XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

Click here to watch on Youtube:
https://www.youtube.com/watch?v=rBTXKdYAxHQ&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge:

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

XML Marshalling and UnMarshalling using Spring and Castor XML binding framework - Annotation Config

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.ram.core</groupId>
    <artifactId>SpringDemo</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>SpringDemo</name>
    <url>http://maven.apache.org</url>

    <properties>
        <spring.version>5.1.1.RELEASE</spring.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
            <scope>test</scope>
        </dependency>

        <!-- Spring 3 dependencies -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>


        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Uses Castor for XML -->
        <dependency>
            <groupId>org.codehaus.castor</groupId>
            <artifactId>castor</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- Castor need this -->
        <dependency>
            <groupId>xerces</groupId>
            <artifactId>xercesImpl</artifactId>
            <version>2.8.1</version>
        </dependency>

    </dependencies>
</project>

Customer.java

package com.ram.core.model;

public class Customer
{
    private String name;
    private int age;
    private String address;

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    public int getAge()
    {
        return age;
    }

    public void setAge(int age)
    {
        this.age = age;
    }

    public String getAddress()
    {
        return address;
    }

    public void setAddress(String address)
    {
        this.address = address;
    }

    @Override
    public String toString()
    {
        return "Customer [name=" + name + ", age=" + age
                + ", address=" + address + "]";
    }

}

customer_mapping.xml

<mapping>
    <class name="com.ram.core.model.Customer">

        <map-to xml="customer" />

        <field name="name" type="string">
            <bind-xml name="name" node="element" />
        </field>

        <field name="age" type="integer">
            <bind-xml name="age" node="attribute" />
        </field>

        <field name="address" type="string">
            <bind-xml name="address" node="element" />
        </field>
    </class>
</mapping>

XMLConverter.java

package com.ram.core;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

import org.springframework.oxm.Marshaller;
import org.springframework.oxm.Unmarshaller;

public class XMLConverter
{
    private Marshaller marshaller; 
    private Unmarshaller unmarshaller;

    public Marshaller getMarshaller()
    {
        return marshaller;
    }

    public void setMarshaller(Marshaller marshaller)
    {
        this.marshaller = marshaller;
    }

    public Unmarshaller getUnmarshaller()
    {
        return unmarshaller;
    }

    public void setUnmarshaller(Unmarshaller unmarshaller)
    {
        this.unmarshaller = unmarshaller;
    }

    public void convertFromObjectToXML(Object object, String filepath)
            throws IOException
    {

        FileOutputStream os = null;
        try
        {
            os = new FileOutputStream(filepath);
            getMarshaller().marshal(object, new StreamResult(os));
        }
        finally
        {
            if (os != null)
            {
                os.close();
            }
        }
    }

    public Object convertFromXMLToObject(String xmlfile)
            throws IOException
    {
        FileInputStream is = null;
        try
        {
            is = new FileInputStream(xmlfile);
            return getUnmarshaller().unmarshal(new StreamSource(is));
        }
        finally
        {
            if (is != null)
            {
                is.close();
            }
        }
    }

}

AppConfig.java

package com.ram.core.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.oxm.castor.CastorMarshaller;

import com.ram.core.XMLConverter;

@Configuration
public class AppConfig
{

    @Bean
    public XMLConverter getHandler()
    {
        XMLConverter xmlConverter = new XMLConverter();
        xmlConverter.setMarshaller(getCastorMarshaller());
        xmlConverter.setUnmarshaller(getCastorMarshaller());
        return xmlConverter;
    }

    @Bean
    public CastorMarshaller getCastorMarshaller()
    {
        @SuppressWarnings("deprecation")
        CastorMarshaller castorMarshaller = new CastorMarshaller();
        Resource resource = new ClassPathResource(
                "customer_mapping.xml");
        castorMarshaller.setMappingLocation(resource);
        return castorMarshaller;
    }

}

castor.properties

org.exolab.castor.indent = true

App.java

package com.ram.core;

import java.io.IOException;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

import com.ram.core.config.AppConfig;
import com.ram.core.model.Customer;

public class App
{
    private static final String XML_FILE_NAME = "customer.xml";

    public static void main(String[] args) throws IOException
    {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
                AppConfig.class);
        XMLConverter converter = (XMLConverter) context
                .getBean(XMLConverter.class);

        Customer customer = new Customer();
        customer.setName("Peter");
        customer.setAge(52);
        customer.setAddress("A505,North Street,Bangalore");

        // from object to XML file
        converter.convertFromObjectToXML(customer, XML_FILE_NAME);
        System.out.println("Converted Object to XML!");

        // from XML to object
        Customer customer2 = (Customer) converter
                .convertFromXMLToObject(XML_FILE_NAME);
        System.out.println(customer2);
        System.out.println("Converted XML to Object!");

    }
}

Output:

Converted Object to XML!
Customer [name=Peter, age=52, address=A505,North Street,Bangalore]
Converted XML to Object!

customer.xml

<?xml version="1.0" encoding="UTF-8"?>
<customer age="52">
    <name>Peter</name>
    <address>A505,North Street,Bangalore</address>
</customer>

Click the below link to download the code:
https://sites.google.com/site/javaspringram2019/java_spring_2019/SpringDemo_Object_XML_mapping_castor_Annotation_config.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java_Spring_2019/tree/master/Spring_2019/SpringDemo_Object_XML_mapping_castor_Annotation_config

Bitbucket Link:
https://bitbucket.org/ramram43210/java_spring_2019/src/c049acad029f0a80d06bdf2c723a2d5703cecc59/Spring_2019/SpringDemo_Object_XML_mapping_castor_Annotation_config/?at=master

See also:

All JavaEE Videos Playlist

All JavaEE Videos

All JAVA EE Links

Spring Tutorial

Servlets Tutorial

All Design Patterns Links

JDBC Tutorial

Java Collection Framework Tutorial

JAVA Tutorial

Kids Tutorial

Cooking Tutorial