Dynamic Proxy

package proxy;import java.lang.reflect.InvocationHandler;import java.lang.reflect.Method;import java.lang.reflect.Proxy;public class DProxy {public interface Subject {void request(String param);void response(String param);}public static class RealSubject implements Subject{public void request(String param){System.out.println("This message is from RealSubject.");}public void response(String param){System.out.println("This message is response from RealSubject.");}}public static class RealSubject2 implements Subject{public void request(String param){System.out.println("This message is from RealSubject2:"+param);}public void response(String param){System.out.println("This message is response from RealSubject2.");}}public static class AnotherSubject{public void request(String param){System.out.println("This message is from AnotherSubject:"+param);}public void response(String param){System.out.println("This message is response from AnotherSubject."+param);}}public static class DynamicSubject implements InvocationHandler{private Object object;public DynamicSubject(Object o){this.object=o;}public Object invoke(Object proxy,Method method,Object[] args) throws Throwable{System.out.println("Dynamic Proxy's Method:"+method.getName()+" "+method.getDeclaringClass());//System.out.println("Args:"+(String)args[0]);System.out.println(proxy.getClass().getName());method.invoke(object, args);return null;}}/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubObject real = new RealSubject();//System.out.println(real);InvocationHandler handler=new DynamicSubject(real);Object proxyed = Proxy.newProxyInstance(real.getClass().getClassLoader(), real.getClass().getInterfaces(), handler);//System.out.println(proxyed);if(proxyed instanceof Subject){Subject subProxy = (Subject)proxyed;subProxy.request(null);subProxy.response("response1");}Object real2 = new RealSubject2();handler=new DynamicSubject(real2);proxyed = Proxy.newProxyInstance(real2.getClass().getClassLoader(), real2.getClass().getInterfaces(), handler);if(proxyed instanceof Subject){Subject subProxy = (Subject)proxyed;subProxy.request("Prameter2");subProxy.response("response2");}}}