使用SpringMVC框架，这条完整的error：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountCtrl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bing.mapper.wxcms.service.AccountService com.bing.mapper.wxcms.ctrl.AccountCtrl.accountService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.bing.mapper.wxcms.service.AccountService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

报错中异常为NoSuchBeanDefinitionException，指出没有找到要注入的内容（service或dao），从两方面着手：

1、检查下在spring配置中，是否将对应的包加入扫描。

dao配置：
<!-- 4.配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <!-- 注入sqlSessionFactory -->
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    <!-- 给出需要扫描Dao接口包 -->
    <property name="basePackage" value="com.bing.mapper.**.dao"/>
</bean>

扫描service包下所有使用注解的类型
<context:component-scan base-package="com.bing.mapper.**.service"/>

2、检查对应的注解有没有加上，可能没加@service

@Service
public class AccountServiceImpl implements AccountService {
 
    @Autowired
    private AccountDao accountDao;
 
    public List<Account> listForPage(Account searchEntity) {
        return accountDao.listForPage(searchEntity);
    }
}

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作者：夏日踩冰 
来源：CSDN 
原文：https://blog.csdn.net/a411358606/article/details/54426424