mybatis的Dao层sql示例

Posted 2023-03-09 格子衫111

一、循环批量插入及if条件

// 查询字段
String columnAll = " id,item,position,store,create_time,create_by";

    @Select("<script> "
            + "select"+ columnAll +" from tb_name WITH(NOLOCK) "
            + " <where> "
            + " <if test='param.position!=null'> AND position=#param.position </if> "
            + " <if test='param.storeId!=null'> AND store_id=#param.storeId </if> "

            + "<if test='param.itemNbrList != null and param.itemNbrList.size()>0 '>AND item_nbr in "
            + "<foreach collection='param.itemNbrList' index='index' item='item' open='(' separator=',' close=')'>"
            +" #item"
            +" </foreach>"
            +" </if>"

            + " </where> "

            + " ORDER BY position asc,item asc"
            + "</script>")
    List<ProductScope> queryAll(@Param("param") ProductScopeQuery productScope);