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我正在使用 Hibernate 进入 Eclipse RCP 应用程序。我为休眠映射创建了一个“服务”插件 - daos 等。为了测试,我在这个插件中创建了一个“主”类/方法。“Main”执行HibernateUtil.initSessionFactory();,然后对数据库执行一些关于所有映射的查询。它工作正常。当我从另一个 Eclipse 插件(例如“ui”)执行相同的方法HibernateUtil.initSessionFactory();时,我收到一个:

java.lang.ExceptionInInitializerError:org.hibernate.MappingNotFoundException:资源:de/da/service/data/TblItem.hbm.xml 未找到

包含映射时的异常:

addResource("de/da/service/data/TblItem.hbm.xml")


为什么会发生这种情况,而同一方法的本地调用工作正常?

public static void initSessionFactory() {

    try {
        SessionFactory sf = getSessionFactory(sessionFactory);
        Session s = sf.getCurrentSession();
        s.beginTransaction();
        s.getTransaction().commit();
    }
    catch (Throwable ex) {
        if (ConnectionException.analyze(ex)) {
            throw new ConnectionException();
        }
    }
}

public static SessionFactory getSessionFactory() {
    SessionFactory current = null;
    if (config == null)
        config = new AnnotationConfiguration().configure();

    current = getSessionFactory(sessionFactory);
    return current ;
}

private static SessionFactory getSessionFactory(SessionFactory sFactory) {

    if (sFactory == null) {
        try {

            config = new AnnotationConfiguration().
            setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLInnoDBDialect").
            setProperty("hibernate.current_session_context_class", "thread").
            setProperty("hibernate.connection.driver_class", "org.gjt.mm.mysql.Driver").
            setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/db").
            setProperty("hibernate.connection.username", "username").
            setProperty("hibernate.connection.password", "password").
            setProperty("hibernate.connection.pool_size", "0").
            setProperty("hibernate.connection.autocommit", "true").
            setProperty("hibernate.show_sql", "true").
            setProperty("hibernate.format_sql", "true").
            setProperty("hibernate.jdbc.batch_size", "0").
            addResource("de/da/service/data/TblItem.hbm.xml").

            sFactory = config.buildSessionFactory();
        } catch (Throwable ex) {
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex.toString());
        }
    }

    return sFactory;
}
4

1 回答 1

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我不尊重服务插件的好友政策。我需要添加

Eclipse-RegisterBuddy: 'name-of-plugin-with-hibernate-jars'

到我的服务插件的清单。Hibernates Classloader 现在将找到 xml 映射文件。

于 2013-02-06T10:01:03.923 回答