【java标准库系列】java反射与动态代理

直接上源码。

动态代理

package com.jxdw.reflect;

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

interface Subject{
    public String say(String name,int age);
}

class RealSubject implements Subject{
    @Override
    public String say(String name, int age) {
        return name + " " + age;
    }
}

class MyInvocationHandler implements InvocationHandler{
    private Object object=null;
    public Object bind(Object object){
        this.object=object;
        return Proxy.newProxyInstance(object.getClass().getClassLoader(),object.getClass().getInterfaces(),this);
    }
    @Override
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        return method.invoke(this.object,args);
    }
}
public class ProxyHello {
    public static void main(String[] args) {
        MyInvocationHandler myInvocationHandler=new MyInvocationHandler();
        Subject realSubject=(Subject) myInvocationHandler.bind(new RealSubject());
        System.out.println("info:"+realSubject.say("xiaogang",20)+"\n");
    }
}