void batchSave(@Param("relationList") List<ReqDocRelations> relationList);
    
void batchDelete(@Param("id")List<Long> ids); 

 <!-- 根據(jù)id 批量刪除 -->
  <delete id="batchDelete" parameterType="java.lang.Long">
    delete from doc_relation
    where id in
      <foreach collection="id" index="index" item="list" open="("
        separator="," close=")">
        #{list,jdbcType=BIGINT} 
      </foreach>
   </delete>

 <!-- 根據(jù)id 批量刪除 -->
<insert id="batchSave" parameterType="web.request.ReqDocRelations">
     insert into doc_relation (id, hospital_id, tablea_id, 
      tablea_col_id, tablea_col_index, tableb_id, 
      tableb_col_id, tableb_col_index)
    values 
   <foreach collection="relationList" item="list" index="index" separator="," >
    (#{list.id,jdbcType=BIGINT}, #{list.hospitalId,jdbcType=BIGINT}, #{list.tableaId,jdbcType=BIGINT}, 
      #{list.tableaColId,jdbcType=BIGINT}, #{list.tableaColIndex,jdbcType=VARCHAR}, #{list.tablebId,jdbcType=BIGINT}, 
      #{list.tablebColId,jdbcType=BIGINT}, #{list.tablebColIndex,jdbcType=VARCHAR})
    </foreach>
  </insert>