控制Hibernate中的自动引入

由于在项目的不同包中存在相同的JavaBean类Student,并且在hibernate.cfg.xml中同时添加了如下映射：

  <mapping resource="hibernate/Student.hbm.xml" />
  <mapping resource="springHibernate/Student.hbm.xml" />

在运行时抛出如下异常：

Caused by: org.hibernate.DuplicateMappingException: duplicate import: Student refers to both springHibernate.Student and hibernate.Student (try using auto-import="false")

 

解决方法是在映射文件中添加auto-import="false":

<?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 auto-import="false">
    <class name="springHibernate.Student" table="student" catalog="test">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="increment" />
        </id>
        <property name="username" type="java.lang.String">
            <column name="username" length="200" not-null="true" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" length="20" not-null="true" />
        </property>
        <property name="age" type="java.lang.Integer">
            <column name="age" />
        </property>
    </class>
</hibernate-mapping>