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mkyongmkyong
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jdom
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Lines changed: 187 additions & 1 deletion

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‎java-xml/pom.xml‎

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<maven.compiler.target>11</maven.compiler.target>
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<java.version>11</java.version>
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<junit.version>5.4.0</junit.version>
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<jdom2.version>2.0.6</jdom2.version>
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</properties>
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<dependencies>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.jdom</groupId>
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<artifactId>jdom2</artifactId>
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<version>${jdom2.version}</version>
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</dependency>
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</dependencies>
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<build>

‎java-xml/src/main/java/com/mkyong/xml/App.java‎

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public static void main(String[] args) {
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System.out.println("Welcome to Java XML");
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}
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}

‎java-xml/src/main/java/com/mkyong/xml/jdom/ReadXmlAlexaApiJDomParser.java‎

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package com.mkyong.xml.jdom;
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import org.jdom2.Document;
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import org.jdom2.Element;
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import org.jdom2.JDOMException;
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import org.jdom2.input.SAXBuilder;
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import java.io.IOException;
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import java.net.URL;
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import java.util.List;
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public class ReadXmlAlexaApiJDomParser {
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private static final String REMOTE_URL = "https://data.alexa.com/data?cli=10&url=mkyong.com";
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public static void main(String[] args) {
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try {
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SAXBuilder sax = new SAXBuilder();
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// XML is in a web-based location
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Document doc = sax.build(new URL(REMOTE_URL));
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Element rootNode = doc.getRootElement();
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List<Element> list = rootNode.getChildren("SD");
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for (Element target : list) {
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Element popularity = target.getChild("POPULARITY");
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String url = popularity.getAttributeValue("URL");
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String rank = popularity.getAttributeValue("TEXT");
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System.out.printf("URL : %s%n", url);
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System.out.printf("Alexa Rank : %s%n", rank);
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}
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} catch (IOException | JDOMException e) {
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e.printStackTrace();
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}
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}
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}

‎java-xml/src/main/java/com/mkyong/xml/jdom/ReadXmlJDomParser.java‎

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package com.mkyong.xml.jdom;
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import org.jdom2.Document;
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import org.jdom2.Element;
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import org.jdom2.JDOMException;
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import org.jdom2.input.SAXBuilder;
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import java.io.File;
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import java.io.IOException;
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import java.util.List;
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// https://mkyong.com/java/how-to-read-xml-file-in-java-jdom-example/
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public class ReadXmlJDomParser {
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private static final String FILENAME = "src/main/resources/staff.xml";
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// https://github.com/hunterhacker/jdom/wiki/JDOM2-A-Primer
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public static void main(String[] args) {
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try {
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SAXBuilder sax = new SAXBuilder();
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// XML is a local file
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Document doc = sax.build(new File(FILENAME));
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Element rootNode = doc.getRootElement();
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List<Element> list = rootNode.getChildren("staff");
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for (Element target : list) {
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String id = target.getAttributeValue("id");
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String name = target.getChildText("name");
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String role = target.getChildText("role");
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String salary = target.getChildText("salary");
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String currency = "";
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if (salary != null && salary.length() > 1) {
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// access attribute
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currency = target.getChild("salary").getAttributeValue("currency");
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}
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String bio = target.getChildText("bio");
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System.out.printf("Staff id : %s%n", id);
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System.out.printf("Name : %s%n", name);
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System.out.printf("Role : %s%n", role);
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System.out.printf("Salary [Currency] : %,.2f [%s]%n", Float.parseFloat(salary), currency);
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System.out.printf("Bio : %s%n%n", bio);
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}
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} catch (IOException | JDOMException e) {
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e.printStackTrace();
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}
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}
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}

‎java-xml/src/main/java/com/mkyong/xml/jdom/ReadXmlStringJDomParser.java‎

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package com.mkyong.xml.jdom;
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import org.jdom2.Document;
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import org.jdom2.Element;
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import org.jdom2.JDOMException;
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import org.jdom2.input.SAXBuilder;
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import java.io.IOException;
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import java.io.StringReader;
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public class ReadXmlStringJDomParser {
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public static void main(String[] args) {
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String XML = "<root><url>mkyong</url></root>";
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try {
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SAXBuilder sax = new SAXBuilder();
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// String that contains XML
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Document doc = sax.build(new StringReader(XML));
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Element rootNode = doc.getRootElement();
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System.out.println(rootNode.getChildText("url"));
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} catch (IOException | JDOMException e) {
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e.printStackTrace();
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}
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}
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}

‎java-xml/src/main/java/com/mkyong/xml/sax/CopyAndAddBomToXmlFile.java‎

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package com.mkyong.xml.sax;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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public class CopyAndAddBomToXmlFile {
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public static void main(String[] args) {
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Path src = Paths.get("src/main/resources/staff.xml");
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Path dest = Paths.get("src/main/resources/staff-bom.xml");
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writeBomFile(src, dest);
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}
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private static void writeBomFile(Path src, Path dest) {
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try (FileOutputStream fos = new FileOutputStream(dest.toFile())) {
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byte[] BOM = {(byte) 0xEF, (byte) 0xBB, (byte) 0xBF};
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fos.write(BOM);
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Files.copy(src, fos);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}

‎java-xml/src/main/resources/staff-bom.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<Company>
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<staff id="1001">
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<name>mkyong</name>
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<role>support</role>
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<salary currency="USD">5000</salary>
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<!-- for special characters like < &, need CDATA -->
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<bio><![CDATA[HTML tag <code>testing</code>]]></bio>
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</staff>
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<staff id="1002">
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<name>yflow</name>
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<role>admin</role>
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<salary currency="EUR">8000</salary>
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<bio><![CDATA[a & b]]></bio>
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</staff>
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</Company>

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