xml如下所示:
<persistence-unit name="testPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>jdbc/test</non-jta-data-source>
<jar-file>../../lib/app-services-1.0.jar</jar-file>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
</persistence-unit>
它是一个Web项目,所以部署单元是一个WAR文件
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