How to refer a bean declared in spring context xml from an annotated class spring

Example:

spring context xml

<beans>
<bean id="a" class="ClassA" />
</beans>

@Service public class Test {

@Resource InterfaceA ifcA;

}

public class ClassA implements InterfaceA { }

public interface InterfaceA { }

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I would like to know how I can refer to xml bean declared in xml from a java class that has annotations enabled.

One way I know would be get the context and then get the bean.

Please suggest.