Java 如何使用 Spring Boot 和 IntelliJ Idea 从数据库生成实体类？

How can I generate entities classes from database using Spring Boot and IntelliJ Idea?

提问by Lucas León

I trying to make a project using the Spring Initializr wizard and I already have a database, so I want to generate entities classes using Spring Boot and IntelliJ Idea.

我尝试使用 Spring Initializr 向导创建一个项目，并且我已经有了一个数据库，所以我想使用 Spring Boot 和 IntelliJ Idea 生成实体类。

采纳答案by rapasoft

Prerequisites are:

先决条件是：

1. You have your Spring Boot project initialized correctly in IDEA
2. JPA persistence.xml file or similar has been generated correctly

1. 您已在 IDEA 中正确初始化了 Spring Boot 项目
2. 已正确生成 JPA persistence.xml 文件或类似文件

Then you have to do these things:

然后你必须做这些事情：

1. Create a DataSource- here you will add a simple DataSource that will connect to your database. The setup should be intuitive - you only provide connection details and add DB drivers (IDEA can download them for you)
2. Add JPA/Hibernate facet. You can do it like thisor this.
3. Now you should be able to generate entities using IDEA. What you want to do here is choose Generate by Database Schema. The dialog will let you select the tables you want to use, the rest should be up to you.

1. 创建一个数据源- 在这里您将添加一个将连接到您的数据库的简单数据源。设置应该是直观的 - 您只需提供连接详细信息并添加数据库驱动程序（IDEA 可以为您下载）
2. 添加 JPA/Hibernate 方面。你可以像这样或这样。
3. 现在您应该能够使用 IDEA 生成实体。您在这里要做的是选择Generate by Database Schema。该对话框将让您选择要使用的表，其余的由您决定。