Java Hibernate 4.3.4 StandardServiceRegistryBuilder

我在创建serviceRegistry时出错。我将Hibernate4.3.4与GWT和mySQL数据库一起使用。包含hibernate jar，代码中没有任何错误，但在运行它时，我得到：

com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.Long com.coma.comaexjobb.client.UserService.saveUser(com.coma.comaexjobb.shared.Users)' threw an unexpected exception: java.lang.NoClassDefFoundError: org/hibernate/service/ServiceRegistry

MyHibernateUtil.java

package com.coma.comaexjobb.Util;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;

public class HibernateUtil {

    private static SessionFactory sessionFactory;
    private static ServiceRegistry serviceRegistry;

    public static SessionFactory getSessionFactory() {
        Configuration configuration = new Configuration();
        configuration.configure();
        serviceRegistry = new StandardServiceRegistryBuilder().applySettings(
                configuration.getProperties()).build();
        sessionFactory = configuration.buildSessionFactory(serviceRegistry);
        return sessionFactory;
    }
 }

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有人知道该怎么做吗？谢谢

看来问题出在

导入org.hibernate.service.ServiceRegistry,，
也许您的项目中WEB-INF中缺少了jar（请注意，GWT大多数时间都需要：jar和源代码），那么GWT就找不到类：
org/hibernate/service/ServiceRegistry
谢谢！.jar仅包含在引用库下，未包含在WEB-INF库中。哪个文件？很高兴知道你是如何解决我们自己的问题的？6077