请教如何在JBuilder8下编译ejb？

[wanderfellow]

我写了一个EJB测试类，类的源码如下：
package presence;
import javax.ejb.EJBHome;
import javax.ejb.CreateException;
import java.rmi.RemoteException;

public interface IRemotePresenceManagerHome extends EJBHome
{
public static final String JNDI_NAME = "PresenceManagerBean_Remote";
public IRemotePresenceManager create() throws CreateException,RemoteException;
}
在JBuilder8下编译出错，错误为：

"IRemotePresenceManagerHome.java": Error #: 302 : cannot access class javax.ejb.EJBHome; java.io.IOException: class not found: class javax.ejb.EJBHome at line 8, column 18
"IRemotePresenceManagerHome.java": Error #: 302 : cannot access class javax.ejb.CreateException; java.io.IOException: class not found: class javax.ejb.CreateException at line 9, column 18
"IRemotePresenceManagerHome.java": Error #: 300 : class EJBHome not found in interface presence.IRemotePresenceManagerHome at line 12, column 53

请教这是怎么回事？为什么找不到EJB包？

[orant]

你去查一下F1的帮助就好了