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873天前interface human{ |
void info(); |
void fly(); |
|
} |
class SuperMan implements human{ |
public void info(){ |
System.out.println("我是超人"); |
} |
public void fly(){ |
System.out.println("I can fly"); |
} |
} |
class HumanUtil{ |
public void method1(){ |
System.out.println("=========方法一============="); |
} |
|
public void method2(){ |
System.out.println("=========方法二============="); |
} |
} |
class MyInvocationHandler implements InvocationHandler{ |
//被代理对象声明 |
Object obj; |
|
public void setObject(Object obj){ |
this.obj=obj; |
} |
@Override |
public Object invoke(Object proxy, Method method, Object[] args) |
throws Throwable { |
HumanUtil h = new HumanUtil(); |
h.method1(); |
Object returlVal=method.invoke(obj, args); |
h.method2(); |
return returlVal; |
} |
|
} |
|
class MyProxy{ |
//动态的创建一个代理类对象 |
public static Object getProxyInstance(Object obj){ |
MyInvocationHandler handler = new MyInvocationHandler(); |
handler.setObject(obj); |
return Proxy.newProxyInstance(obj.getClass().getClassLoader(), obj.getClass().getInterfaces(), handler); |
} |
} |
public class testAop { |
|
public static void main(String[] args){ |
SuperMan man= new SuperMan(); |
Object obj=MyProxy.getProxyInstance(man); |
|
human hu=(human)obj; |
hu.info(); |
System.out.println(); |
hu.fly(); |
|
} |
} |
