helloserviceproxyfactory.java

《java网络编程精解》的源代码

package proxy;
import java.lang.reflect.*;
public class HelloServiceProxyFactory {
  public static HelloService getHelloServiceProxy(final HelloService helloService){
    InvocationHandler handler=new InvocationHandler(){
      public Object invoke(Object proxy,Method method,Object args[])throws Exception{
        System.out.println("before calling "+method);
        Object result=method.invoke(helloService,args);
        System.out.println("after calling "+method);
        return result;
      }
  };

    Class classType=HelloService.class;
    return (HelloService)Proxy.newProxyInstance(classType.getClassLoader(),
                                          new Class[]{classType},
                                          handler);

  }
}


/****************************************************
 * 作者：孙卫琴                                     *
 * 来源：<<Java网络编程精解>>                       *
 * 技术支持网址：www.javathinker.org                *
 ***************************************************/