Jdk代理

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
public 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("\r\n jdk代理之前");
        Object invoke = method.invoke(target, args);
        System.out.println("\r\n jdk代理之后");
        return invoke;
    }
}
 public static void main(String[] args) {
//        System.setProperty("sun.misc.ProxyGenerator.saveGeneratedFiles", "true");
        OrderService orderService = new OrderService();
        JdkProxy proxy = new JdkProxy(orderService);
        Class<?> clazz = orderService.getClass();
        IOrderService service = (IOrderService) Proxy.newProxyInstance(clazz.getClassLoader(), clazz.getInterfaces(), proxy);
        service.doAdd(123456);
    }