sessionbeanfactory.java

人财务记账系统 非常完整的整个系统设计

package personal_payout_manage.utils;

import javax.naming.Context;
import javax.rmi.PortableRemoteObject;
import personal_payout_manage.ejbs.PayoutSession;
import personal_payout_manage.ejbs.PayoutSessionHome;

public class SessionBeanFactory {
  //会话Bean的远程接口
  private static PayoutSession   payoutSessionBean = null;
  //静态方法，获得beanJndiName指定的会话Bean远程接口
   public static  PayoutSession getPayoutSessionBean(String beanJndiName) {
       if (payoutSessionBean != null)
           return payoutSessionBean;

       try {
           Context ctx = BuilderContext.getWeblogicServerInitialContext();
           Object ref = ctx.lookup(beanJndiName);
           //look up jndi name and cast to Home interface
           PayoutSessionHome payoutSessionHome = (PayoutSessionHome)
                                                     PortableRemoteObject.
                                                     narrow(ref,
                   PayoutSessionHome.class);
          payoutSessionBean = payoutSessionHome.create();
          return payoutSessionBean;
       } catch (Exception ex) {
           ex.printStackTrace();
           return null;
       }
   }
}