org.springframework.beans.factory.BeanCreationException: Error creating bean with name ....解决方案

今天在整合Spring和MyBatis时碰到了这样的错误：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘userService’: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.lsl.ssm.dao.user.UserMapper com.lsl.ssm.service.user.Imp.UserServiceImp.userMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.lsl.ssm.dao.user.UserMapper] 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=userMapper)}

上网找到的原因无非两种：
1、扫描Dao和Service接口包路径是否写对了

<property name="basePackage" value="com.lsl.ssm.dao" />

<context:component-scan base-package="com.lsl.ssm.service"/>

2、写没写上对应的注解@Service

@Service("userService")
public class UserServiceImp implements UserService {
    @Autowired // 自动填充
    @Qualifier("userMapper") // 限定词
    private UserMapper userMapper;
    ...
}

其实如果是上面两种原因错误提示是这样的：org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named ‘userService’ is defined。。是直接提示：NoSuchBeanDefinitionException的！

而我出错的原因是配置sqlSessionFactoryBean是字母拼错了！classpath写成了classpaht。所以如果你有同样的报错可检查下这部分有没有写错。

  <!-- 配置sqlSessionFactoryBean -->
  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <!-- 引用数据源组件 -->
    <property name="dataSource" ref="dataSource"/>
    <!-- 引用MyBatis配置文件中的配置 -->
    <property name="configLocation" value="classpath:mybatis-config.xml"/>
    <!-- 指定映射文件的位置 -->
    <property name="mapperLocations">
        <list>
            <value>com/lsl/ssm/dao/user/UserMapper.xml</value>
        </list>
    </property>
  </bean>