需要EJB帮助

Question

public void runTest() throws Exception { 
     InitialContext ctx = new InitialContext(); 
     ResourceManager bean = (ResourceManager) ctx.lookup("ejb/ResourceManagerJNDI"); 
     System.out.println(bean.DummyText()); 
} 

你好。所以我试图创建一个EJB应用程序，这是它的测试客户端。 JNDI查找是成功的，但调用“DummyText”方法时，我得到以下错误：

javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
    java.rmi.RemoteException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB; nested exception is: 
    javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB (...) 

这是bean类的样子：

@Stateless(name="ResourceManager", mappedName="ejb/ResourceManagerJNDI") 
@Remote 
@Local 
public class ResourceManagerBean implements ResourceManager 
{ 
    @EJB 
    private AccessDAO accessDAO; 
    @EJB 
    private ResourceDAO resourceDAO; 
    @EJB 
    private DepartmentDAO departmentDAO; 

    (list of methods) 
} 

任何意见，将不胜感激。谢谢。

Answer 1

这是我的第一个想法。 你应该有类似

@Remote 
public interface ResourceManagerSessionRemote { 

    (list of methods) 

} 

打破你的远程和本地接口出

@Stateless(name="ResourceManager", mappedName="ejb/ResourceManagerJNDI") 
public class ResourceManagerBean implements ResourceManagerSessionRemote 
{ 
    @EJB 
    private AccessDAO accessDAO; 
    @EJB 
    private ResourceDAO resourceDAO; 
    @EJB 
    private DepartmentDAO departmentDAO; 

    (list of methods) 
}