package proxy.AOPByDynamicProxy;

import java.lang.reflect.InvocationHandler;

import java.lang.reflect.Method;

import java.util.Arrays;

public class ProxyHandler implements InvocationHandler {

static String beforeMethod = "";

static String afterMethod = "";

private Person receiverObject;

public ProxyHandler(Person object){

this.receiverObject = object;

}

@Override

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {

//处理before方法

if(beforeMethod!=null&&beforeMethod.length()>0){

ClassLoader cl = ProxyHandler.class.getClassLoader();

Class<?> c = cl.loadClass(receiverObject.getClass().getName());

Method m=c.getMethod(beforeMethod);

Object obj = c.newInstance();

m.invoke(obj);

}

//处理目标方法

Object result = method.invoke(receiverObject, args);

//处理after方法

if(afterMethod!=null&&afterMethod.length()>0){

method.invoke(receiverObject, args);

ClassLoader cl = ProxyHandler.class.getClassLoader();

Class<?> c = cl.loadClass(receiverObject.getClass().getName());

Method m=c.getMethod(afterMethod);

Object obj = c.newInstance();

m.invoke(obj);

}

return result;

}

}