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<?xml version =" 1.0" encoding =" UTF-8" ?>
<project xmlns =" http:https://maven.apache.org/POM/4.0.0" xmlns : xsi =" http:https://www.w3.org/2001/XMLSchema-instance"
xsi : schemaLocation =" http:https://maven.apache.org/POM/4.0.0 http:https://maven.apache.org/xsd/maven-4.0.0.xsd" >
<modelVersion >4.0.0</modelVersion >
<parent >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-starter-parent</artifactId >
<version >3.0.2</version >
<relativePath /> <!-- lookup parent from repository -->
</parent >
<groupId >com.in28minutes.springboot.rest.example</groupId >
<artifactId >spring-boot-2-jpa-with-hibernate-and-h2</artifactId >
<version >0.0.1-SNAPSHOT</version >
<packaging >jar</packaging >
<name >spring-boot-2-jpa-with-hibernate-and-h2</name >
<description >Spring Boot 2, Hibernate, JPA and H2 - Example Project</description >
<properties >
<java .version>17</java .version>
</properties >
<dependencies >
<dependency >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-starter-data-jpa</artifactId >
</dependency >
<dependency >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-starter-web</artifactId >
</dependency >
<dependency >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-devtools</artifactId >
<scope >runtime</scope >
</dependency >
<dependency >
<groupId >com.h2database</groupId >
<artifactId >h2</artifactId >
<scope >runtime</scope >
</dependency >
<dependency >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-starter-test</artifactId >
<scope >test</scope >
</dependency >
</dependencies >
<build >
<plugins >
<plugin >
<groupId >org.springframework.boot</groupId >
<artifactId >spring-boot-maven-plugin</artifactId >
</plugin >
</plugins >
</build >
<repositories >
<repository >
<id >spring-milestones</id >
<name >Spring Milestones</name >
<url >https://repo.spring.io/milestone</url >
<snapshots >
<enabled >false</enabled >
</snapshots >
</repository >
</repositories >
<pluginRepositories >
<pluginRepository >
<id >spring-milestones</id >
<name >Spring Milestones</name >
<url >https://repo.spring.io/milestone</url >
<snapshots >
<enabled >false</enabled >
</snapshots >
</pluginRepository >
</pluginRepositories >
</project >
/src/main/java/com/in28minutes/springboot/jpa/hibernate/h2/example/SpringBoot2JPAWithHibernateAndH2Application.java
package com .in28minutes .springboot .jpa .hibernate .h2 .example ;
import org .slf4j .Logger ;
import org .slf4j .LoggerFactory ;
import org .springframework .beans .factory .annotation .Autowired ;
import org .springframework .boot .CommandLineRunner ;
import org .springframework .boot .SpringApplication ;
import org .springframework .boot .autoconfigure .SpringBootApplication ;
import com .in28minutes .springboot .jpa .hibernate .h2 .example .student .Student ;
import com .in28minutes .springboot .jpa .hibernate .h2 .example .student .StudentRepository ;
@ SpringBootApplication
public class SpringBoot2JPAWithHibernateAndH2Application implements CommandLineRunner {
private final Logger LOGGER = LoggerFactory .getLogger (this .getClass ());
@ Autowired
StudentRepository repository ;
@ Override
public void run (String ... args ) {
LOGGER .info ("Student id 10001 -> {}" , repository .findById (10001L ));
LOGGER .info ("Inserting -> {}" , repository .save (new Student ("John" , "A1234657" )));
LOGGER .info ("Update 10003 -> {}" , repository .save (new Student (10001L , "Name-Updated" , "New-Passport" )));
repository .deleteById (10002L );
LOGGER .info ("All users -> {}" , repository .findAll ());
}
public static void main (String [] args ) {
SpringApplication .run (SpringBoot2JPAWithHibernateAndH2Application .class , args );
}
}
/src/main/java/com/in28minutes/springboot/jpa/hibernate/h2/example/student/Student.java
package com .in28minutes .springboot .jpa .hibernate .h2 .example .student ;
// Changed from javax to jakarta
import jakarta .persistence .Entity ;
import jakarta .persistence .GeneratedValue ;
import jakarta .persistence .Id ;
@ Entity
public class Student {
@ Id
@ GeneratedValue
private Long id ;
private String name ;
private String passportNumber ;
public Student () {
super ();
}
public Student (Long id , String name , String passportNumber ) {
super ();
this .id = id ;
this .name = name ;
this .passportNumber = passportNumber ;
}
public Student (String name , String passportNumber ) {
super ();
this .name = name ;
this .passportNumber = passportNumber ;
}
public Long getId () {
return id ;
}
public void setId (Long id ) {
this .id = id ;
}
public String getName () {
return name ;
}
public void setName (String name ) {
this .name = name ;
}
public String getPassportNumber () {
return passportNumber ;
}
public void setPassportNumber (String passportNumber ) {
this .passportNumber = passportNumber ;
}
@ Override
public String toString () {
return String .format ("Student [id=%s, name=%s, passportNumber=%s]" , id , name , passportNumber );
}
}
/src/main/java/com/in28minutes/springboot/jpa/hibernate/h2/example/student/StudentRepository.java
package com .in28minutes .springboot .jpa .hibernate .h2 .example .student ;
import org .springframework .data .jpa .repository .JpaRepository ;
import org .springframework .stereotype .Repository ;
@ Repository
public interface StudentRepository extends JpaRepository <Student , Long > {
}
/src/main/resources/application.properties
# Enabling H2 Console
spring.h2.console.enabled =true
# Turn Statistics on
spring.jpa.properties.hibernate.generate_statistics =true
logging.level.org.hibernate.stat =debug
# Show all queries
spring.jpa.show-sql =true
spring.jpa.properties.hibernate.format_sql =true
logging.level.org.hibernate.type =trace
spring.datasource.url =jdbc:h2:mem:testdb
spring.data.jpa.repositories.bootstrap-mode =default
spring.jpa.defer-datasource-initialization =true
/src/main/resources/data.sql
insert into student
values(10001,'Ranga', 'E1234567');
insert into student
values(10002,'Ravi', 'A1234568');
/src/test/java/com/in28minutes/springboot/jpa/hibernate/h2/example/SpringBoot2JPAWithHibernateAndH2ApplicationTests.java
import org .junit .jupiter .api .Test ;
import org .junit .jupiter .api .extension .ExtendWith ;
import org .springframework .boot .test .context .SpringBootTest ;
import org .springframework .test .context .junit .jupiter .SpringExtension ;
// replaced @RunWith with @ExtendWith
// replaced SpringRunner.class with SpringExtension.class
@ ExtendWith (SpringExtension .class )
@ SpringBootTest
public class SpringBoot2JPAWithHibernateAndH2ApplicationTests {
@ Test
public void contextLoads () {
}
}