# 79.9 使用传统的persistence.xml文件

Spring不要求使用XML配置JPA提供者（provider），并且Spring Boot假定你想要充分利用该特性。如果你倾向于使用`persistence.xml`，那你需要定义你自己的ID为`entityManagerFactory`的`LocalEntityManagerFactoryBean`类型的`@Bean`，并在那设置持久化单元的名称，默认设置可查看[JpaBaseConfiguration](https://github.com/spring-projects/spring-boot/tree/v2.0.0.RELEASE/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/JpaBaseConfiguration.java)。


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