1 前篇基于xml的實現,這篇是基于代碼實現,需要的jar包和前篇一樣

2 Hello.java 代碼

package aop.aop;public interface Hello {public void sayHello(); }
3 HelloImpl.java

package aop.aop;public class HelloImpl implements Hello {public void sayHello() {System.out.println("hello");}}
4 ?MethodBeforeAdvice.java

package aop.aop;import java.lang.reflect.Method;import org.springframework.aop.MethodBeforeAdvice;public class BeforAdvice implements MethodBeforeAdvice {public void before(Method arg0, Object[] arg1, Object arg2)throws Throwable {System.out.println("before");}}

5 ?Test.java

package aop.aop;import org.springframework.aop.framework.ProxyFactory;public class Test {public static void main(String[] args) {//初始化類Hello hello = new HelloImpl();BeforAdvice beforAdvice= new BeforAdvice();//代理類組裝對象ProxyFactory ps = new ProxyFactory();ps.setTarget(hello);ps.addAdvice(beforAdvice);//獲取對象Hello h = (Hello)ps.getProxy();h.sayHello();}}

6 ?輸出結果

before
hello

總結

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