Autowiring problem in controller

[rachit mehra]

I am tiring to build a small application in spring 3.2.2.RELEASE but when i am tiring to inject the service layer object into controller class by @Autowired it create a some problem, here is the code

controller class BooksEntryController .java

@Controller
@RequestMapping(value = "/dashboard/*")
public class BooksEntryController {
	
	@Autowired
	private BookFormService bookFormService;
 /*List<Book> books;
	
	public BooksEntryController()
	{
		
		books=new ArrayList<Book>();
	}*/

	@RequestMapping(value = "/booksentryform", method = RequestMethod.GET)
	public ModelAndView viewBooksEntryForm(Model model) {
		model.addAttribute("test", new Book());
		return new ModelAndView("bookregistrationform");
	}

	@RequestMapping(value = "/addbookdetails", method = RequestMethod.POST)
	public String addBook(@ModelAttribute("test") Book book, Model model) {

		if (book != null) {
			bookFormService.addBooks(book);
			return "bookaddsuccessfully";

		} else {
			throw new NullPointerException();
		}

	}

}

service interface

public interface BookFormService {
	
	
	void addBooks(Book book);
	
	

}

service implementation class

@Service
public class BookFormServiceImp implements BookFormService {
	
	@Autowired
	private BookFormDao bookFormDao;

	public void addBooks(Book book) {
		bookFormDao.addBook(book);
		// TODO Auto-generated method stub
		
	}

}

logs of the error

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'booksEntryController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bms.service.BookFormService com.bms.controller.BooksEntryController.bookFormService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.bms.service.BookFormService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

can any one suggest me how to resolve this injection problem?

[Ameet Sagar]

This might help...
have you added @Repository("bookFormDao") in your BookFormDao class???

[Himanshu bisht bebo]

Please try to put a defalult constructor in your @service class , It may solve your problem

[Ameet Sagar]

This might help...
have you added @Repository("bookFormDao") in your BookFormDao implementation class(assuming that BookFormDao is your interface)???

[Bill Gorder]

Do you have component scan properly scanning the correct packages? It seems that bean is not being found and created.

[rachit mehra]

Actually I am using the hibernate 4.

Now the problem has resolved

I have changed "hibernate3.annotation.AnnotationSessionFactoryBean" to "hibernate4.LocalSessionFactoryBean "

From:

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

To:

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">