Mybatis报错：org.apache.ibatis.exceptions.PersistenceException:

mybatis框架，在进行测试类测试时候一直报错，如下：
org.apache.ibatis.exceptions.PersistenceException:

Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'roleCode ’ of ‘class cn.smbms.entity.Role’ with value ‘SMBMS_EMPLOYEE’ Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'roleCode ’ in ‘class cn.smbms.entity.Role’

The error may exist in cn/smbms/dao/user/UserMapper.xml

The error may involve cn.smbms.dao.user.UserMapper.getUserListByRoleId-Inline

The error occurred while setting parameters

SQL: select u.*,r.id as r_id,r.roleCode,r.roleName from smbms_user u ,smbms_role r where u.userRole=? and u.userRole=r.id

Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'roleCode ’ of ‘class cn.smbms.entity.Role’ with value ‘SMBMS_EMPLOYEE’ Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'roleCode ’ in ‘class cn.smbms.entity.Role’

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)
前前后后找了好几表代码也没错呀，报的是UserMapper.xml中可能错了，说roleCode没找到，无法赋值，在里面找了好几遍，也没发信错误呀。
这是UserMapper.xml里面的错误的sql
 <resultMap type="user" id="userRoleResult">
      <id property="id" column="id"/>
      <result property="userCode" column="userCode"/>
      <result property="userName" column="userName"/>
      <result property="userRole" column="userRole"/>
  <association property="role" javaType="Role">
     <id property="id" column="r_id"/>
      <result property="roleCode " column="roleCode"/> 
     <result property="roleName" column="roleName"/>
   </association>
 </resultMap>
 
 
 <select id="getUserListByRoleId" resultMap="userRoleResult" parameterType="Integer">
 select u.*,r.id as r_id,r.roleCode,r.roleName
   from smbms_user u ,smbms_role r 
 where u.userRole=#{userRole} and u.userRole=r.id
 </select>
 仔仔细细看了好几遍才发现原来是property="roleCode " 中多了个空格，把空格去掉，property="roleCode"，就没问题了，就是一个空格，不小心还真不容易发现，写代码一定认真，马虎不得呀。