spring-知识小结之注解为属性赋值

<1>.本类中的属性赋值

public class UserServiceImpl implements UserService {

       //按照类别赋值
       // @Autowired  

        //按照名称赋值
       // @Autowired
       // @Qualifier("userDao")

       //按照名字赋值
	@Resource
	private UserDao userDao;

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

<2>.为父类属性赋值

public class UserDaoImpl extends HibernateDaoSupport  implements UserDao {

        /*
          sessionFactory的get,set方法在父类中为final,不可重写
      */
       @Autowired
	public void setMySessionFactory(SessionFactory sessionFactory) {
		super.setSessionFactory(sessionFactory);
	}
}