关于配置XML的异常分析-Mybatis配置文件

org.apache.ibatis.builder.IncompleteElementException:

Could not find parameter map org.lanqiao.tjut.mapper.UsersMapper.UsersMapper；

异常是有关UsersMapper文件查找不到

有可能Mybatis.XML中的别名配置错误如：
<!-- 使用别名 -->
<typeAliases>
<typeAlias  alias="Users"  type="org.lanqiao.tjut.bean.Users"/>
</typeAliases>

而在Mapper包下如：
<mapper namespace="org.lanqiao.tjut.mapper.UsersMapper">

 <resultMap type="Users" id="UsersMapper">

<id column="userId" property="userId"/>

<result column="name" property="name"/> 

<result column="password" property="password"/> 

</resultMap> 

<select id="selectUserBeanList" resultMap="UsersMapper">

select * from USERS 

</select>

 <select id="selectUserBeanSome"  parametertype="Users" resultMap="UsersMapper"
>

 select * from USERS WHERE USERID=#{userId}

 </select>