在entityManagerFactory bean定义中指定“ packagesToScan”和“ persistenceUnitName”属性。
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerfactorybean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="myPersistenceUnit" />
<property name="packagesToScan" >
<list>
<value>org.mypackage.*.model</value>
</list>
</property>
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</props>
</property>
</bean>
请注意，这适用于Spring版本> 3.1
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