In tutorial we going to teach Hibernate crud tutorial create delete update search.if you study Hibernate this is best place where you learn.i attached video tutorials below how to do step by step
first you must learn database configuration.here
create the package entity inside the package create the class
Student
package entity;
import javax.persistence.*;
@Entity
@Table(name = "student_table")
public class Student {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id")
private long studid;
@Column(name = "studentname")
private String studName;
@Column(name = "fee")
private double fee;
public Student(long studid, String studName, double fee) {
this.studid = studid;
this.studName = studName;
this.fee = fee;
}
public Student() {
}
public long getStudid() {
return studid;
}
public void setStudid(long studid) {
this.studid = studid;
}
public String getStudName() {
return studName;
}
public void setStudName(String studName) {
this.studName = studName;
}
public double getFee() {
return fee;
}
public void setFee(double fee) {
this.fee = fee;
}
@Override
public String toString() {
return "Student{" +
"studid=" + studid +
", studName='" + studName + '\'' +
", fee=" + fee +
'}';
}
}
Create the AppIntilizer.
AppIntilizer
import entity.Student;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.Metadata;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Environment;
import org.hibernate.query.Query;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
public class AppIntilizer {
public static void main(String args[])
{
Student student = new Student(2,"Anne",2000);
saveStudent(student);
AllStudents();
updateStudent("Raja", 6000, 2);
deleteStudent(2);
findStudent(1);
}
public static void saveStudent(Student student) {
try (Session session = HibranateUtil.getSessionFactory().openSession()) {
Transaction transaction = session.beginTransaction();
session.save(student);
transaction.commit();
}
}
private static void AllStudents() {
try (Session session = HibranateUtil.getSessionFactory().openSession()) {
Query query = session.createQuery("FROM Student");
List<Student> students = query.list();
System.out.println(students);
}
}
public static void updateStudent(String name, double fee, long id) {
try (Session session = HibranateUtil.getSessionFactory().openSession()) {
Student selectStudent = session.find(Student.class, id);
if (selectStudent != null) {
selectStudent.setStudName(name);
selectStudent.setFee(fee);
Transaction transaction = session.beginTransaction();
session.update(selectStudent);
transaction.commit();
}
else
{
System.out.println("Can't Find Records");
}
}
}
public static void deleteStudent(long id) {
try (Session session = HibranateUtil.getSessionFactory().openSession()) {
Student selectStudent = session.find(Student.class, id);
if (selectStudent != null) {
Transaction transaction = session.beginTransaction();
session.delete(selectStudent);
transaction.commit();
}
else
{
System.out.println("Can't Find Records");
}
}
}
public static void findStudent(long id) {
try (Session session = HibranateUtil.getSessionFactory().openSession())
{
Student selectStudent = session.find(Student.class, id);
if (selectStudent != null) {
System.out.println(selectStudent.toString());
}
else
{
System.out.println("Can't Find Records");
}
}
}
}
hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.url">jdbc:mysql://localhost:3306/dbbcast?createDatabaseIfNotExist=true </property>
<property name="connection.driver_class">com.mysql.cj.jdbc.Driver </property>
<property name="connection.username">root</property>
<property name="connection.password">root123</property>
<property name="dialect">org.hibernate.dialect.MySQL57Dialect</property>
<property name="hibernate.hbm2ddl.auto">update </property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
</session-factory>
</hibernate-configuration>HibranateUtil
import entity.Student;
import org.hibernate.SessionFactory;
import org.hibernate.boot.Metadata;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Environment;
import java.util.HashMap;
import java.util.Map;
public class HibranateUtil {
private static StandardServiceRegistry standardServiceRegistry;
private static SessionFactory sessionFactory;
static {
try {
if (sessionFactory == null)
{
standardServiceRegistry = new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build();
MetadataSources metadataSources = new MetadataSources(standardServiceRegistry).addAnnotatedClass(Student.class);
Metadata metadata = metadataSources.getMetadataBuilder().build();
sessionFactory = metadata.getSessionFactoryBuilder().build();
}
} catch (Exception e) {
if (standardServiceRegistry != null)
{
StandardServiceRegistryBuilder.destroy(standardServiceRegistry);
}
}
}
public static SessionFactory getSessionFactory()
{
return sessionFactory;
}
}
I have attached the video link below. which will do this tutorials step by step.
