proxyfactory.java

来自「《java网络编程精解》的源代码」· Java 代码 · 共 36 行

package proxy1;
import java.lang.reflect.*;
public class ProxyFactory {
  public static Object getProxy(final Class classType,final String host,final int port){
    InvocationHandler handler=new InvocationHandler(){
      public Object invoke(Object proxy,Method method,Object args[])
                                                       throws Exception{
        Connector connector=null;
        try{
          connector=new Connector(host,port);
          Call call=new Call(classType.getName(),
              method.getName(),method.getParameterTypes(),args); 
          connector.send(call);
          call=(Call)connector.receive();
          Object result=call.getResult();
          if(result instanceof Throwable)
            throw new RemoteException((Throwable)result);
          else
            return result;
        }finally{if(connector!=null)connector.close();}
      }
    };

    return 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                *
 ***************************************************/