build.gradle.kts

@@ -24,14 +24,24 @@ repositories {
 }
 
 dependencies {
+	implementation("org.springframework.boot:spring-boot-autoconfigure")
+
 	implementation("org.springframework.boot:spring-boot-starter-jdbc")
+	implementation("org.xerial:sqlite-jdbc")
+	implementation("org.springframework.boot:spring-boot-starter-data-jpa")
+	implementation("org.hibernate.orm:hibernate-community-dialects")
+
 	implementation("org.springframework.boot:spring-boot-starter-security")
 	implementation("org.springframework.boot:spring-boot-starter-web")
+
 	implementation("org.flywaydb:flyway-core")
+
 	compileOnly("org.projectlombok:lombok")
 	annotationProcessor("org.projectlombok:lombok")
+
 	testImplementation("org.springframework.boot:spring-boot-starter-test")
 	testImplementation("org.springframework.security:spring-security-test")
+
 	testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 

src/main/java/de/mlessmann/certassist/config/DatabaseConfig.java

@@ -0,0 +1,59 @@
+package de.mlessmann.certassist.config;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.core.env.Environment;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+
+import javax.sql.DataSource;
+import java.util.Objects;
+import java.util.Properties;
+
+@Configuration
+@RequiredArgsConstructor
+//@EnableJpaRepositories(basePackages = "de.mlessmann.certassist.repositories")
+@PropertySource("classpath:persistence.properties")
+public class DatabaseConfig {
+
+    final Environment env;
+
+    @Bean
+    public DataSource dataSource() {
+        final DriverManagerDataSource dataSource = new DriverManagerDataSource();
+        dataSource.setDriverClassName(Objects.requireNonNull(env.getProperty("driverClassName")));
+        dataSource.setUrl(Objects.requireNonNull(env.getProperty("url")));
+        dataSource.setUsername(Objects.requireNonNull(env.getProperty("username")));
+        dataSource.setPassword(Objects.requireNonNull(env.getProperty("password")));
+        return dataSource;
+    }
+
+    @Bean
+    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
+        final LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
+        entityManagerFactory.setDataSource(dataSource());
+        //entityManagerFactory.setPackagesToScan("de.mlessmann.certassist.models");
+        entityManagerFactory.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
+        entityManagerFactory.setJpaProperties(additionalProperties());
+        return entityManagerFactory;
+    }
+
+    final Properties additionalProperties() {
+        final Properties hibernateProperties = new Properties();
+        if (env.getProperty("hibernate.hbm2ddl.auto") != null) {
+            hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
+        }
+        if (env.getProperty("hibernate.dialect") != null) {
+            hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
+        }
+        if (env.getProperty("hibernate.show_sql") != null) {
+            hibernateProperties.setProperty("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
+        }
+        return hibernateProperties;
+    }
+
+}

src/main/resources/persistence.properties

@@ -0,0 +1,7 @@
+driverClassName=org.sqlite.JDBC
+url=jdbc:sqlite:memory:myDb?cache=shared
+username=admin
+password=admin
+spring.jpa.database-platform=org.hibernate.community.dialect.SQLiteDialect
+hibernate.hbm2ddl.auto=create-drop
+hibernate.show_sql=true