Question

我在创建serviceRegistry时遇到错误。我将Hibernate 4.3.4与GWT和mySQL DB一起使用。包含了休眠jar，我在代码中没有任何错误，但是当我运行它时，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

我的 HibernateUtil.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;
    }
 }

任何人都知道该怎么办？谢谢

Answer 1

我看起来问题出在import org.hibernate.service.ServiceRegistry;，也许WEB-INF中缺少 jar （请注意，GWT大部分时间都需要：Jars和源代码），然后GWT找不到类：org/hibernate/service/ServiceRegistry。

Hibernate 4.3.4 StandardServiceRegistryBuilder

1 个答案: