对ejb中session bean的见解

来源：作者：cchheenn… 出处：巧巧读书 2008-04-02 进入讨论组

    }//自己的商务方法
    }//class sailorsy
    以上这些是EJB必需的回调方法，我们可以在里面加入自己的方法，加入自己的商务逻辑。
    B.Home 接口: sailorsyHome

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

    public interface sailorsyHome extends EJBHome {
    public sailorsyRemote create() throws RemoteException, CreateException;
    }
    C. Remote接口：sailorsyRemote
    import java.rmi.*;
    import javax.ejb.*;

    public interface sailorsyRemote extends EJBObject {
    public java.lang.String showname() throws RemoteException;
    }

三.调用会话 Bean：sailorsyTestClient1

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

public class sailorsyTestClient1 {
private sailorsyHome sailorsyHomeObject = null;

//Construct the EJB test client
public sailorsyTestClient1() {
try {
//以下是客户端使用JNDI定位Home对象。
Context ctx = new InitialContext();

//look up jndi name
Object ref = ctx.lookup("sailorsy");

//cast to Home interface
sailorsyHomeObject = (sailorsyHome) PortableRemoteObject.narrow(ref, sailorsyHome.class);

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

//----------------------------------------------------------------------------
// Utility Methods
//----------------------------------------------------------------------------

public sailorsyHome getHome() {
return sailorsyHomeObject;
}
//Main method

public static void main(String[] args) throws Exception{
sailorsyTestClient1 client = new sailorsyTestClient1();
sailorsyRemote sr=client.getHome() .create() ;
String s=sr.showname() ;
system.out.print(s);
// Use the getHome() method of the client object to call Home interface
// methods that will return a Remote interface reference. Then
// use that Remote interface reference to access the EJB.
}
}

以上的EJB在win2000+jbuilder5/jbuilder6+BAS4.5经过测试。　

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