checkerclient.java

卡内基梅隆大学软件工程课件,很全面

/*
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */

import java.util.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;

public class CheckerClient {

   public static void main(String[] args) {
       try {
           Context initial = new InitialContext();
           Object objref = initial.lookup("java:comp/env/ejb/SimpleChecker");

           CheckerHome home = 
               (CheckerHome)PortableRemoteObject.narrow(objref, 
                                            CheckerHome.class);

           Checker checker = home.create("Duke");

           double discount = checker.applyDiscount(6000.00);
           System.out.println("discount = " + String.valueOf(discount));

           System.exit(0);

       } catch (Exception ex) {
           System.err.println("Caught an unexpected exception!");
           ex.printStackTrace();
       }
   } 
}