Define a special interface
public interface ServiceWebSecurityConfigurer {
void configure(HttpSecurity http) throws Exception;
}
Then have just one ConfigurerAdapter:
public class MyConfigurerAdapter extends WebSecurityConfigurerAdapter {
@Autowired(required = false)
ServiceWebSecurityConfigurer serviceSecConfig;
public void configure(HttpSecurity http) throws Exception {
http.authorizeRequests(). // whatever
if (serviceSecConfig != null) serviceSecConfig.configure(http);
http.authorizeRequests(). // whatever
}
}
and then just implement ServiceWebSecurityConfigurer elsewhere when needed. There can be multiple implementations as well, just autowire them as list and iterate and use them all in your main configuration.