feat: Configure Spring Boot application properties

src/main/resources/application.properties

@@ -0,0 +1,7 @@
+spring.datasource.url=jdbc:mysql://localhost:3306/mydatabase
+spring.datasource.username=myuser
+spring.datasource.password=mypassword
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.format_sql=true