Hibernate Hello World example using Annotation

In this tutorial we will write a CRUD application in Hibernate using Java 5 Annotation. For this we will use our previous tutorial Hibernate Maven MySQL hello world example (XML Mapping) as base and convert it from XML Mapping to Annotation. [sc name=”Hibernate_Tutorials”] Tools and Technologies used:
  1. Java JDK 5 or above
  2. Eclipse IDE 3.2 or above
  3. Maven 3.0 or above
  4. Hibernate 3.0 or above
  5. MySQL 5.0 or above

1. Database Creation

For this tutorial, we will create a simple table “employee” in MySQL. Use following script to create the table.
Code language: SQL (Structured Query Language) (sql)

2. Create Project Structure

Follow the steps in Hibernate Maven MySQL hello world example (XML Mapping) to create project structure. Or you can directly download the source code from above tutorial in Eclipse. Download: HibernateHelloWorldXML.zip (8 kb)

3. Update Hibernate dependency in Maven pom.xml

We are going to use Annotation mapping in Hibernate. Update the maven’s pom.xml file and add following dependencies.
<?xml version="1.0" encoding="UTF-8"?><project> <modelVersion>4.0.0</modelVersion> <groupId>HibernateCache</groupId> <artifactId>HibernateCache</artifactId> <version>0.0.1-SNAPSHOT</version> <description></description> <dependencies> <dependency> <groupId>org.hibernate</groupId> <artifactId>ejb3-persistence</artifactId> <version>1.0.1.GA</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.3.1.GA</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.10</version> </dependency> </dependencies> </project>
Code language: HTML, XML (xml)
Once we update the Hibernate dependency, run following command in your project folder to update classpath in eclipse to that errors are removed.
mvn eclipse:eclipse
Code language: HTML, XML (xml)

4. Delete unused Employee.hbm.xml

The Employee.hbm.xml file under /src/main/java/net/viralpatel/hibernate is no more required. Delete this file from project.

5. Update Employee entity

The Employee class is simple POJO. We will add Annotations in this class. Update it as follows:
package net.viralpatel.hibernate; import java.sql.Date; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="EMPLOYEE") public class Employee { @Id @GeneratedValue private Long id; @Column(name="firstname") private String firstname; @Column(name="lastname") private String lastname; @Column(name="birth_date") private Date birthDate; @Column(name="cell_phone") private String cellphone; public Employee() { } public Employee(String firstname, String lastname, Date birthdate, String phone) { this.firstname = firstname; this.lastname = lastname; this.birthDate = birthdate; this.cellphone = phone; } // Getter and Setter methods }
Code language: Java (java)

6. Update Hibernate Utility

In our previous example, we were using Configuration class to generate SessionFactory object. In HibernateUtil we had following line of code:
return new Configuration() .configure() .buildSessionFactory();
Code language: Java (java)
Change this line and use AnnotationConfiguration instead of Configuration(). Replace this line with below code.
// import org.hibernate.cfg.AnnotationConfiguration; return new AnnotationConfiguration() .configure() .buildSessionFactory();
Code language: Java (java)

7. Update Hibernate Configuration file

The hibernate.cfg.xml configuration file needs to be changed to add the new Annotation based entity class Employee.java instead of old XML Mapping Employee.hbm.xml. Open /src/main/resources/hibernate.cfg.xml and replace following line:
<mapping resource="net/viralpatel/hibernate/Employee.hbm.xml"/>
Code language: HTML, XML (xml)
Replace above line with following:
<mapping class="net.viralpatel.hibernate.Employee"/>
Code language: HTML, XML (xml)

8. Review Final Project Structure

Review your project structure. It should be like: hibernate-annotation-hello-wold-project-structure

9. Execute project

Execute the Main.java class and see output.
******* READ ******* Total Employees: 200 ******* WRITE ******* 201 Jack Bauer ******* UPDATE ******* Name Before Update:Paula Name Aftere Update:James ******* DELETE ******* Object:null
Code language: Java (java)

That’s All Folks

Today we saw how to write our first Hibernate hello world example using Annotations. We used Maven to generate Java project and added Hibernate dependencies into it. Also we saw how to do different CRUD operations in Hibernate.

Download Source

HibernateHelloWorldAnnotation.zip (15 kb)
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  1. Karthik says:

    Awesome Tutorial.
    In pom.xml, currently, the annotations, JPA etc.. are part of hibernate-core dependency.
    Please do update Dependencies in pom.xml to:
    (Remove extra “”). Some issues with posting comment here




  2. jAKEER says:

    thanks VP…thanks for a wonderful food .


  3. kumar says:

    How to connect with oracle………

  4. sam says:

    how to connect with oracle 10g

    • Hi Sam, To connect with Oracle database use following settings in hibernate configuration file.

      <property name="hibernate.connection.driver_class">
          <property name="hibernate.connection.url">
          <property name="hibernate.connection.username">
          <property name="hibernate.connection.password">
          <property name="dialect">

  5. ramya says:

    Im not able to work with Hibernate annotations when i tried to run the project im getting Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
    Exception in thread “main” java.lang.ExceptionInInitializerError error

  6. ramya says:

    Can anyone share the JARS for Hibernates along with annotations hibernate official site is blocked for us in office

  7. Swen Johnson says:

    Source download link doesn’t work.

    • Hi Swen, Download link is working. Please check if download is not blocked in your browser.

  8. Sachin Patil says:

    This is very good tutorial for beginner but only problem at adding supported jar file. otherwise will run this example by a new comer. Thank u bhaava…..

  9. Vijendra Kumawat says:

    Hi viral…
    Thanks for your wonderful blog.
    I am trying to integrate hibernate with JSF. Do you any example for this. I tried to google for this but did not find any useful example.

  10. Felipe says:

    Awesome tutorial, I looked for Hibernate project with maven on Youtube, google and finally got your blog.
    I worked perfectly.
    Thank you so much!!!!!!

  11. Anup says:

    I am using annotations instead of hdm files.
    Database is created properly,but whenever i hit to db server for fetching data sometime data is not getting fetched.
    Can you suggest any solutions ?
    I have also removed fetchType eager for Onetomany mappings.

  12. Sefer says:

    You must add core hibernate on pom.xml file.


    and you will check your dependency versions. don’t skip that ;)


  13. praneeth says:

    Is their a way so that i can add @Table annotation dynamically at run time.
    Value of Name attribute in Table annotation must be dynamic.
    I tried Javassist but it didn’t satisfied me. I’m losing fuctionality of hibernate in auto genertion of table if table doesn;t exist in DB.
    Pls help me.
    Thank you.

  14. kapil says:

    How to run that plz tell me once.

  15. Hnin Yee Maung Maung says:

    Thank you so much for your clear explanation. I have got so many knowledge from your website.

  16. kssan says:

    i am using Netbeans 8.0.2 but
    // import org.hibernate.cfg.AnnotationConfiguration;

    return new AnnotationConfiguration()
    does not work how can i solve it?

  17. kssan says:

    i am using netbeans 8.0.2 but
    // import org.hibernate.cfg.AnnotationConfiguration;

    return new AnnotationConfiguration()
    does not work how can i solve it?

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