mybatis查询树结构

mapper配置

1. 结果集配置

2.SQL语句配置

    
        select MENU_CODE,MENU_NAME,'0' as MENU_FLAG from DMSP_INDEX_MENU where PARENT_MENU_CODE='root' order by MENU_ORDER
    
    
        select MENU_CODE,MENU_NAME ,'0' as MENU_FLAG,MENU_ORDER from DMSP_INDEX_MENU where PARENT_MENU_CODE=#{menuCode,jdbcType=VARCHAR}
    
    
        select MENU_CODE,MENU_NAME ,'0' as MENU_FLAG,MENU_ORDER from DMSP_INDEX_MENU where PARENT_MENU_CODE=#{menuCode,jdbcType=VARCHAR}
    

3.部分解释
< collection property=“IndexMenu” ofType=“com.phfund.micro.dto.DmspIndexMenuDTO” column=“MENU_CODE” select=“queryMenuChildContents”/>
property：表示对应实体类中的属性 List 类型
ofType：实体类
column：结果集中的字段，也就是查询所对应的参数值
select ：对应的查询语句 queryMenuChildContents为对应语句的id