hibernate中用uuid算法生成主键怎样配置？.

Question

hibernate中用uuid算法生成主键怎样配置？

Answer 1

<hibernate-mapping>
<class name="cn.data.jsytjxx.Jsytjxx"
table="B_YW_JSYTJXX" schema="ADMINISTRATOR">
<id name="systemid" type="java.lang.String">
<column name="SYSTEMID" length="50" />
<generator class="uuid.hex"></generator>
</id>
<property name="tjlsh" type="java.lang.String">
<column name="TJLSH" length="20" not-null="true" />
</property>
</class>
</hibernate-mapping>

Answer 2

        <id name="主键属性" type="java.lang.String">
            <column name="对应列" length="32" />
            <generator class="uuid.hex" />
        </id>