使用引用列进行Hibernate一对一映射(XML映射)

Question

我有一个用户表和user_detail一对一映射user_detail表的表有一个字段user_id用于这个关系存储相应用户的id字段值.

如何hbm为这种关系编写hibernate 文件？

UPDATE

我的问题是用户的主键是iduser_detail的外键是什么user_id

我在互联网用户中获得的所有示例user_id作为用户主键,与其他表中的外键相同

Answer 1

在User.hbm中,您需要声明与UserDetails的关系,如下所示:

<one-to-one name="user_detail" foreign-key="user_id" class="UserDetail full name "/>

希望这对你有所帮助

Answer 2

对于用户映射....

<?xml version="1.0"?>
        <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
        <!-- Generated 25 April 2011 7:52:33 PM by Hibernate Tools 3.4.0.CR1 -->
        <hibernate-mapping>
            <class name="com.rais.User" table="USER" catalog="mydb">
                <id name="userId" type="java.lang.Integer">
                    <column name="USER_ID" />
                    <generator class="identity" />
                </id>
                <property name="userName" type="string">
                    <column name="USER_NAME" length="10" not-null="true" unique="true" />
                </property>
                <property name="userCode" type="string">
                    <column name="USER_CODE" length="20" not-null="true" unique="true" />
                </property>
                <one-to-one name="userDetail" class="com.rais.UserDetail"
                    cascade="save-update"></one-to-one>
            </class>
        </hibernate-mapping>

用于用户详细信息映射。

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <!-- Generated 25 April 2011 7:52:33 PM by Hibernate Tools 3.4.0.CR1 -->
    <hibernate-mapping>
        <class name="com.rais.UserDetail" table="USER_DETAIL"
            catalog="mydb">
            <id name="userId" type="java.lang.Integer">
                <column name="USER_ID" />
                <generator class="foreign">
                    <param name="property">user</param>
                </generator>
            </id>
            <one-to-one name="user" class="com.rais.User"
                constrained="true"></one-to-one>
            <property name="compName" type="string">
                <column name="COMP_NAME" length="100" not-null="true" />
            </property>
            <property name="compDesc" type="string">
                <column name="COMP_DESC" not-null="true" />
            </property>
            <property name="remark" type="string">
                <column name="REMARK" not-null="true" />
            </property>
        </class>
    </hibernate-mapping>