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>
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
This is another example of Hibernate to perform CRUD Operation using easy way:
Create 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;
}
}
Create Hibernate.cfg.xml
<!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">update</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.hibernatepractice.Student" />
</session-factory>
</hibernate-configuration>
Create Hibernate Operation class to implement CRUD Operation
I have used HQL Hibernate Query language for data selection and find record by branch, other method use hibernate persistent object.
package com.scs.hibernatepractice;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.query.Query;
public class HiberntaeOperation {
Configuration cfg ;
SessionFactory sf;
Session session ;
public void addStudentRecord(int rno,String sname,String branch,int fees)
{
cfg= new Configuration();
sf = cfg.configure().buildSessionFactory();
session= sf.openSession();
session.beginTransaction();
Student student = new Student();
student.setRno(rno);
student.setSname(sname);
student.setBranch(branch);
student.setFees(fees);
session.save(student);
session.getTransaction().commit();
session.close();
this.selectStudentRecord();
}
public void updateStudentRecord(int rno,String sname,String branch,int fees)
{
cfg= new Configuration();
sf = cfg.configure().buildSessionFactory();
session= sf.openSession();
session.beginTransaction();
Student student = session.get(Student.class,rno);
student.setSname(sname);
student.setBranch(branch);
student.setFees(fees);
session.update(student);
session.getTransaction().commit();
session.close();
this.selectStudentRecord();
}
public void findStudentRecord(int rno)
{
cfg= new Configuration();
sf = cfg.configure().buildSessionFactory();
session= sf.openSession();
session.beginTransaction();
Student student = session.get(Student.class,rno);
System.out.println("rno is "+student.getRno()+ " name is "+student.getSname() + " branch is "+student.getBranch() + " fees is "+student.getFees());
session.close();
// this.selectStudentRecord();
}
public void deleteStudentRecord(int rno)
{
cfg= new Configuration();
sf = cfg.configure().buildSessionFactory();
session= sf.openSession();
session.beginTransaction();
Student student = session.get(Student.class,rno);
session.delete(student);
session.getTransaction().commit();
session.close();
this.selectStudentRecord();
}
public void selectStudentRecord()
{
cfg = new Configuration();
sf = cfg.configure().buildSessionFactory();
session = sf.openSession();
Query q = session.createQuery("from Student",Student.class);
List<Student> s = q.getResultList();
for(Student obj:s)
{
System.out.println("rno " + obj.getRno() + " name is "+obj.getSname());
}
session.close();
}
public void selectStudentRecordByBranch(String branch)
{
cfg = new Configuration();
sf = cfg.configure().buildSessionFactory();
session = sf.openSession();
Query q = session.createQuery("from Student s where branch=:b",Student.class);
q.setString("b", branch);
List<Student> s = q.getResultList();
for(Student obj:s)
{
System.out.println("rno " + obj.getRno() + " name is "+obj.getSname());
}
session.close();
}
public static void main(String[] args) {
HiberntaeOperation obj = new HiberntaeOperation();
obj.selectStudentRecordByBranch("CS");
// obj.findStudentRecord(1001);
// obj.deleteStudentRecord(1008);
}
}
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