如何使用 spring 引导从数据库创建实体类？

Question

I'm working on a spring boot application using spring data jpa at Spring Tool Suite IDE. I need to create entity classes from database but I couldn't find any answer to how to do it.

I saw an answer about adding JPA Facet adding and using it. But I couldn't add JPA Facet because my application is maven web, not jee application.

Answer 1

Mapping from db table -> entity:

1. Eclipse: Make an empty JPA Project, set data sources and use JPA Tools > Generate entities from Tables. Then copy-paste model classes to your project.

2. IntelliJ: Install plugin JPA Buddy and make a reverse engineering: Reverse engineering video

3. Netbeans: How to

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If you know other ways to generate entities, please tell us.

Answer 2

You don't create entity classes from database. You create models to map your table and its relationships with other tables.

1. Application Properties to configure JPA mapping.

https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html

2. Map your classes to a table.

https://www.vogella.com/tutorials/JavaPersistenceAPI/article.html#simple