SpringAOP学习笔记（3）

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;

interface Host{
	void maifang();
}

class Kg implements Host{

	@Override
	public void maifang() {
		System.out.println("我是kg，我终于买房了！");
	}
	
}

//中介（代理）
class Proxy implements Host{

	//代理对象
	private Kg kg;
	
	public Proxy(Kg kg){
		this.kg = kg;
	}
	@Override
	public void maifang() {
		System.out.println("我是中介，你买房开始交给我了！");
		kg.maifang();
		System.out.println("我是中介，你买房结束了！");
	}
	
}

//jdk动态代理
class JdkProxy implements InvocationHandler{

	private Object target;
	
	public JdkProxy(Object target){
		this.target=target;
	}
	
	@Override
	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
		System.out.println("我是中介，你买房开始交给我了！!!");
		Object invoke = method.invoke(target, args);
		System.out.println("我是中介，你买房结束了！！！！");
		return invoke;
	}
	
}

public class Test001 {

	public static void main(String[] args) {
//		Host host = new Proxy(new Kg());
//		host.maifang();
		Kg kg= new Kg();
		JdkProxy jdkProxy = new JdkProxy(kg);
		Host host = (Host) java.lang.reflect.Proxy.newProxyInstance(kg.getClass().getClassLoader(), kg.getClass().getInterfaces(), jdkProxy);
		host.maifang();
		
	}
}