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How do I enable annotation based auto wiring in Spring Framework?

To enable annotation based wiring, @Autowired, org.springframework.beans .factory.annotation. AutowiredAnnotation BeanPostProcessor need to be registered and it could be achieved in 2 ways.

  • Include <context:annotation-config> in bean configuration file. 
    <beans>
...
    <context:annotation-config />
...
</beans>

  • Include AutowiredAnnotation BeanPostProcessor directly in bean configuration file.

    <beans>
    <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
</beans>

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