HSQLDB使用JavaConfig处理Spring应用程序的新手。我看不到数据库正在启动？

我是HSQLDB的新手，使用JavaConfig处理Spring应用程序。我看不到数据库正在启动？。。我知道我一定做错了什么

这是我的数据库配置

public class DatabaseConfig
{

    private static final Logger LOGGER = getLogger(DatabaseConfig.class);


    @Autowired
    Environment env;

    @Bean
    public DataSource dataSource() {

        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
        EmbeddedDatabase db = builder.setType(EmbeddedDatabaseType.HSQL).
        addScript("schema.sql").build();

        return db;
    }


    @Bean
    public DataSource hsqlDataSource()  {

        BasicDataSource ds = new BasicDataSource();


        try {
            ds.setDriverClassName("org.hsqldb.jdbcDriver");
            ds.setUsername("sa");
            ds.setPassword("");
            ds.setUrl("jdbc:hsqldb:mem:mydb");
        }
        catch (Exception e)
        {
            LOGGER.error(e.getMessage());
        }
        return ds;



    }

    @Bean
    public SessionFactory sessionFactory()
    {

        LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();
        factoryBean.setDataSource(hsqlDataSource());
        factoryBean.setHibernateProperties(getHibernateProperties());
        factoryBean.setPackagesToScan(new String[]{"com.xxx.model"});

        try
        {
            factoryBean.afterPropertiesSet();
        } catch (IOException e)
        {
            LOGGER.error(e.getMessage());
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }


        return factoryBean.getObject();
    }

    @Bean
    public Properties getHibernateProperties()
    {
        Properties hibernateProperties = new Properties();

        hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
        hibernateProperties.setProperty("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
        hibernateProperties.setProperty("hibernate.use_sql_comments", env.getProperty("hibernate.use_sql_comments"));
        hibernateProperties.setProperty("hibernate.format_sql", env.getProperty("hibernate.format_sql"));
        hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));

        hibernateProperties.setProperty("hibernate.generate_statistics", env.getProperty("hibernate.generate_statistics"));

        hibernateProperties.setProperty("javax.persistence.validation.mode", env.getProperty("javax.persistence.validation.mode"));

        //Audit History flags
        hibernateProperties.setProperty("org.hibernate.envers.store_data_at_delete", env.getProperty("org.hibernate.envers.store_data_at_delete"));
        hibernateProperties.setProperty("org.hibernate.envers.global_with_modified_flag", env.getProperty("org.hibernate.envers.global_with_modified_flag"));

        return hibernateProperties;
    }

    @Bean
    public HibernateTransactionManager hibernateTransactionManager()
    {
        HibernateTransactionManager htm = new HibernateTransactionManager();
        htm.setSessionFactory(sessionFactory());
        htm.afterPropertiesSet();
        return htm;
    }


}

这是我的主要课程：

public class MainApp
{

    private static final Logger LOGGER = getLogger(MainApp.class);

    @Autowired
    protected static MessageService mService;

    public static void main(String[] args)
    {
        ApplicationContext context = new AnnotationConfigApplicationContext(HelloWorldConfig.class);
        HelloWorld helloWorld = context.getBean(HelloWorld.class);

        /**
         * Date:   4/26/13 / 9:26 AM
         *
         * Comments:
         *
         *    I added Log4J to the example.
         */

        LOGGER.debug("Message from HelloWorld Bean: " + helloWorld.getMessage());

        Message message = new Message();
        message.setMessage(helloWorld.getMessage());
        mService.SaveMessage(message);



        helloWorld.setMessage("I am in Staten Island, New York");


        LOGGER.debug("Message from HelloWorld Bean: " + helloWorld.getMessage());
    }

下面是我在尝试将数据保存到数据库时看到的唯一错误。。。我在控制台上看不到任何关于数据库的信息

Message from HelloWorld Bean: I love New York.
Exception in thread "main" java.lang.NullPointerException

您可以从以下站点下载源代码并阅读有关此问题的信息：

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是否尝试使用@Component注释对DatabaseConfig进行注释？

我现在得到一个java.sql.SQLException：保存对象时不支持此函数DatabaseConfig不应该是@Configuration而不是@Component吗？（假设Spring3和更高版本）请不要执行

catch（异常e）{LOGGER.error（e.getMessage（））；}

这会让您很难找出哪里出了问题

@Bean

方法只能重新显示所有异常，因此您的try/catch是不必要的，可能与no重复。这是一个新错误。。所以我不能在同一个网站上发布