n\t\tJButton btn = new JButton("Select File");\n\n\t\tbtn.addActionListener(new ActionListener() {\n\t\t\t@Override\n\t\t\tpublic void actionPerformed(ActionEvent evt) {\n\t\t\t\tJFileChooser fileopen = new JFileChooser();\n\t\t\t\tFileFilter filter = new FileNameExtensionFilter("xml files", "xml");\n\t\t\t\tfileopen.addChoosableFileFilter(filter);\n\n\t\t\t\tint ret = fileopen.showDialog(null, "Open file");\n\n\t\t\t\tif (ret == JFileChooser.APPROVE_OPTION) {\n\t\t\t\t\tFile file = fileopen.getSelectedFile();\n\t\t\t\t\ttxtFile.setText(file.getPath() + File.separator + file.getName());\n\t\t\t\t\txmlSetUp(file);\n\t\t\t\t}\n\n\t\t\t}\n\t\t});\n\t\tlbl.setBounds(0, 0, 100, 30);\n\t\ttxtFile.setBounds(110, 0, 250, 30);\n\t\tbtn.setBounds(360, 0, 100, 30);\n\t\tscrollPane.setBounds(0, 50, 500, 600);\n\n\t\tpnl.add(lbl);\n\n\t\tpnl.add(txtFile);\n\t\tpnl.add(btn);\n\n\t\tpnl.add(scrollPane);\n\n\t\twindows.add(pnl);\n\t\twindows.setSize(500, 700);\n\t\twindows.setVisible(true);\n\t\twindows.setDefaultCloseOperation( windows.EXIT_ON_CLOSE);\n\t}\n\n}\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
XML Tree Viewer using SAX Parser in JAVA with Jtree,JFileChooser component of Swing, How to refresh Jtree when content changes , Expand or collapse JTree<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"jz_research_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[3],"tags":[192,227],"class_list":["post-1767","post","type-post","status-publish","format-standard","hentry","category-java","tag-swing","tag-xml"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1774,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/difference-between-sax-and-dom-parsers\/","url_meta":{"origin":1767,"position":0},"title":"Difference between SAX and DOM Parsers","author":"Jitendra","date":"March 22, 2011","format":false,"excerpt":"What is the difference between SAX And DOM Parsers","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1756,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/searching-xml-file-using-dom-parser-of-jaxp\/","url_meta":{"origin":1767,"position":1},"title":"Searching XML File using DOM Parser of JAXP","author":"Jitendra","date":"March 22, 2011","format":false,"excerpt":"Example of Searching XML File using DOM Parser of JAXP","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1753,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/traverse-xml-file-using-dom-parser-of-jaxp\/","url_meta":{"origin":1767,"position":2},"title":"Traverse XML file using DOM Parser of JAXP","author":"Jitendra","date":"March 22, 2011","format":false,"excerpt":"Example of Traverse XML file using DOM Parser of JAXP","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1750,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/create-xml-file-using-jaxp-and-transformation-apis\/","url_meta":{"origin":1767,"position":3},"title":"Create XML File using DOM Parser of JAXP and Transformation APIs","author":"Jitendra","date":"March 22, 2011","format":false,"excerpt":"Example of Creating XML File using JAXP and Transformation APIs","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2120,"url":"https:\/\/www.jitendrazaa.com\/blog\/java\/validate-xml-schema-using-dom-parser-and-sax-parser-in-java-using-swing\/","url_meta":{"origin":1767,"position":4},"title":"Validate XML Schema Using DOM Parser and SAX Parser in JAVA Using Swing","author":"Jitendra","date":"May 13, 2011","format":false,"excerpt":"Validate XML Schema Using DOM Parser and SAX Parser in JAVA Using Swing","rel":"","context":"In "JAVA"","block_context":{"text":"JAVA","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/java\/"},"img":{"alt_text":"Input Screen - 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