休眠4.3.4 StandardServiceRegistryBuilder

Question

創建serviceRegistry時出現錯誤。我使用Hibernate 4.3.4和GWT以及一個mySQL DB。休眠罐子包括在內，我沒有在代碼得到任何錯誤，但是當我跑步時我得到它：

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; 
    } 
} 

任何人都知道什麼做？謝謝

Answer 1

我看起來問題出在import org.hibernate.service.ServiceRegistry;， 也許罐子缺少在WEB-INF（注意，GWT大部分時間需要兩個：罐和源代碼）的項目，則GWT找不到課程：org/hibernate/service/ServiceRegistry。