An introduction to JAXB

jaxb/src/main/java/com/baeldung/jaxb/Book.java

@@ -0,0 +1,58 @@
+package com.baeldung.jaxb;
+
+import java.util.Date;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+import javax.xml.bind.annotation.XmlType;
+
+@XmlRootElement(name = "book")
+@XmlType(propOrder = { "id", "name", "date" })
+public class Book {
+    private Long id;
+    private String name;
+    private String author;
+    private Date date;
+
+    @XmlAttribute
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    @XmlElement(name = "title")
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @XmlTransient
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    @Override
+    public String toString() {
+        return "Book [id=" + id + ", name=" + name + ", author=" + author + ", date=" + date + "]";
+    }
+}

jaxb/src/main/java/com/baeldung/jaxb/DateAdapter.java

@@ -0,0 +1,28 @@
+package com.baeldung.jaxb;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+
+public class DateAdapter extends XmlAdapter<String, Date> {
+
+    private static final ThreadLocal<DateFormat> dateFormat = new ThreadLocal<DateFormat>() {
+
+        @Override
+        protected DateFormat initialValue() {
+            return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        }
+    };
+
+    @Override
+    public Date unmarshal(String v) throws Exception {
+        return dateFormat.get().parse(v);
+    }
+
+    @Override
+    public String marshal(Date v) throws Exception {
+        return dateFormat.get().format(v);
+    }
+}

jaxb/src/main/java/com/baeldung/jaxb/Main.java

@@ -0,0 +1,39 @@
+package com.baeldung.jaxb;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Date;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+
+public class Main {
+    public static void marshal() throws JAXBException, IOException {
+        Book book = new Book();
+        book.setId(1L);
+        book.setName("Book1");
+        book.setAuthor("Author1");
+        book.setDate(new Date());
+
+        JAXBContext context = JAXBContext.newInstance(Book.class);
+        Marshaller marshaller = context.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
+        marshaller.marshal(book, new File("./book.xml"));
+    }
+
+    public static Book unMashal() throws JAXBException, IOException {
+        JAXBContext context = JAXBContext.newInstance(Book.class);
+        Unmarshaller unmarshaller = context.createUnmarshaller();
+        Book book = (Book) unmarshaller.unmarshal(new FileReader("./book.xml"));
+        return book;
+    }
+
+    public static void main(String[] args) throws JAXBException, IOException {
+        marshal();
+        Book book = unMashal();
+        System.out.println(book.toString());
+    }
+}

jaxb/src/main/resources/global.xjb

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<jaxb:bindings version="2.0" xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
+    xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc" xmlns:xs="http://www.w3.org/2001/XMLSchema"
+    jaxb:extensionBindingPrefixes="xjc">
+
+    <jaxb:globalBindings>
+        <xjc:simple />
+        <xjc:serializable uid="-1" />
+        <jaxb:javaType name="java.util.Calendar" xmlType="xs:dateTime"
+            parseMethod="javax.xml.bind.DatatypeConverter.parseDateTime"
+            printMethod="javax.xml.bind.DatatypeConverter.printDateTime" />
+    </jaxb:globalBindings>
+</jaxb:bindings>

jaxb/src/main/resources/logback.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+		<layout class="ch.qos.logback.classic.PatternLayout">
+		      <pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg %n</pattern>
+	    </layout>
+	</appender>
+
+	<logger name="com.baeldung.hazelcast" level="INFO" additivity="false">
+		<appender-ref ref="STDOUT" />
+  	</logger>
+
+	<root level="DEBUG">          
+		<appender-ref ref="STDOUT" />
+	</root>  
+  
+</configuration>

jaxb/src/main/resources/user.xsd

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.baeldung.com/jaxb/gen"
+    xmlns:userns="http://www.baeldung.com/jaxb/gen" elementFormDefault="qualified">
+
+    <element name="userRequest" type="userns:UserRequest"></element>
+    <element name="userResponse" type="userns:UserResponse"></element>
+
+    <complexType name="UserRequest">
+        <sequence>
+            <element name="id" type="int" />
+            <element name="name" type="string" />
+        </sequence>
+    </complexType>
+
+    <complexType name="UserResponse">
+        <sequence>
+            <element name="id" type="int" />
+            <element name="name" type="string" />
+            <element name="gender" type="string" />
+            <element name="created" type="dateTime" />
+        </sequence>
+    </complexType>
+</schema>