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package guestbook.maxuan.ejb.control;

import javax.ejb.*;
import java.util.*;
import java.rmi.*;
import guestbook.maxuan.ejb.entity.value.*;

public interface BookControl extends javax.ejb.EJBObject {
  public void savely(BookValue value) throws RemoteException;
  public ArrayList getLyList() throws RemoteException;
}

package guestbook.maxuan.ejb.control;

import javax.ejb.*;
import java.util.*;
import guestbook.maxuan.ejb.entity.*;
import guestbook.maxuan.ejb.entity.value.*;

public class BookControlBean implements SessionBean {
  SessionContext sessionContext;
  public void ejbCreate() throws CreateException {
    /**@todo Complete this method*/
  }
  public void ejbRemove() {
    /**@todo Complete this method*/
  }
  public void ejbActivate() {
    /**@todo Complete this method*/
  }
  public void ejbPassivate() {
    /**@todo Complete this method*/
  }
  public void setSessionContext(SessionContext sessionContext) {
    this.sessionContext = sessionContext;
  }
  public void savely(BookValue value) {
  Book book=null;
  try {
      javax.naming.Context context = 

new javax.naming.InitialContext();
      BookHome bookHome= (BookHome)context.lookup("Book");
      if(value.getAction().equals("add")){
        book=bookHome.create(value);
      }else{
        try{
          book=bookHome.findByPrimaryKey(value.getName());
          book.setValue(value);
        }catch(FinderException fe){

        }
      }

    }catch (Exception ex) {
       throw new EJBException(ex);
    }
  }
  public ArrayList getLyList(){
   ArrayList LyList=new ArrayList();
   try {
     javax.naming.Context context = new 

javax.naming.InitialContext();
     BookHome bookHome= (BookHome)context.lookup("Book");
     Collection lyCntl =  bookHome.findAll();
     Iterator iterator = lyCntl.iterator();
     while(iterator.hasNext()){
       Book book = (Book) iterator.next();
       LyList.add(book.getValue());
     }
   }catch (Exception ex) {
      throw new EJBException(ex);
   }
   return LyList;
  }
}
BookControlHome的源代碼

package guestbook.maxuan.ejb.control;

import javax.ejb.*;
import java.util.*;
import java.rmi.*;

public interface BookControlHome extends javax.ejb.EJBHome {
  public BookControl create() throws CreateException, 

RemoteException;
}
這樣我們就完成了sessionBean的編寫，它操作實(shí)體Bean賦于value的值，

這里比上次的教程多了寫入的操作！

出處：藍(lán)色理想
責(zé)任編輯：藍(lán)色

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