Hibernate中使用Criteria查询及注解——（Emp.hbm.xml）

<?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="cn.bdqn.hibernate_Criteria.entity.Emp" table="EMP" schema="PRO">
        <id name="empno" type="java.lang.Integer">
            <column name="EMPNO" precision="6" scale="0" />
            <generator class="assigned" />
        </id>
        <many-to-one name="dept" class="cn.bdqn.hibernate_Criteria.entity.Dept" fetch="select">
            <column name="DEPTNO" precision="6" scale="0" />
        </many-to-one>
        <property name="ename" type="java.lang.String">
            <column name="ENAME" length="10" />
        </property>
        <property name="job" type="java.lang.String">
            <column name="JOB" length="9" />
        </property>
        <property name="mgr" type="java.lang.Integer">
            <column name="MGR" precision="6" scale="0" />
        </property>
        <property name="hiredate" type="java.util.Date">
            <column name="HIREDATE" length="7" />
        </property>
        <property name="sal" type="java.lang.Double">
            <column name="SAL" precision="7" />
        </property>
        <property name="comm" type="java.lang.Double">
            <column name="COMM" precision="7" />
        </property>
    </class>
</hibernate-mapping>