Spring: service component return null in controller

Question

Hi I am new at spring and hibernate and i tried to create a project. I have researched and applied some techniques but i coulnt solve a problem. When I tried to access a service component in a controller, it returns null. Will it be about my missing configuration in spring? Please help me to solve the problem... thanks in advance..

UserController file:

@Controller
public class UserController {

    private UserService userService;

    @RequestMapping(value = "/login", method = RequestMethod.POST)
    public String loginChk(ModelMap model, WebRequest req) {

        User u = userService.getByEmailPwd(email, pwd);
       /* ........ */       

        return "login";

    }
}


@Service("userService")    
public class UserServiceImp extends GenericManagerImp<User> implements  UserService 
{

    @Autowired
    UserDao userDao;

    public void setUserDao(UserDao userDao) {
        this.userDao = userDao;
    }

    @Autowired
    public UserServiceImp(UserDao userDao) {
        super(userDao);
        this.userDao = userDao;
    }

    public User getByEmailPwd(String email, String pwd) {

        return userDao.getByEmailPwd(email, pwd);
    }
}

IT worked thank you very very veryyy mcuh i was goingto be crazy :) — fabio_88
– fabio_88, Commented Jun 12, 2014 at 12:16
I have added this commant as Answer feel free to upvote or accept thsi. — Jens
– Jens, Commented Jun 12, 2014 at 12:17

Jens · Accepted Answer · 2014-06-12 12:17:19Z

1

Add @Autowired over the property

answered Jun 12, 2014 at 12:17

Jens

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15 Comments

Jens Over a year ago

Can you add the whole stacktrace to your question please?

fabio_88 Over a year ago

Unfortunatelly i counld not beacuse of my status on stackoverflow.com I am a new user so I count send eevrthing :(

fabio_88 Over a year ago

sory to send the stacktrace by this way

Jens Over a year ago

You have to add a default constructor to your bean. public UserServiceImp(){}

fabio_88 Over a year ago

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.article.dao.GenericDaoImp.setSessionFactory(org.hibernate.SessionFactory); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}

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