Spring3.0 MVC/Hibernate/HibernateDaoSupport集成帮助

Question

映射

DAO

public interface SigninDAO{
        public List<DataObject> getList();
}

public class SigninDAOImpl extends HibernateDaoSupport {
         public List<T> getList() {
  return (getHibernateTemplate().find("from " + dataClass.getName() + " x"));
 }
}

控制器

@Controller
@RequestMapping("/signin.html")
public class Signin {

 private SigninDAO signinDAO;
 Signin(){ 
 }

 public void setSigninDAO(SigninDAO signinDAO) {
  this.signinDAO = signinDAO;
 }

 @RequestMapping(method=RequestMethod.POST)
 public String processSubmit(@ModelAttribute("signinRequest") SigninRequest signinRequest,
   BindingResult result, SessionStatus status) {

  List<Merchant> merchant = signinDAO.getList();

   return "index";

 }

}

当我的登录表单被发布时 processSubmit 方法被调用并且我在这里得到空指针异常List<Merchant> merchant = signinDAO.getList();

看起来setSigninDAO() 方法没有映射到这个请求？我如何映射它？ 在这种情况下如何使用 multiactioncontroller？

Answer 1

你需要用@Autowired注释你的依赖设置方法：

@Autowired 
public void setSigninDAO(SigninDAO signinDAO) {   
    this.signinDAO = signinDAO;  
}

另请参阅：

• 3.9 Annotation-based container configuration