mybatis 實現遞迴查詢出樹結構節點
阿新 • • 發佈:2018-11-07
mybatis 實現遞迴查詢出樹結構節點
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.modules.guide.mapper.BookDirectoryDao"> <resultMap id="directoryVoMap" type="com.modules.guide.vo.BookDirectoryVo"> <id column="id" jdbcType="VARCHAR" property="id" /> <result column="book_id" jdbcType="VARCHAR" property="bookId" /> <result column="directory_name" jdbcType="VARCHAR" property="directoryName" /> <result column="page_num" jdbcType="INTEGER" property="pageNum" /> <result column="grade" jdbcType="INTEGER" property="grade" /> <result column="parent_id" jdbcType="VARCHAR" property="parentId" /> <result column="del_flag" jdbcType="INTEGER" property="delFlag" /> <result column="create_by" jdbcType="VARCHAR" property="createBy" /> <result column="create_date" jdbcType="TIMESTAMP" property="createDate" /> <collection property="children" column="{id=id,grade=grade}" ofType="map" javaType="java.util.List" select="getChildrenList" > </collection> </resultMap> <resultMap id="nextDirectoryVoMap" type="com.modules.guide.vo.BookDirectoryVo"> <id column="id" jdbcType="VARCHAR" property="id" /> <result column="book_id" jdbcType="VARCHAR" property="bookId" /> <result column="directory_name" jdbcType="VARCHAR" property="directoryName" /> <result column="page_num" jdbcType="INTEGER" property="pageNum" /> <result column="grade" jdbcType="INTEGER" property="grade" /> <result column="parent_id" jdbcType="VARCHAR" property="parentId" /> <result column="del_flag" jdbcType="INTEGER" property="delFlag" /> <result column="create_by" jdbcType="VARCHAR" property="createBy" /> <result column="create_date" jdbcType="TIMESTAMP" property="createDate" /> <collection property="children" column="{id=id,grade=grade}" ofType="map" javaType="java.util.List" select="getChildrenList" > </collection> </resultMap> <select id="query" parameterType="java.util.Map" resultType="BookDirectory"> select * from t_guide_book_directory where 1=1 <if test="id!=null and id!=''"> and id=#{id} </if> <if test="queryparam!=null and queryparam!=''"> ${queryparam} </if> order by page_num asc </select> <!-- 電子書目錄列表查詢 --> <select id="getBookDirectoryVo" parameterType="com.modules.guide.entity.BookDirectory" resultMap="nextDirectoryVoMap"> select * from t_guide_book_directory where book_id = #{bookId,jdbcType=VARCHAR} and parent_id LIKE CONCAT('%',#{parentId,jdbcType=VARCHAR} ,'%') and grade = #{grade,jdbcType=INTEGER} order by page_num asc </select> <!-- 電子書子目錄 --> <select id="getChildrenList" parameterType="java.util.Map" resultMap="directoryVoMap"> select * from t_guide_book_directory where parent_id LIKE CONCAT('%',CONCAT(#{id,jdbcType=VARCHAR},"_",#{grade,jdbcType=VARCHAR}) ,'%') and grade = (#{grade,jdbcType=INTEGER} + 1) order by page_num asc </select> </mapper>