自定义Aware接口实现

结论： Aware接口的实现是依赖于BeanPostProcessor接口
示例：
创建一个RedisAware接口，此接口继承Aware接口，具体如下

import org.springframework.beans.factory.Aware;

public interface RedisAware extends Aware {
	void setRedis(String redis);
}

创建一个RedisAware接口的实现类

import org.springframework.stereotype.Component;

@Component
public class MyRedisAware implements RedisAware {

	private String redis;

	@Override
	public void setRedis(String redis) {
		// TODO Auto-generated method stub
		this.redis = redis;
		System.out.println("-----MyRedisAware----" + redis);
	}

}

创建一个用来处理RedisAware类型接口的BeanPostProcessor

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.stereotype.Component;

@Component
public class RedisAwareProcessor implements BeanPostProcessor {

	public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

		if (bean instanceof RedisAware) {
			System.out.println("-----RedisAwareProcessor-----");
			((RedisAware) bean).setRedis("myRedis");
		}
		return bean;
	}

}

至此，就能实现，MyRedisAware类中redis属性的自动赋值

要点还是，BeanPostProcessor的使用，完全可以不用Aware接口，可以自定义一个接口（AAA）,
然后在BeanPostPorcessor中检测bean是否实现了AAA接口即可对实现了AAA接口的类的属性进行制动赋值的功能