java实现遍历树形菜单方法——映射文件VoteTree.hbm.xml

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<?xml version="1.0" encoding="utf-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!--     Mapping file autogenerated by MyEclipse Persistence Tools--><hibernate-mapping>    <class name="org.entity.VoteTree" table="VOTE_TREE" schema="VOTE">        <id name="id" type="java.lang.Long">            <column name="ID" precision="10" scale="0" />            <generator class="assigned" />        </id>        <property name="text" type="java.lang.String">            <column name="TEXT" length="30" not-null="true" />        </property>        <property name="pid" type="java.lang.Long">            <column name="PID" precision="10" scale="0" />        </property>        <property name="levels" type="java.lang.Long">            <column name="levels"/>        </property>      <!--   <list name="children" cascade="all">        <key column="pid"/>        <index column="id"/>        <one-to-many class="org.entity.VoteTree"/>        </list> -->    </class></hibernate-mapping>

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