如何在每个持久性单元的Hibernate / JPA中执行不同的import.sql？ [英] How to execute differnet import.sql in Hibernate/JPA for each persistence unit?

问题描述

我在JPA / Hibernate配置中配置了两个持久化单元。现在我需要为每个持久性单元执行不同的import.sql。我如何指定为每个持久性单元执行哪个import.sql？根据Hibernate的文档，我应该将import.sql放在classpath中。如果我这样做，import.sql将在每个持久性单元上执行。我需要以某种方式为每个持久性单元指定不同的import.sql。

I have configured two persistence units in my JPA/Hibernate configuration. Now i need to execute different import.sql for each persistence unit. How can I specify which import.sql should be executed for each persistence unit? According Hibernate to documentation, I should place import.sql in classpath. If I do that, import.sql is executed on each persistence unit. I need somehow to specify different import.sql for each persistence unit.

推荐答案

你可以使用org.hibernate .tool.hbm2ddl.SchemaExport类，当你的应用程序启动时。

You could probably do something manual using the org.hibernate.tool.hbm2ddl.SchemaExport class when your application starts up.

SchemaExport schemaExport1 = new SchemaExport(cfg1); // there are various c-tors available
schemaExport1.setInputFile("/import-1.sql");
schemaExport1.create(false, true);

SchemaExport schemaExport2 = new SchemaExport(cfg2);
schemaExport2.setInputFile("/import-2.sql");
schemaExport2.create(false, true);

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