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本文详细阐述了企业人员信息管理系统的实现原理，包括人员、单位及人员单位关联表的设计，以及如何利用Hibernate进行实体关联与数据映射。重点介绍了Tac01、Tac20和Tace10实体类的定义与操作，以及获取人员单位信息的代码示例。

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Tac01 人员信息表

Tac20 人员单位关联表

Tace10 单位信息表

人员可能会对应多个单位，用有效标志区分，一个单位会有多个人员

Tac01.hbm.xml , 一对多（one to many）

 <class name="com.ssh.test.hiber.po.Tac01" table="TAC01" schema="SICP3">
        <comment>人员</comment>
        <id name="aac001" type="java.lang.Long">
            <column name="AAC001" precision="20" scale="0" />
            <generator class="assigned" />
        </id>
        <property name="aac003" type="java.lang.String">
            <column name="AAC003" length="50">
                <comment>姓名</comment>
            </column>
        </property>
        <property name="aac004" type="java.lang.String">
            <column name="AAC004" length="1">
                <comment>性别</comment>
            </column>
        </property>
        <property name="aac006" type="java.lang.Integer">
            <column name="AAC006" precision="8" scale="0">
                <comment>出生日期</comment>
            </column>
        </property>
        <property name="aac007" type="java.lang.Integer">
            <column name="AAC007" precision="8" scale="0">
                <comment>工作日期</comment>
            </column>
        </property>
         <set name="tac20s" inverse="true" lazy="false">
            <key>
                <column name="AAC001" />
            </key>
            <one-to-many class="com.ssh.test.hiber.po.Tac20" />
        </set>
    </class>

Tac01 .java

	private static final long serialVersionUID = 1L;
	private Long aac001;
	private String aac003;
	private String aac004;
	private Integer aac006;
	private Integer aac007;
	private Set<Tac20> tac20s = new HashSet<Tac20>() ;

get,set 删除，自己增加

Tac20.hbm.xml 两个多对一（ many to one）

 <class name="com.ssh.test.hiber.po.Tac20" table="TAC20" schema="SICP3">
        <comment>人员单位关联表</comment>
        <id name="aaz157" type="java.lang.Long">
            <column name="AAZ157" precision="16" scale="0" />
            <generator class="assigned" />
        </id>
        <many-to-one name="ac01" class="com.ssh.test.hiber.po.Tac01" fetch="select" lazy="false" insert="false" update="false">
            <column name="AAC001" />
        </many-to-one>
        <many-to-one name="ae10" class="com.ssh.test.hiber.po.Tace10" fetch="select" lazy="false" insert="false" update="false">
            <column name="AAB001" />
        </many-to-one>
        <property name="aac066" type="java.lang.String">
            <column name="AAC066" length="3">
                <comment></comment>
            </column>
        </property>
        <property name="aab001" type="java.lang.Long">
            <column name="AAB001" precision="20" scale="0">
                <comment>单位ID</comment>
            </column>
        </property>
        <property name="aac001" type="java.lang.Long">
            <column name="AAC001" precision="20" scale="0">
                <comment>人员ID</comment>
            </column>
        </property>
        <property name="aac013" type="java.lang.String">
            <column name="AAC013" length="1">
                <comment></comment>
            </column>
        </property>
        <property name="aac031" type="java.lang.String">
            <column name="AAC031" length="1">
                <comment>有效标记</comment>
            </column>
        </property>
        <property name="aae030" type="java.lang.Integer">
            <column name="AAE030" precision="8" scale="0">
                <comment>开始日期</comment>
            </column>
        </property>
        <property name="aae031" type="java.lang.Integer">
            <column name="AAE031" precision="8" scale="0">
                <comment>终止日期</comment>
            </column>
        </property>
    </class>

Tac20.java

private Long aaz157;
	private String aac066;
	private Long aab001;
	private Long aac001;
	private String aac013;
	private String aac031;
	private Integer aae030;
	private Integer aae031;
	private Tac01 ac01;
	private Tace10 ae10;

Tace10 .hbm.xml 一对多（one to many）

<class name="com.ssh.test.hiber.po.Tace10" table="TACE10" schema="SICP3">
        <comment>单位</comment>
        <id name="aaz001" type="java.lang.Long">
            <column name="AAZ001" precision="20" scale="0" />
            <generator class="assigned" />
        </id>
        <property name="aae004" type="java.lang.String">
            <column name="AAE004" length="50">
                <comment>联系人姓名</comment>
            </column>
        </property>
        <property name="aae005" type="java.lang.String">
            <column name="AAE005" length="20">
                <comment>联系电话</comment>
            </column>
        </property>
        <property name="aae006" type="java.lang.String">
            <column name="AAE006" length="100">
                <comment>地址</comment>
            </column>
        </property>
        <property name="aab069" type="java.lang.String">
            <column name="AAB069" length="100">
                <comment>名称</comment>
            </column>
        </property>
        <set name="ac20s" inverse="true">
            <key>
                <column name="AAZ001" />
            </key>
            <one-to-many class="com.ssh.test.hiber.po.Tac20" />
        </set>
    </class>

Tace10.java

private Long aaz001;
	private String aae004;
	private String aae005;
	private String aae006;
	private String aab069;
	private Set<Tac20> ac20s = new HashSet<Tac20>() ;

取值时，我们只用 hibernateTemplate.get(Tac01.class, aac001) 取到 Tac01 ，

就可以通过

Tac01 ac01 = hibernateTemplate.get(Tac01.class, aac001) ;

	if(ac01 != null && ac01.getAac003() != null){
			if(ac01.getTac20s() != null){
				for(Tac20 ac20 : ac01.getTac20s()){
					dto.setAab069(ac20.getAe10().getAab069());
				}
			}else{
				dto.setAab069("人员暂时没有单位");
			}
			dto.setName(ac01.getAac003());
		}else{
			dto.setName("人员不存在");
		}

代码示例 http://download.youkuaiyun.com/detail/meililiuwei/6857577