静态代理动态代理以及aop

静态代理和动态代理

//静态代理interface SubClass{	void action();}class SubClasss implements SubClass{	public void action(){		System.out.PRintln("执行action");	}}class Proxy1 implements SubClass{	SubClasss s;	public Proxy1(SubClasss s){		this.s=s;	}	@Override	public void action() {		System.out.println("代理类执行");		s.action();	}	}public class ProxyTest {	public static void main(String[] args) {		SubClass s = new Proxy1(new SubClasss());		s.action();		//动态代理		Protest p = new Protest();		Object o =p.blind(s);		SubClass ss = (SubClass) o;		ss.action();		Childclass c = new Childclass();		ParentClass pa =(ParentClass) p.blind(c);		pa.action();	}}//动态代理interface ParentClass{	void action();}class Childclass implements ParentClass{	@Override	public void action() {		System.out.println("执行childclass的action方法");	}}class Protest implements InvocationHandler{	Object obj;	public Object blind(Object obj){		this.obj=obj;		return Proxy.newProxyInstance(obj.getClass().getClassLoader(), 				obj.getClass().getInterfaces(), this);	}	@Override	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {		System.out.println("invoke方法");		Object returnVal = method.invoke(obj, args);		return returnVal;	}	}aop
interface Parent{	void fly();	void action();}class Child implements Parent{	@Override	public void fly() {		System.out.println("i believe i can fly");	}	@Override	public void action() {		System.out.println("执行action");	}	}class ChildUtil{	void method1(){		System.out.println("=======方法一=======");	}	void method2(){		System.out.println("=======方法二=======");	}}class MyInvocation implements InvocationHandler{	Object obj;	void setObj(Object obj){		this.obj=obj;	}	@Override	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {		ChildUtil child = new ChildUtil();		child.method1();		Object o = method.invoke(obj, args);		child.method2();		return o;	}	}class Protest2{	public static Object getProxyInstance(Object obj){		MyInvocation m = new MyInvocation();		m.setObj(obj);		return Proxy.newProxyInstance(obj.getClass().getClassLoader(), 				obj.getClass().getInterfaces(), m);					}}public class AopTest {	public static void main(String[] args) {		Child c = new Child();		Object obj = Protest2.getProxyInstance(c);		Parent p = (Parent) obj;		p.fly();		p.action();	}}