JDKProxy JDK动态代理

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

public class JDKProxy implements InvocationHandler {

//目标类
    private Object targetObject;


    public Object newProxyInstance(Object targetObject){
        this.targetObject = targetObject;

//绑定
    　　 Proxy.newProxyInstance(targetObject.getClass().getClassLoader(), targetObject.getClass().getInterfaces(),this);
　　　　　return targetObject;

    }

    @Override
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        Object result = null;

        try {

            result = method.invoke(targetObject,args);

        }catch (Exception e){
            e.printStackTrace();
        }

        return result;
    }
}

public class ProxyTest {

    public static void main(String[] args) {

        JDKProxy jdkProxy = new JDKProxy();
        PayService payService = (PayService)jdkProxy.newProxyInstance(new PayServiceImpl());
        payService.callback("sadwasc");
    }
}