版权声明：仅供学习交流使用 https://blog.csdn.net/drxRose/article/details/84841523
IntroductionInterceptor也是一个标记接口,其子类中有个便捷的实现类,即DelegatingIntroductionInterceptor.
说明,定义引入的实现类,也需要实现新增特性的接口.
目标对象类
package siye;
public class TargetObj
{
public void targetMeth()
{
System.out.println("target_object_method....");
}
}
新增特性接口
package siye;
public interface NewFeature
{
void featureMeth();
}
引入实现类
package siye;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.support.DelegatingIntroductionInterceptor;
public class IntroductionInterceptorImpl extends
DelegatingIntroductionInterceptor implements NewFeature
{// 实现引入接口的同时,也要实现新增特性的接口.
private static final long serialVersionUID =
-5595327221312353940L;
@Override
public Object invoke(MethodInvocation mi) throws Throwable
{
return super.invoke(mi);
}
@Override
public void featureMeth()
{
System.out.println("new_feature_method...");
}
}
测试基于代理的spring aop引入功能的测试类
package siye;
import org.aopalliance.aop.Advice;
import org.springframework.aop.framework.ProxyFactory;
public class UnitTest
{
public static void main(String[] args)
{
TargetObj targetObj = new TargetObj();
Advice adviceImpl = new IntroductionInterceptorImpl();
ProxyFactory proxy = new ProxyFactory();
// 设置cglib代理,否则无法对目标类进行动态代理.
proxy.setProxyTargetClass(true);
proxy.addAdvice(adviceImpl);
proxy.setTarget(targetObj);
TargetObj obj0 = (TargetObj) proxy.getProxy();
obj0.targetMeth();
NewFeature obj1 = (NewFeature) obj0;
obj1.featureMeth();
}
}