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| | | <?xml version="1.0" encoding="UTF-8" ?> |
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| | | <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > |
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| | | <mapper namespace="com.lxzn.ucenter.dao.MenuMapper"> |
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| | | <select id="findByUserId" parameterType="String" resultType="Menu"> |
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| | | <select id="findByUserId" parameterType="String" resultType="com.lxzn.framework.domain.ucenter.Menu"> |
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| | | select m.menu_id |
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| | | , m.perm_code |
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| | | , m.menu_name |
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| | |
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| | | 3、多级关联语句是分开查询的 数据量大的情况下性能低下 |
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| | | 4、如果确定级树 可以使用级联查询一次查询 例子： |
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| | | --> |
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| | | <resultMap id="menuExtBaseResult" type="MenuExt"> |
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| | | <resultMap id="menuExtBaseResult" type="com.lxzn.framework.domain.ucenter.ext.MenuExt"> |
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| | | <id column="menu_id" property="menuId" /> |
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| | | <collection column="menu_id" property="childList" select="findByParentId"> |
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| | | </collection> |
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| | | </resultMap> |
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| | | |
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| | | <resultMap id="menuExtSingleSelectResult" type="MenuExt"> |
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| | | <resultMap id="menuExtSingleSelectResult" type="com.lxzn.framework.domain.ucenter.ext.MenuExt"> |
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| | | <id column="menu_id_one" property="menuId" /> |
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| | | <result column="perm_code_one" property="permCode" /> |
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| | | <result column="menu_name_one" property="menuName" /> |
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| | |
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| | | <result column="icon_cls_one" property="iconCls" /> |
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| | | <result column="priority_one" property="priority" /> |
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| | | <result column="rank_level_one" property="rankLevel" /> |
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| | | <collection property="childList" ofType="MenuExt"> |
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| | | <collection property="childList" ofType="com.lxzn.framework.domain.ucenter.ext.MenuExt"> |
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| | | <id column="menu_id_two" property="menuId" /> |
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| | | <result column="perm_code_two" property="permCode" /> |
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| | | <result column="menu_name_two" property="menuName" /> |
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| | |
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| | | <result column="icon_cls_two" property="iconCls" /> |
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| | | <result column="priority_two" property="priority" /> |
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| | | <result column="rank_level_two" property="rankLevel" /> |
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| | | <collection property="childList" ofType="MenuExt"> |
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| | | <collection property="childList" ofType="com.lxzn.framework.domain.ucenter.ext.MenuExt"> |
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| | | <id column="menu_id_three" property="menuId" /> |
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| | | <result column="perm_code_three" property="permCode" /> |
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| | | <result column="menu_name_three" property="menuName" /> |
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