红帽全球峰会第 2 章 Hibernate 配置
2.1. Hibernate 配置
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应用服务器内和独立应用中实体管理器的配置都位于持久存档中。持久存档是一种 JAR 文件，必须定义驻留在 META-INF/ 文件夹中的 persistence.xml 文件。
您可以使用 persistence.xml 文件连接数据库。有两种方法可以做到这一点：
指定 JBoss EAP 的
datasources子系统中配置的数据源。jta-data-source指向此持久性单元映射到的数据源的 Java 命名和目录接口名称。java:jboss/datasources/ExampleDS此处指向 JBoss EAP 中嵌入的H2 DB。persistence.xml文件中的object-relational-mapping示例Copy to Clipboard Copied! Toggle word wrap Toggle overflow 通过指定连接属性，显式配置
persistence.xml文件。在
persistence.xml文件中指定连接属性示例<property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver"/> <property name="javax.persistence.jdbc.user" value="sa"/> <property name="javax.persistence.jdbc.password" value=""/> <property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:."/>
<property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver"/> <property name="javax.persistence.jdbc.user" value="sa"/> <property name="javax.persistence.jdbc.password" value=""/> <property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:."/>Copy to Clipboard Copied! Toggle word wrap Toggle overflow 有关连接属性的完整列表，请参阅
persistence.xml文件中可配置的连接属性。
有许多属性控制 Hibernate 在运行时的行为。所有都是可选的，且具有合理的默认值。这些 Hibernate 属性均在 persistence.xml 文件中使用。有关所有可配置 Hibernate 属性的完整列表，请参阅 Hibernate Properties。
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