mybatis的resultMap中association配置

<resultMap id="resultMap" type="Staff">
        <id property="id" column="id" javaType="Integer"></id>
        <result property="account" column="account" javaType="String"></result>
        <result property="password" column="password" javaType="String"></result>
        <result property="status" column="status" javaType="String"></result>
        <result property="did" column="did" javaType="Integer"></result>
        <result property="name" column="name" javaType="String"></result>
        <result property="sex" column="sex" javaType="String"></result>
        <result property="idNumber" column="id_number" javaType="String"></result>
        <result property="workTime" column="work_time" javaType="java.util.Date"></result>
        <result property="leaveTime" column="leave_tiem" javaType="java.util.Date"></result>
        <result property="bornDate" column="born_date" javaType="java.util.Date" ></result>
        <result property="info" column="info" javaType="String"></result>
        <association property="department" column="did" javaType="department" select="com.yzy.Dao.departmentDao.selectById"></association>
　　　　　<!--多对一时使用association，多个员工对应一个部门，column设置与department关联的列，select是将查询到的结果存放在department这个属性对象中，通过命名空间调用之前定义好的接口方法-->

    </resultMap>