Question

我有一个在内存POC中运行H2数据库的应用程序，我需要自动导入src / main / resources文件夹中的schema.sql和data.sql脚本。根据我的阅读，只需将这些文件放在该文件夹中即可，当启动服务器时，我可以看到它们正在执行：

2018-09-30 14:01:45.644  INFO 9720 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executing SQL script from URL [file:/home/brandon/code/validus/music-web/target/classes/schema.sql]
2018-09-30 14:01:45.677  INFO 9720 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executed SQL script from URL [file:/home/brandon/code/validus/music-web/target/classes/schema.sql] in 33 ms.
2018-09-30 14:01:45.680  INFO 9720 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executing SQL script from URL [file:/home/brandon/code/validus/music-web/target/classes/data.sql]
2018-09-30 14:01:45.707  INFO 9720 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executed SQL script from URL [file:/home/brandon/code/validus/music-web/target/classes/data.sql] in 27 ms.

问题在于，当我随后登录到架构时，它是空的。这是我的JPA配置：

@Configuration
@EnableTransactionManagement
public class PersistenceJPAConfig {
    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        em.setDataSource(dataSource());
        em.setPackagesToScan(new String[] { "com.validus" });

        JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        em.setJpaVendorAdapter(vendorAdapter);
        em.setJpaProperties(additionalProperties());

        return em;
    }

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("org.h2.Driver");
        dataSource.setUrl("jdbc:h2:mem:testdb");
        dataSource.setUsername("sa");
        dataSource.setPassword("");
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(emf);

        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    Properties additionalProperties() {
        Properties properties = new Properties();
//      properties.setProperty("hibernate.hbm2ddl.auto", "none");
        properties.setProperty("spring.jpa.generate-ddl", "false");
        properties.setProperty("spring.jpa.hibernate.ddl-auto", "create");
        properties.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
//      properties.setProperty("javax.persistence.schema-generation.database.action", "none");
//      properties.setProperty("javax.persistence.schema-generation.scripts.action", "none");
//      properties.setProperty("javax.persistence.schema-generation.create-source", "none");

        return properties;
    }
}

我设法关闭了基于POJO的生成，但是我希望它仍然自动导入schema.sql。我在这里想念什么？

谢谢

Answer 1

创建一个sql文件夹，以便您可以将sql脚本放入其中，并尝试在数据源Bean中像下面这样尝试代码：

 try {
            EmbeddedDatabaseBuilder dbBuilder = new EmbeddedDatabaseBuilder();
            return dbBuilder.setType(EmbeddedDatabaseType.H2)
                    .addScript("Classpath:sql/security.sql").build();
        }catch(Exception e) {
            logger.error("Embedded Datasource bean cannot be created !!", e);
            return null;
        }

希望这会有所帮助

Spring Boot H2从文件创建数据库架构

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