Error creating bean with name 'xxxx': Injection of autowired dependencies failed;

曾经终败给现在 2022-05-28 12:15 152阅读 0赞

ssm整合时候出现此错误， 具体报错如下

Error creating bean with name ‘UserInfoService’: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.car.dao.IUserInfoDAO com.car.service.UserInfoService.iUserInfoDAO; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type \[com.car.dao.IUserInfoDAO\] 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)\}

--------------------

看这句：

No qualifying bean of type [com.car.dao.IUserInfoDAO] found for dependency

没有找到我的dao层接口 , 所以检查下spring-config.xml下的配置， 发现只配置了sqlSessionFactory忘记写MapperScannerConfigurer了， MapperScannerConfigurer作用是扫描我们dao层的映射器接口

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource" />
            
            <property name="mapperLocations" value="classpath:mapper/*.xml"/>
            
            <property name="typeAliasesPackage" value="com.car.entity"/>
            
            <property name="configLocation" value="classpath:mybatis-config.xml"/>
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.car.dao"></property>
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        </bean>

造成此错误还有很多原因， 大多数是因为配置写错或忘记写了, 多检查下。

Error creating bean with name 'xxxx': Injection of autowired dependencies failed;

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