15. Configuration Classes
Spring Boot favors Java-based configuration. Although it is possible to use
SpringApplication with XML sources, we generally recommend that your primary source be a single
@Configuration class. Usually the class that defines the
main method is a good candidate as the primary
Many Spring configuration examples have been published on the Internet that use XML configuration. If possible, always try to use the equivalent Java-based configuration. Searching for
Enable* annotations can be a good starting point.
You need not put all your
@Configuration into a single class. The
@Import annotation can be used to import additional configuration classes. Alternatively, you can use
@ComponentScan to automatically pick up all Spring components, including
If you absolutely must use XML based configuration, we recommend that you still start with a
@Configuration class. You can then use an
@ImportResource annotation to load XML configuration files.