我正在学习hibernate/springmvc，启动服务器时出现了一个异常。我在intellij中工作，这个数据库连接到我的ide并且工作得很好（同样“test connection”也可以），但是当我试图在配置文件中创建bean时，它根本不工作。有什么问题吗？

@Configuration
@EnableTransactionManagement
@ComponentScan("com.packt.webstore")
public class RootApplicationContextConfig {
@Bean
public DataSource getDataSource() {
    BasicDataSource dataSource = new BasicDataSource();
    dataSource.setUsername("root");
    dataSource.setPassword("root");
    dataSource.setUrl("jdbc:mysql://localhost:3306/shop");
    dataSource.setDriverClassName("com.mysql.jdbc.Driver");
    return dataSource;
}

@Bean
public LocalSessionFactoryBean getSessionFactory() {
    LocalSessionFactoryBean factoryBean = new 
    LocalSessionFactoryBean();
    factoryBean.setDataSource(getDataSource());

    Properties props = new Properties();
    props.put("hibernate.show_sql", "true");
    props.put("hibernate.hbm2ddl.auto", "update");
    props.put("hibernate.dialect",
        "org.hibernate.dialect.MySQLDialect");
    factoryBean.setHibernateProperties(props);
    factoryBean.setPackagesToScan("com.packt.webstore");
    return factoryBean;
}

@Bean
public HibernateTransactionManager getTransactionalManager() {
    HibernateTransactionManager transactionManager = new
            HibernateTransactionManager();

    transactionManager.setSessionFactory(getSessionFactory()
        .getObject());
    return transactionManager;
  }
}

异常日志：

Error creating bean with name 'productController': Unsatisfied 
dependency expressed through field 'productService': Error creating 
bean with name 'productServiceImpl': Unsatisfied dependency expressed 
through field 'products': Error creating bean with name 
'productDaoImpl': Unsatisfied dependency expressed through field 
'factory': Error creating bean with name 'getSessionFactory' defined in 
com.packt.webstore.config.RootApplicationContextConfig: Invocation of 
init method failed; nested exception is 
org.hibernate.exception.GenericJDBCException: Unable to open JDBC 
Connection for DDL execution;