Could not autowire. No beans of 'UserDAO' type found. more...

intellig idea 使用@Resource或者@Autowire报错，出现红色波浪线；在确定不是代码出错的问题下，

可以隐藏这个提示

 

报错提示：

Could not autowire. No beans of 'UserDAO' type found。(Ctrl+F1)  Checks autowiring problems in a bean class.

 

@Mapper    //使用Mapper注解方式，开启扫描
public interface UserDAO {

    String TABLE_NAME = "user";

    String INSERT_FIELDS = " name, password, salt, head_url ";

    String SELECT_FIELDS = " id, name, password, salt, head_url ";

    @Insert({
            "insert into ", TABLE_NAME, "(", INSERT_FIELDS,
            ") Values (#{name}, #{password}, #{salt}, #{headUrl})"
    })
    int addUser(User user);

    @Select({"select ", SELECT_FIELDS, " from ", TABLE_NAME, " where id=#{id}"})
    User selectById(int id);

    @Update({"update ", TABLE_NAME, " set password = #{password} where id=#{id}"})
    void updatePassword(User user /*set password= #{password} where id=#{id}*/);

    @Delete({"delete from ", TABLE_NAME, " where id = #{id}"})
    void deleteById(int id);
}

@Mapper
public interface NewsDAO {

    String TABLE_NAME = "news";

    String INSERT_FIELDS = " title, link, image, like_count, comment_count,created_date,user_id ";

    String SELECT_FIELDS = " id, " + INSERT_FIELDS;

    @Insert({
            "insert into ", TABLE_NAME, "(", INSERT_FIELDS,
            ") Values (#{title},#{link},#{image},#{likeCount}, #{commentCount},#{createdDate},#{userId})"
    })
    int addNews(News news);

    @Select({"select ", SELECT_FIELDS, " from ", TABLE_NAME, " where id=#{id}"})
    News selectById(int id);


    List selectByUserIdAndOffset(@Param("userId") int userId, @Param("offset") int offset,
                                       @Param("limit") int limit);
}

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = ToutiaoApplication.class)
//@WebAppConfiguration  这行会修改默认的启动路径需要注释掉
@Sql({"/init-schema.sql"})
public class InitDatabaseTests {

	@Autowired    //报错Could not autowire. No beans of 'UserDAO' type found. more...
	NewsDAO newsDAO;

	@Autowired
	UserDAO userDAO;
        ...
}

解决办法：

 Settings - Editor - Inspections - Spring - Spring Core - Code - Autowiring for Bean Class 勾去掉