spring-知识小结之注解为属性赋值

Posted 2020-10-08 生如夏花般寂美

<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);
	}
}