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anxin587
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EJB stateful session bean Count Test

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这是根据精通ejb一书中的count stateful session bean所做,但是现在有一个问题就是这个sessionbean好像再执行过程中,没有被挂起 ,这样也就更加不存在什么激活了,ejbpassivate 和ejbactivate两个方法就没有被调用到,通过jboss控制传出来的信息,根本就不存在这两个方法的调用

大致代码如下所示:

本地接口countjava

package examples;
import javax.ejb.*;
import java.rmi.*;
public interface Count extends EJBObject
{
 public int count() throws RemoteException;
}

home接口

package examples;
import javax.ejb.*;
import java.rmi.*;
public interface CountHome extends EJBHome
{
 public Count create(int value) throws RemoteException, CreateException;
}

beanfangfa

package examples;
import javax.ejb.*;
import java.rmi.*;

public class CountBean implements SessionBean
{
 public int val;

 public int count()
 {
  System.out.println("count()....");
  return ++val;
 }

 public void ejbCreate(int val) throws CreateException
 {
  this.val=val;
  System.out.println("ejbCreate()");
 }

 public void ejbRemove()
 {
  System.out.println("ejbRemove()");
 }

 public void ejbActivate()
 {
  System.out.println("ejbActivate()...");
 }

 public void ejbPassivate()
 {
  System.out.println("ejbPassivate()");
 }

 public void setSessionContext(SessionContext ctx)
 {
  
 }


}

ejb jar

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE   ejb-jar   PUBLIC   "-//Sun   Microsystems,   Inc.//DTD   Enterprise   JavaBeans   2.0//EN"   "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<!--
<ejb-jar version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:msi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">-->
<ejb-jar>  
      <description>StatefulEJB</description>  
      <display-name>StatefulEJB</display-name>
<enterprise-beans>
 <session>
  <ejb-name>STATEFULEJB</ejb-name>
  <home>examples.CountHome</home>
  <remote>examples.Count</remote>
  <ejb-class>examples.CountBean</ejb-class>
  <session-type>Stateful</session-type>
  <transaction-type>Container</transaction-type>
 </session>
</enterprise-beans>
</ejb-jar>

client

import examples.*;
import java.util.*;
import javax.naming.Context;
import javax.naming.InitialContext;
/*
 this class used for test Statefulejb STATEFULEJB
*/
public class CountClient
{

 public static void main(String[] args) throws Exception
 {
  Properties props=new Properties();

  props.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
  props.setProperty("java.naming.provider.url","jnp://192.168.52.136:1099");

  Context ctx=new InitialContext(props);
  
  CountHome home=(CountHome)javax.rmi.PortableRemoteObject.narrow(ctx.lookup("STATEFULEJB"),CountHome.class);

  Count[] count=new Count[3];
  
  int countval=1;
  System.out.println("Instantiating bean.......");
  for(int i=0;i<count.length;i++)
  {
   count[i]=home.create(countval);

   countval=count[i].count();
   System.out.println(countval);
   
   Thread.sleep(5000);
  }

  System.out.println("call count on beans.....");
  for(int i=0;i<3;i++)
  {
   countval=count[i].count();
   System.out.println(countval);

   Thread.sleep(5000);
  }

  // remove these beans
  for(int i=0;i<3;i++)
  {
   count[i].remove();
  }
 }
}

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