BAEL-2709: Implementing example for Spring Boot Hibernate. (#6478)

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothibernate/application/ExampleApplication.java

@@ -0,0 +1,14 @@
+package com.baeldung.springboothibernate.application;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ExampleApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(ExampleApplication.class, args);
+	}
+
+}
+

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothibernate/application/datasources/DataSourceBean.java

@@ -0,0 +1,21 @@
+package com.baeldung.springboothibernate.application.datasources;
+
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import javax.sql.DataSource;
+
+@Configuration
+public class DataSourceBean {
+    
+    @Bean
+    public DataSource getDataSource() {
+        DataSourceBuilder dataSourceBuilder = DataSourceBuilder.create();
+        dataSourceBuilder.driverClassName("org.h2.Driver");
+        dataSourceBuilder.url("jdbc:h2:mem:test");
+        dataSourceBuilder.username("SA");
+        dataSourceBuilder.password("");
+        return dataSourceBuilder.build();
+    }
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothibernate/application/models/Book.java

@@ -0,0 +1,40 @@
+package com.baeldung.springboothibernate.application.models;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class Book {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+    private String name;
+
+    public Book() {
+        super();
+    }
+
+    public Book(Long id, String name) {
+        super();
+        this.id = id;
+        this.name = name;
+    }
+
+    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;
+    }
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothibernate/application/repositories/BookRepository.java

@@ -0,0 +1,9 @@
+package com.baeldung.springboothibernate.application.repositories;
+
+import com.baeldung.springboothibernate.application.models.Book;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface BookRepository extends JpaRepository<Book, Long> {
+}

persistence-modules/spring-boot-persistence/src/main/java/com/baeldung/springboothibernate/application/services/BookService.java

@@ -0,0 +1,19 @@
+package com.baeldung.springboothibernate.application.services;
+
+import com.baeldung.springboothibernate.application.models.Book;
+import com.baeldung.springboothibernate.application.repositories.BookRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class BookService {
+
+    @Autowired
+    private BookRepository bookRepository;
+
+    public List<Book> list() {
+        return bookRepository.findAll();
+    }
+}

persistence-modules/spring-boot-persistence/src/main/resources/application.properties

@@ -3,3 +3,9 @@ spring.datasource.url = jdbc:hsqldb:mem:test;DB_CLOSE_DELAY=-1
 spring.datasource.username = sa
 spring.datasource.password =
 spring.jpa.hibernate.ddl-auto = create
+
+# Enabling H2 Console
+spring.h2.console.enabled=true
+
+# Uppercase Table Names
+spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

persistence-modules/spring-boot-persistence/src/test/java/com/baeldung/springboothibernate/application/tests/BookServiceUnitTest.java

@@ -0,0 +1,27 @@
+package com.baeldung.springboothibernate.application.tests;
+
+import com.baeldung.springboothibernate.application.models.Book;
+import com.baeldung.springboothibernate.application.services.BookService;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.List;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class BookServiceUnitTest {
+
+    @Autowired
+    private BookService bookService;
+
+    @Test
+    public void test() {
+        List<Book> books = bookService.list();
+
+        Assert.assertEquals(books.size(), 3);
+    }
+}

persistence-modules/spring-boot-persistence/src/test/resources/application.properties

@@ -12,5 +12,5 @@ hibernate.cache.use_second_level_cache=true
 hibernate.cache.use_query_cache=true
 hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
 
-spring.jpa.properties.hibernate.hbm2ddl.import_files=migrated_users.sql
+spring.jpa.properties.hibernate.hbm2ddl.import_files=migrated_users.sql, import_books.sql
 spring.datasource.data=import_*_users.sql

persistence-modules/spring-boot-persistence/src/test/resources/import_books.sql

@@ -0,0 +1,3 @@
+insert into book values(1, 'The Tartar Steppe');
+insert into book values(2, 'Poem Strip');
+insert into book values(3, 'Restless Nights: Selected Stories of Dino Buzzati');