Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.itcast.crm.service.BaseDictService cn.itcast.crm.controller.CustomerController.baseDictService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.itcast.crm.service.BaseDictService] 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)} 严重: StandardWrapper.Throwable org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customerController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.itcast.crm.service.BaseDictService cn.itcast.crm.controller.CustomerController.baseDictService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [cn.itcast.crm.service.BaseDictService] 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)}
解决问题的思路：
1.如果您使用注释进行配置，则可能会缺少cn.itcast.crm.service.BaseDictService实现的注释（@Service或@Component等）。
2.如果您使用（仅）xml，您可能会错过BaseDictService实现的定义。
3.如果您使用注释并且实现注释正确，请检查扫描实现所在的包
（检查各自组件的自动扫描组件<context：component-scan base-package = “XXXX”）
或者（Spring自动扫描context:annotation-config/）
4.代码有无错误：例子如下,Service类实现接口具有相同申明方法的Mapper接口，都会导致Spring无法识别相应的bean：
public interface BaseDictMapper {
//根据类别代码查询数据
List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode);
}
根据类别代码查询数据
List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode);
}
根据类别代码查询数据 List queryBaseDictByDictTypeCode(String dictTypeCode);
}
public interface BaseDictService {
//根据类别代码查询
List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode);
}
public class BaseDictServiceImpl implements BaseDictMapper {//错误：应该实现为BaseDictService
@Autowired
private BaseDictMapper baseDictMapper;
@Override
public List<BaseDict> queryBaseDictByDictTypeCode(String dictTypeCode) {
List<BaseDict> list = this.baseDictMapper.queryBaseDictByDictTypeCode(dictTypeCode);
return list;
}
}
``