在我的Spring / Maven项目的当前状态中,我有两个实体类,应该在我的postgresql数据库中创建。 Hibernate配置类是这样的:
@Configuration
@EnableTransactionManagement
@PropertySource({ "classpath:database.properties" })
@ComponentScan({ "spring.webapp.persistence" })
public class HibernateConfig {
@Autowired
private Environment env;
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(restDataSource());
sessionFactory.setPackagesToScan(new String[] { "spring.webapp.persistence.model" });
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
@Bean
public DataSource restDataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(env.getProperty("jdbc.driverClassname"));
dataSource.setUrl(env.getProperty("jdbc.url"));
dataSource.setUsername(env.getProperty("jdbc.user"));
dataSource.setPassword(env.getProperty("jdbc.pass"));
return dataSource;
}
@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
HibernateTransactionManager txManager = new HibernateTransactionManager();
txManager.setSessionFactory(sessionFactory);
return txManager;
}
@Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
Properties hibernateProperties() {
return new Properties() {
/**
*
*/
private static final long serialVersionUID = 1L;
{
setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
setProperty("hibernate.globally_quoted_identifiers", "true");
}
};
}
}
我的文件database.properties是:
jdbc.driverClassname=org.postgresql.Driver
jdbc.url=jdbc:postgresql://localhost:5432/maven_test?charSet=LATIN1
jdbc.user=klebermo
jdbc.pass=123
hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=create-drop
我通过pom.xml添加postgresql jdbc驱动程序,其中包含:
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc3</version>
<scope>compile</scope>
</dependency>
任何人都可以看到此设置有什么问题?因为在运行应用程序时,数据库中没有创建任何表。
答案 0 :(得分:0)
hibernate.hbm2ddl.auto = update 而不是create-drop update用于创建新表,也用于更新旧表(如果有更改)
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901-1.jdbc4</version>
</dependency>
答案 1 :(得分:0)
好的,我现在发现了问题。发生我在注释@ComponentScan中有错误的路径。我修复了,现在表格是正常创建的。无论如何,谢谢你的建议。