本文主要向大家介绍了【云计算】代理对象的实现，通过具体的内容向大家展现，希望对大家学习云计算有所帮助。

package proxy;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class ProxyTestMain {
    public static void main(String[] args) {
        //创建真正的对象
        MyBusiness obj = new MyBusinessImpl();      
        //重写method1的实现 ---> 不修改源码
        //生成真正对象的代理对象
        /*
        Proxy.newProxyInstance(loader, 类加载器
                               interfaces, 真正对象实现的接口
                               h ) InvocationHandler 表示客户端如何调用代理对象
        */      
        MyBusiness proxyObj = (MyBusiness) Proxy.newProxyInstance(ProxyTestMain.class.getClassLoader(), 
                                                     obj.getClass().getInterfaces(), 
                                                     new InvocationHandler() {

                                        @Override
                                        public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                                            // 客户端的一次调用
                                            /*
                                             * method: 客户端调用方法名
                                             * args  : 方法的参数
                                             */
                                            if(method.getName().equals("method1")){
                                                //重写
                                                System.out.println("******重写了method1*********");
                                                return null;
                                            }else{
                                                //不感兴趣的方法 直接调用真正的对象完成
                                                return method.invoke(obj, args);
                                            }
                                        }
                    });

        //通过代理对象调用 method1  method2
        proxyObj.method1();
        proxyObj.method2();
    }

}

package proxy;

public interface MyBusiness {

    public void method1();

    public void method2();
}

package proxy;

public class MyBusinessImpl implements MyBusiness {

    @Override
    public void method1() {
        System.out.println("method1");
    }

    @Override
    public void method2() {
        System.out.println("method2");
    }

}

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