Question

我有一个带有JSF 2.2，Spring 4，ang Hibernate Integration的Web应用程序。当我尝试在ManagedBean中使用ManagedProperty注入Spring Service时，我有一个Nullpointer异常：

 @ManagedBean
 @ViewScoped
 public class SuperAdminNuevasAppBean {
 @ManagedProperty(value = "#{appService}")
    private AppService appService;
 //Code
}

AppService是一个界面：

public interface AppService {

public abstract void persist(App transientInstance);

public abstract void remove(App persistentInstance);

public abstract App merge(App detachedInstance);
//
}

这是实施：

@Service
public class AppServiceImpl implements AppService {

@Autowired
private AppDAO appDAO;

@Autowired
private EdificioDAO edificioDAO;

@Override
@Transactional
public void persist(App transientInstance) {
    // TODO Auto-generated method stub
    appDAO.persist(transientInstance);
}
 //More code...

如果我把

@ManagedProperty(value = "#{appServiceImpl}")
private AppService appService;

一切正常。我有getter和setter，faces-config中的org.springframework.web.jsf.el.SpringBeanFacesELResolver，web.xml中的org.springframework.web.context.ContextLoaderListener和org.springframework.web.context.request.RequestContextListener 。这是正确的行为吗？

无法使用ManagedProperty注入Spring的服务

0 个答案: