模式笔记： 动态代理

代理在生活比较常见， 类似于代购。

 public static void main(String[] args) {

        BuyOnOther buyOnOther = (BuyOnOther) Proxy.newProxyInstance(BuyOnOther.class.getClassLoader(), new Class<?>[]{BuyOnOther.class}, (proxy, method, args1) -> {

            String name = (String) args1[0];
            Integer count = (Integer) args1[1];
            System.out.println("参数: " + name + "," + count);
            System.out.println("方法名: " + method.getName());

            return null;
        });
        buyOnOther.buy("面膜", 5);
    }

    interface BuyOnOther {
        void buy(String name, int count);
    }

输出结果：

参数: 面膜,5
方法名: buy