Java 如何确保Spring数据JPA不会执行DDL(没有Spring引导)?
我有以下数据库配置Java 如何确保Spring数据JPA不会执行DDL(没有Spring引导)?,java,mysql,spring,hibernate,spring-data-jpa,Java,Mysql,Spring,Hibernate,Spring Data Jpa,我有以下数据库配置 @Configuration @EnableJpaRepositories("com.mycompany.databaseutilities.repo") @ImportResource("classpath:data_source.xml") public class DataConfig { @Autowired DataSource dataSource; @Bean public LocalContainerEntityManagerFac
@Configuration
@EnableJpaRepositories("com.mycompany.databaseutilities.repo")
@ImportResource("classpath:data_source.xml")
public class DataConfig {
@Autowired
DataSource dataSource;
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean ans =
new LocalContainerEntityManagerFactoryBean();
ans.setDataSource(dataSource);
ans.setJpaVendorAdapter(jpaVendorAdapter());
ans.setPackagesToScan("com.mycompany.databaseutilities.model");
return ans;
}
@Bean
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter ans = new HibernateJpaVendorAdapter();
ans.setShowSql(false);
ans.setGenerateDdl(false); // is this sufficient?
ans.setDatabase(Database.MYSQL);
return ans;
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager ans = new JpaTransactionManager();
ans.setEntityManagerFactory(entityManagerFactory().getObject());
return ans;
}
}
包com.mycompany.databaseutilities.model
包含类,由@Entity
我能确定它不会执行任何DDL语句吗?我不希望损坏现有数据库。您可以在spring boot
application.properties
或application.yaml
文件中指定spring.jpa.hibernate.ddl auto
属性
您还可以在创建LocalContainerEntityManagerFactoryBean
时通过提供以下属性来指定:
final Properties jpaProperties = new Properties();
jpaProperties.put( AvailableSettings.HBM2DDL_AUTO, "false" );
entityManagerFactoryBean.setJpaProperties( jpaProperties );
spring.jpa.hibernate.ddl auto=update不向应用程序的db用户/架构授予ddl权限,您就安全了。@KumaresanPerumal在哪里写这个?我没有任何配置文件。@DraganBozanovic我需要应用程序能够进行DDL,我只是不需要它自己去做。