mybatis association和collection标签怎么用

<resultMap type="Bill" id="ResultBill">
           <id property="id" column="id"/>
           <result property="dh" column="dh"  />
           <result property="rq" column="rq"/>
           <association property="author"  javaType="Author"  >
              <id  property="id"  column="idAutor" />
              <result property="name" column="authorName" />
              <result property="email" column="authorEmail"/>
           </association>
           <collection property="det1"  javaType="ArrayList" ofType="BillDet1" >
              <id property="id" column="idDet1"/>
              <result property="dh" column="dhDet1"/>
              <result property="wlbm" column="wlbm"/>
              <result property="wlmc" column="wlmc"/>
              <result property="unit" column="unit"/>
              <result property="qty" column="qty"/>
           </collection>

</resultMap>
<resultMap type="com.sailod.shiro.dto.HtAuthorityMenuDTO" id="OneMenuAuthority">
        <id property="htAuthorityId" column="htAuthorityId" javaType="java.lang.Long" />
        <result property="name" column="name" javaType="java.lang.String" />
        <result property="currentUserId" column="currentUserId" javaType="java.lang.Long" />
        <collection property="htAuthorityDTO"  ofType="com.sailod.shiro.dto.HtAuthorityDTO"
         select="selectAuthority" column="{htAuthorityId2 = htAuthorityId ,currentUserId2 = currentUserId}"   >
         </collection>
    </resultMap>