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@Autowired's magic however can only be used on Spring managed beans (instantiated objects that are managed by Spring). However, there 's are many situations where you might need access to a Spring bean from non-Spring manged classes and POJO's (Plain Old Java Objects).
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package com.adfaspace.jay.app;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class SpringContext implements ApplicationContextAware {
private static ApplicationContext context;
/**
* Returns the Spring managed bean instance of the given class type (if it exists).
* Returns null otherwise.
* @param beanClass
* @return
*/
public static <T extends Object> T getBean(Class<T> beanClass) {
return context.getBean(beanClass);
}
@Override
public void setApplicationContext(ApplicationContext context) throws BeansException {
// store ApplicationContext reference to access required beans later on
SpringContext.context = context;
}
} |
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MyBeanClass myBeanClassmyBeanInstance = SpringContext.getBean(MyBeanClass.class); |
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