我有数据库配置显示以下文件,该文件从application.properties读取,其中包含连接到单个数据库的信息。
我想添加另一个类似的配置文件,它允许我连接到另一个数据库并使用它的会话工厂,就像我已经拥有的主要工厂一样。
我正在制作另一个类似的文件,该文件从另一个应用程序属性文件中读取。但是我不知道如何连接它以便我可以在每个实体类中拥有多个会话工厂
import java.util.Properties;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@Configuration
@EnableTransactionManagement
public class DatabaseConfig {
@Value("${db.driver}")
private String DB_DRIVER;
@Value("${db.password}")
private String DB_PASSWORD;
@Value("${db.url}")
private String DB_URL;
@Value("${db.username}")
private String DB_USERNAME;
@Value("${hibernate.dialect}")
private String HIBERNATE_DIALECT;
@Value("${hibernate.show_sql}")
private String HIBERNATE_SHOW_SQL;
@Value("${hibernate.hbm2ddl.auto}")
private String HIBERNATE_HBM2DDL_AUTO;
@Value("${entitymanager.packagesToScan}")
private String ENTITYMANAGER_PACKAGES_TO_SCAN;
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(DB_DRIVER);
dataSource.setUrl(DB_URL);
dataSource.setUsername(DB_USERNAME);
dataSource.setPassword(DB_PASSWORD);
return dataSource;
}
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource());
sessionFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);
Properties hibernateProperties = new Properties();
hibernateProperties.put("hibernate.dialect", HIBERNATE_DIALECT);
hibernateProperties.put("hibernate.show_sql", HIBERNATE_SHOW_SQL);
hibernateProperties.put("hibernate.hbm2ddl.auto", HIBERNATE_HBM2DDL_AUTO);
sessionFactoryBean.setHibernateProperties(hibernateProperties);
return sessionFactoryBean;
}
@Bean
public HibernateTransactionManager transactionManager() {
HibernateTransactionManager transactionManager =
new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
} // class DatabaseConfig
在通用dao中使用会话工厂。我想要另一个可以连接到另一个数据源的会话工厂。
@Repository("baseDao")
@Transactional
public class BaseDaoImpl<T extends Serializable> implements BaseDao<T> {
@Autowired
private SessionFactory sessionFactory;
private Session getSession() {
return sessionFactory.getCurrentSession();
}
...