implementing getting the correct BeanFactory in a Spring application with multiple configurations
I'm stuck on something that should probably be simple. I'm working with a question with my Spring application where I'm unable to obtain the correct `BeanFactory` when multiple configuration classes are defined. I have two configuration classes, `AppConfig` and `DataConfig`, both of which have some overlapping bean definitions. The scenario arises when I try to autowire a bean defined in `DataConfig` into a service in `AppConfig`. I'm getting a `NoSuchBeanDefinitionException` indicating that the bean want to be found. Here's a snippet of my configuration classes: ```java @Configuration public class AppConfig { @Autowired private DataSource dataSource; // This causes issues @Bean public MyService myService() { return new MyService(dataSource); } } @Configuration public class DataConfig { @Bean public DataSource dataSource() { return new HikariDataSource(); } } ``` When I run the application, I receive the following behavior: ``` org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'dataSource' available ``` I've tried to ensure that both configuration classes are picked up by the component scan, and I've also experimented with using `@Primary` on the `DataSource` bean, but the scenario continues. Additionally, I’ve verified that the package names are correctly set and included in the component scan. I am using Spring Boot 2.5.4 and Hibernate 5.5.3. What could be causing this scenario, and how can I resolve it to correctly autowire the `dataSource` bean into my service? For context: I'm using Java on Linux. What's the best practice here?