Hibernate 5 Tutorials

Hibernate 5 Tutorials

 Now Hibernate 3 and 4 are deprecated and Industry prefer Hibernate 5 and Hibernate 6. You  have knowledge of Hibernate 5 also if you have knowledge Hibernate 3 and four. Many Updating added in Hibernate 5

Now I am explaining Step by Step

1)  Open Eclipse Create Maven Project, Select Internal under Category and select QuickStart archetype

2)  Add Dependency under pom.xml file of hibernate and MySQL Connector

<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/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.scs</groupId>

  <artifactId>Hibernate5</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>jar</packaging>

  <name>Hibernate5</name>

  <url>http://maven.apache.org</url>

  

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

  </properties>

      <dependencies>

        <dependency>

            <groupId>org.hibernate</groupId>

            <artifactId>hibernate-core</artifactId>

            <version>5.4.18.Final</version>

         </dependency>

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

            <version>8.0.20</version>

        </dependency>

    </dependencies>

</project>

3)  Create hibernate.cfg.xml file 

<?xml version="1.0" encoding="utf-8"?>

<!DOCTYPE hibernate-configuration PUBLIC

"-//Hibernate/Hibernate Configuration DTD 3.0//EN"

"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

 <session-factory>

  

    <property name="connection.url">jdbc:mysql://localhost:3306/ierp</property>

    <property name="connection.username">root</property>

    

    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>

    <property name="dialect">org.hibernate.dialect.MySQL8Dialect</property>

  

    <!-- 'show_sql' set true to check sql statements on console else set to false -->

    <property name="show_sql">true</property>

    <property name="format_sql">true</property>

    <!-- use 'create' to Create tables on application startup else use 'update'-->

    <property name="hbm2ddl.auto">create</property>

  

    <!-- JDBC connection pool -->

    <property name="connection.pool_size">5</property>

    <property name="current_session_context_class">thread</property>

 

     <!-- Domain Model classes to be mapped -->

    <mapping class="com.scs.Hibernate5.Student" />

 

</session-factory>

</hibernate-configuration>

4)  Create HibernateUtil.java file:-

package com.scs.Hibernate5;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.Configuration;

public class HibernateUtil {

private static final SessionFactory sessionFactory = buildSessionFactory();

  

    private static SessionFactory buildSessionFactory() {

        try {

            return new Configuration().configure().buildSessionFactory();

        } catch (Throwable ex) {

            System.err.println("build SeesionFactory failed :" + ex);

            throw new ExceptionInInitializerError(ex);

        }

    }

  

    public static SessionFactory getSessionFactory() {

        return sessionFactory;

    }

  

    public static void close() {

        // Close all cached and active connection pools

        getSessionFactory().close();

    }

  

}

5)  Create App.java file

package com.scs.Hibernate5;

import java.util.List;

import javax.persistence.TypedQuery;

import org.hibernate.Query;

import org.hibernate.Session;

/**

 * Hello world!

 *

 */

public class App 

{

    public static void main( String[] args )

    {

    Configuration cfg = new Configuration();

SessionFactory sf = cfg.configure().buildSessionFactory();

Session session = sf.openSession();

session.beginTransaction();

Student student = new Student();

student.setRno(1003);

student.setSname("STU3");

student.setBranch("EC");

student.setFees(75000);

session.save(student);

session.getTransaction().commit();

      //  Query<Student> q = session.createQuery("From Student", Student.class);

        TypedQuery<Student> q = session.createQuery("From Student", Student.class);

        List<Student> resultList = q.getResultList();

        System.out.println("total sudents:" + resultList.size());

        

        for (Student s : resultList) {

          System.out.println("student : " + s);

        }

      }

    }

Create Student Pojo Class:

package com.scs.hibernatepractice;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.Table;

@Entity(name = "Student")

@Table(name = "STUDENT")

public class Student {

@Id

private int rno;

@Column

private String sname;

@Column

private String branch;

@Column

private int fees;

public int getRno() {

return rno;

}

public void setRno(int rno) {

this.rno = rno;

}

public String getSname() {

return sname;

}

public void setSname(String sname) {

this.sname = sname;

}

public String getBranch() {

return branch;

}

public void setBranch(String branch) {

this.branch = branch;

}

public int getFees() {

return fees;

}

public void setFees(int fees) {

this.fees = fees;

}

}

Download Tutorials

We can create hibernate.properties file in place of hibernate.cfg.xml file also.

hibernate.connection.driver_class = com.mysql.jdbc.Driver

hibernate.connection.url = jdbc:mysql://localhost:3306/ierp

hibernate.connection.username = root

hibernate.c3p0.min_size=5

hibernate.c3p0.max_size=20

hibernate.c3p0.timeout=1800

hibernate.c3p0.max_statements=50

hibernate.dialect = org.hibernate.dialect.MySQL5Dialect