ibrahimkurce

@SpringBootApplication
public class SpringDataJpaApplication {
  public static void main(String[] args) {
    SpringApplication.run(SpringDataJpaApplication.class, args);
  }
  
  @Bean
  public ApplicationRunner configure(UserRepository userRepository) {
    return env -> {
      User user1 = new User("beth", LocalDate.of(2020, Month.AUGUST, 3));

ibrahimkurce

@Entity
@Table(name = "USERS")
public class User {
  @Id
  @GeneratedValue
  private Long id;
  private String username;
  private LocalDate registrationDate;
  
  public User() {}

ibrahimkurce

<parent> 
  <groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-parent</artifactId> 
  <version>2.7.0</version> 
  <relativePath/> <!-- lookup parent from repository --> 
</parent>
<groupId>com.manning.javapersistence</groupId> 
<artifactId>springdatajpa</artifactId> 
<version>0.0.1-SNAPSHOT</version> 
<name>springdatajpa</name> 

ibrahimkurce

@ExtendWith(SpringExtension.class)
@ContextConfiguration(classes = {SpringDataConfiguration.class})
public class HelloWorldSpringDataJPATest {
  @Autowired
  private MessageRepository messageRepository;
  
  @Test
  public void storeLoadMessage() {
    Message message = new Message();
    message.setText("Hello World from Spring Data JPA!");

ibrahimkurce

public class HelloWorldHibernateTest {
  private static SessionFactory createSessionFactory() {
    Configuration configuration = new Configuration();
    configuration.configure().addAnnotatedClass(Message.class);
    ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().
      applySettings(configuration.getProperties()).build();
    return configuration.buildSessionFactory(serviceRegistry);
  }
  
  @Test

ibrahimkurce

<?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="hibernate.connection.driver_class">com.mysql.cj.jdbc.Driver</property>
      <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/CH02?serverTimezone=UTC</property>
      <property name="hibernate.connection.username">root</property>
      <property name="hibernate.connection.password" />
      <property name="hibernate.connection.pool_size">50</property>

ibrahimkurce

public class HelloWorldJPATest {
  @Test
  public void storeLoadMessage() {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("ch02");
    try {
      EntityManager em = emf.createEntityManager();
      em.getTransaction().begin();
      
      Message message = new Message();
      message.setText("Hello World!");

ibrahimkurce

@Entity
public class Message {
  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Long id;
  private String text;
  
  public String getText() {
    return text;
  }

ibrahimkurce

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" 
             version="2.0">
   <persistence-unit name="ch02">
      <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
      <properties>
         <property name="javax.persistence.jdbc.driver" value="com.mysql.cj.jdbc.Driver" />
         <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/CH02?serverTimezone=UTC " />
         <property name="javax.persistence.jdbc.user" value="root" />
         <property name="javax.persistence.jdbc.password" value="" />

ibrahimkurce

<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-entitymanager</artifactId>
  <version>5.6.9.Final</version>
</dependency>
<dependency>
  <groupId>org.junit.jupiter</groupId>
  <artifactId>junit-jupiter-engine</artifactId>
  <version>5.8.2</version>
  <scope>test</scope>