Jsp与Ejb之间的通信

<%@ page import="javax.naming.*, javax.rmi.PortableRemoteObject, 
foo.AccountHome, foo.Account" %> 
<%!
//declare a "global" reference to an instance of the home interface of the session bean 
AccountHome accHome=null;

public void jspInit() ...{
//obtain an instance of the home interface 
InitialContext cntxt = new InitialContext( );
Object ref= cntxt.lookup("java:comp/env/ejb/AccountEJB");
accHome = (AccountHome)PortableRemoteObject.narrow(ref,AccountHome.class);
}
%>
<%
//instantiate the session bean 
Account acct = accHome.create();
//invoke the remote methods 
acct.doWhatever(...);
// etc etc... 
%>