facadebean.java

1.DATABASE目录下存放的是网上购书系统的数据库脚本文件以及相应的jdatastore数据库文件。 2.bookstoreejb目录下存放的工程对应于网上购书系统的ejb部分。 3.shop

package bookstoreejb;

import javax.jms.*;
import javax.ejb.*;
import java.util.*;
import javax.naming.*;
import java.util.Properties;
import javax.rmi.PortableRemoteObject;


public class facadeBean implements SessionBean {
  SessionContext sessionContext;

private BookItem bookItem=null;
private BookItemHome bookItemHome=null;
private Orderinfo orderInfo=null;
  private OrderinfoHome orderInfoHome=null;

  public void ejbCreate() throws CreateException {
    try{
    Context context = new InitialContext();
    Object ref = context.lookup("java:/comp/env/BookItem");
    bookItemHome= (BookItemHome) ref;
    ref=context.lookup("java:/comp/env/Orderinfo");
    orderInfoHome= (OrderinfoHome) ref;
    }catch(Exception e){e.printStackTrace();}

  }
  public void ejbRemove() {
    /**@todo Complete this method*/
  }
  public void ejbActivate() {
    try{
     Context context = new InitialContext();
     Object ref = context.lookup("java:/comp/env/BookItem");
     bookItemHome= (BookItemHome) ref;
     ref=context.lookup("java:/comp/env/Orderinfo");
     orderInfoHome= (OrderinfoHome) ref;
     }catch(Exception e){e.printStackTrace();}

  }
  public void ejbPassivate() {
    /**@todo Complete this method*/
  }
  public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
  }
public java.util.Collection getAllBook() {
Collection result=new Vector();
try{
Collection c1 = bookItemHome.findAllBook();
      System.out.println(c1.size());
    Object o1[]=c1.toArray();
for(int i=0;i<o1.length;i++)
{
 bookItem=(BookItem)o1[i];
result.add(new Book(bookItem.getBookname(),bookItem.getAuthor(),bookItem.getPrice().floatValue()));
}
}catch(Exception e){e.printStackTrace();}
return result;
}

 public Object getBookByName(String bookName) {
    try{
      bookItem = (BookItem) bookItemHome.findByPrimaryKey(bookName);
    }catch(Exception e){e.printStackTrace();}
    return new Book(bookItem.getBookname(),bookItem.getAuthor(),bookItem.getPrice().floatValue());
  }
  public void sendMessage(Order order) {
    try{
     QueueSender queueSender = null;
   Context ctx=getInitialContext();
   QueueConnectionFactory qConFactory =
       (QueueConnectionFactory) ctx.lookup("weblogic.jms.ConnectionFactory");
   Queue messageQueue = (Queue)ctx.lookup("bookstorequeue");
   QueueConnection qCon=qConFactory.createQueueConnection();
   QueueSession session = qCon.createQueueSession(false,Session.AUTO_ACKNOWLEDGE );
   queueSender=session.createSender(messageQueue);
   Message objMessage=session.createObjectMessage(order);
   queueSender.send(objMessage);
   if (queueSender != null) {
     queueSender.close();
   }
   if(qCon!=null) {
     qCon.close();
   }

   }catch(Exception e){e.printStackTrace();}

    /**@todo Complete this method*/
  }
  public java.util.Collection getAllOrder() {
    Collection result=new Vector();
   try{
 Collection c1 = orderInfoHome.findAllOrder();
     Object o1[]=c1.toArray();
 for(int i=0;i<o1.length;i++)
 {
  orderInfo=(Orderinfo)o1[i];
 result.add(new Order(orderInfo.getOrderid(),orderInfo.getCustname(),orderInfo.getAddress(),orderInfo.getEMail(),orderInfo.getBooklist(),orderInfo.getPrice().floatValue()));
 }
 }catch(Exception e){e.printStackTrace();}
 return result;

  }
  private  Context getInitialContext() throws Exception {
      String url = "t3://localhost:7001";
      String user = "system";
      String password = "security";
      Properties properties = null;
      try {
        properties = new Properties();
        properties.put(Context.INITIAL_CONTEXT_FACTORY,   "weblogic.jndi.WLInitialContextFactory");
        properties.put(Context.PROVIDER_URL, url);
        if (user != null) {
          properties.put(Context.SECURITY_PRINCIPAL, user);
          properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);
        }
        return new InitialContext(properties);
      }
      catch(Exception e) {
        throw e;
      }
    }
  public void deleteOrder(String orderid) {
    try{
      orderInfoHome.remove(orderid);
    }catch(Exception e){e.printStackTrace();}
    /**@todo Complete this method*/
  }

}