Question

我们正在使用java配置Hibernate，这是我们配置hibernate的代码。

@Configuration
@EnableTransactionManagement
@ComponentScan({ "org.npcc.ccms.config" })
@PropertySource(value = { "classpath:application.properties" })
public class HibernateConfiguration {
    final static Logger logger = LogManager.getLogger(HibernateConfiguration.class);

    @Autowired
    private Environment environment;

    @Bean
    public LocalSessionFactoryBean sessionFactory() {
        LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
        sessionFactory.setDataSource(dataSource());
        sessionFactory.setPackagesToScan(new String[] { "org.npcc.ccms.model" });
        sessionFactory.setHibernateProperties(hibernateProperties());
        return sessionFactory;
     }

    @Bean(destroyMethod="")
    public DataSource dataSource() {
        JndiTemplate jndi = new JndiTemplate();
        DataSource dataSource = null;
        try {
            dataSource = (DataSource) jndi.lookup(environment.getRequiredProperty("datasource"));
        } catch (NamingException e) {
            logger.error("NamingException for java:comp/env/jdbc/ccms_cp1_orcl", e);
        }
        return dataSource;
    }

    private Properties hibernateProperties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
        properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
        properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
        return properties;        
    }

    @Bean
    @Autowired
    public HibernateTransactionManager transactionManager(SessionFactory s) {
       HibernateTransactionManager txManager = new HibernateTransactionManager();
       txManager.setSessionFactory(s);
       return txManager;
    }
}

我的问题是如何在同一个hibernate配置类中配置另一个数据源？我找到了解决方案here，但是使用xml配置，如何使用java配置？提前谢谢。

Answer 1

您需要注释两个不同的bean，如下所示：

@Bean(name="SessionFactory")
public SessionFactory sessionFactory() {

}

和

@Bean(name="OtherSessionFactory")
public SessionFactory otherSessionFactory() {

}

两个数据源配置正确。

然后，当您想要使用其他SessionFactory时，您只需要：

@Autowired
@Qualifier("SessionFactory")
SessionFactory sessionFactory

或

@Autowired
@Qualifier("OtherSessionFactory")
SessionFactory sessionFactory

如何使用java Hibernate配置类配置多个数据源

1 个答案: