Develop EJBs from HelloWorld under WebSphere

First, ready to work

1, EJB container: WebSphere5.1.2

2. Development Tools: WSAD5.1

Second, develop the HelloWorld EJB program.

1, home interface

Package ljb.ejb.helloworld;

Import java.rmi.remoteexception;

Import javax.ejb.ejbhome;

Import javax.ejb.createException;

Public interface helloejbhome extends ejbhome {

HelloejBObject Create () THROWS CREATEXCEPTION, RemoteException;

}

2, EJB object interface

Package ljb.ejb.helloworld;

Import java.rmi.remoteexception;

Import javax.ejb.ejbobject;

Public interface helloejbobject extends ejbobject {

Public String HelloWorld () throws RemoteException;

}

3, bean

/ *

* HelloWorld EJB CREATED by Liaojingbin 2004-10-25

* /

Package ljb.ejb.helloworld;

Import javax.ejb. *;

/ **

* @Author LJB

* /

Public class hellobean implements sessionbean {

Private INT i = 0;

Public void ejbcreate () {}

Public void ejbremove () {}

Public void ejbactivate () {}

Public void ejbpassiVate () {}

Public void setsessionContext (sessionContext CTX) {}

Public String HelloWorld ()

{

Return New String ("HelloWorld");

}

}

4, use JSP to call EJB

<% @ PAGE

Language = "java"

ContentType = "text / html; charSet = GBK"

PageEncoding = "GBK"

Import = "ljb.ejb.helloWorld. *, javax.naming. *, javax.rmi. *"

%>