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I have a SpringBoot main application, as well as a separate Maven module project that compiles as a separate Jar. The module has a Spring config class annotated with @Configuration, which I want to get loaded, when the main app loads.
Apparently, this does not happen out of the box (by just including the module to the main app). What else do I need to do, to get the module configuration class also get loaded by the main app?
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One configuration class can import any number of other configuration classes, and their bean definitions will be processed as if locally defined.
JavaConfigApplicationContext provides direct access to the beans defined by @Configuration -annotated classes.
You should be able to autowire them: @Configuration public class Conf2 { @Autowired Conf1 conf1; ... } Alternatively, you can autowire beans rather than configurations: @Configuration public class Conf2 { @Autowired Foo foo; ... }
Spring @Configuration annotation is part of the spring core framework. Spring Configuration annotation indicates that the class has @Bean definition methods. So Spring container can process the class and generate Spring Beans to be used in the application.
The easiest way is to scan the package that the @Configuration class is in.
@ComponentScan("com.acme.otherJar.config")
or to just load it as a spring bean:
@Bean
public MyConfig myConfig() {
MyConfig myConfig = new MyConfig ();
return myConfig;
}
Where MyConfig is something like:
@Configuration
public class MyConfig {
// various @Bean definitions ...
}
See docs
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