Java动态代理语法

public static Object newProxyInstance(ClassLoader loader, Class<?>[] interfaces, InvocationHandler h)

//抽象主题
interface AbstractSubject
{
    void request();
}
//真实主题
class RealSubject implements AbstractSubject
{
    public void request()
    {
        System.out.println("访问真实主题方法...");
    }
}
//真实主题
class RealSubject1 implements AbstractSubject
{
    public void request()
    {
        System.out.println("访问真实主题方法1...");
    }
}
//动态代理类
class DynamicProxy implements InvocationHandler {
    private Object object;
    public DynamicProxy(Object object) {
        this.object = object;
    }
    @Override
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        before();
        Object result = method.invoke(object, args);
        after();
        return result;
    }
    private void before() {
        System.out.println("hello!");
    }
    private void after() {
        System.out.println("bye!");
    }
}
//测试类
public class TestDynamicProxyPattern {
    public static void main(String[] args) {
        AbstractSubject abstractSubject = new RealSubject();
        DynamicProxy dynamicProxy = new DynamicProxy(abstractSubject);
        Proxy.newProxyInstance(abstractSubject.getClass().getClassLoader(), abstractSubject.getClass().getInterfaces() , dynamicProxy);
        abstractProxy.request();
    }
}