Java代码
- import java.lang.reflect.InvocationHandler ;
- import java.lang.reflect.Proxy ;
- import java.lang.reflect.Method ;
- interface Subject{
- public String say(String name,int age) ; // 定义抽象方法say
- }
- class RealSubject implements Subject{ // 实现接口
- public String say(String name,int age){
- return "姓名：" + name + "，年龄：" + age ;
- }
- };
- class MyInvocationHandler implements InvocationHandler{
- private Object obj ;
- public Object bind(Object obj){
- this.obj = obj ; // 真实主题类
- return Proxy.newProxyInstance(obj.getClass().getClassLoader(),obj.getClass().getInterfaces(),this) ;
- }
- public Object invoke(Object proxy,Method method,Object[] args) throws Throwable{
- Object temp = method.invoke(this.obj,args) ; // 调用方法
- return temp ;
- }
- };
- public class DynaProxyDemo{
- public static void main(String args[]){
- Subject sub = (Subject)new MyInvocationHandler().bind(new RealSubject()) ;
- String info = sub.say("李兴华",30) ;
- System.out.println(info) ;
- }
- };
