I've tried everything, it seems to me. But it always gives me error "Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured." These are my pom.xml and application.properties files.
...
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>18</java.version>
<maven.compiler.source>1.18</maven.compiler.source>
<maven.compiler.target>1.18</maven.compiler.target>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.9</version>
<relativePath/>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.7.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.12.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
...
#https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
spring.datasource.url=jdbc:postgresql:5432//localhost/gamestudio
spring.datasource.username=<my username>
spring.datasource.password=<my password>
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.hikari.maximumPoolSize=2
#spring.jpa.hibernate.ddl-auto=create-drop
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true
spring.datasource.url=jdbc:postgresql://localhost:5432/gamestudio
spring.datasource.username=<my username>
spring.datasource.password=<my password>
spring.jpa.hibernate.ddl-auto=<create | create-drop | update | validate | none>
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
I changed my pom.xml several times, I even ckecked application.properties, I've tried two different methods at the end of this question, I don't really understand the difference, but nothing helped.