【SpringBoot】springboot启动报错The injection point has the following annotations:

【SpringBoot】springboot启动报错The injection point has the following annotations: - @org.springframework.

项目场景：

在一次springboot项目启动时，控制台出现下面提示

***************************
APPLICATION FAILED TO START
***************************

Description:

Field icbc in com.yundaotu.hebi.service.AppImpl required a bean of type ‘com.itfuture.service.userService’ that could not be found.

The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:

Consider defining a bean of type ‘com.itfuture.service.UserService’ in your configuration.

问题描述

出现上面情况，我们肯定会觉得是UserService没有交给spring管理，所以spring容器找不到userService这个bean真的是这样吗？

下面是我的UserService的部分代码：

/**
 * @author： wxh
 * @version：v1.0
 * @date： 2022/11/10 11:35
 */
@Service
public class UserServiceImpl implements UserService {
    @Resource
    private UserDao userDao;
    }

那么，加了@Service，就是说UserService已经交给了spring管理，那为什么还是扫不到呢？？

原因分析：

那么这里就要想想springMVC了，哦！对，springboot并不知道去哪找注解，也就是说得告诉springboot去扫描哪些包的注解！！

我的启动器：

@SpringBootApplication
public class EApplication {
    public static void main(String[] args) {
        SpringApplication.run(EApplication.class, args);
    }
}

解决方案：

给启动器添加@ComponentScan(basePackages = { “com.itfuture.mapper” })

@SpringBootApplication
@MapperScan("com.itfuture.mapper")
public class EApplication {
    public static void main(String[] args) {
        SpringApplication.run(EApplication.class, args);
    }
}