Spring整合Mybatis关于Dao注入失败的问题!

抛出异常

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adminService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private pers.zww.grad.dao.IAdminDao pers.zww.grad.service.impl.AdminServiceImpl.adminDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [pers.zww.grad.dao.IAdminDao] 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), @org.springframework.beans.factory.annotation.Qualifier(value=adminDao)}

此为自动生成的Mapper，我加了注解@Repository

package pers.zww.grad.dao;
import org.springframework.stereotype.Repository;
import pers.zww.grad.vo.Admin;
@Repository("adminDao")
public interface IAdminDao {
int deleteByPrimaryKey(String id);
int insert(Admin record);

int insertSelective(Admin record);

Admin selectByPrimaryKey(String id);

int updateByPrimaryKeySelective(Admin record);

int updateByPrimaryKey(Admin record);

Integer getCountByName(String name);

Integer getCountByNameAndPass(String name,String password);
}
这是Service里面注入
package pers.zww.grad.service.impl;
、、、
@Service("adminService")
public class AdminServiceImpl implements IAdminService {
@Autowired
@Qualifier("adminDao")
private IAdminDao adminDao;

@Override
public int deleteByPrimaryKey(String id) {
    // TODO Auto-generated method stub
    return 0;
}

配置文件都已扫描过了，而且相关mybatis的如下：

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <!-- 自动扫描mapping.xml文件 -->
    <property name="mapperLocations" value="classpath:pers/zww/grad/mapping/*.xml"></property>
</bean>

<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="pers.zww.grad.dao" />
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>