eclipse 休眠映射错误：MappingException：AnnotationConfiguration 实例
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16913225/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Hibernate Mapping Error: MappingException: An AnnotationConfiguration instance
提问by Davidin073
I have a project with Hibernate.I tried to read the configuration file hibernate.cfg and got this error:
我有一个 Hibernate 项目。我试图读取配置文件 hibernate.cfg 并收到此错误：
Error creando una factoria de session.org.hibernate.MappingException: An AnnotationConfiguration instance is required to use <mapping class="com/david/Categoria"/>
jun 04, 2013 10:19:26 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: El Servlet.service() para el servlet [ControladorLibros] en el contexto con ruta [/App01HTML] lanzó la excepción [La ejecución del Servlet lanzó una excepción] con causa raíz
org.hibernate.MappingException: An AnnotationConfiguration instance is required to use <mapping class="com/david/Categoria"/>
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1524)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1479)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1458)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1432)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1338)
at com.david.HibernateHelper.buildSessionFactory(HibernateHelper.java:13)
my configuration file is so simple:
我的配置文件很简单：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/arquitecturajava</property>
<property name="connection.username">root</property>
<property name="connection.password">root</property>
<property name="connection.pool_size">5</property>
<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
<property name="show_sql">true</property>
<mapping class="com/david/Categoria"></mapping>
<mapping class="com/david/Libro"></mapping>
</session-factory>
</hibernate-configuration>
don′t accept mapping class lines.
不接受映射类行。
I create de configurations similar to this code:
我创建类似于此代码的配置：
private static SessionFactory buildSessionFactory()
{
try
{
return new Configuration().configure().buildSessionFactory();
}
catch (Throwable ex)
{
System.err.println("Error creando una factoria de session." + ex);
throw new ExceptionInInitializerError(ex);
}
}
and my project libraries are:
我的项目库是：
Any idea?
任何的想法？
回答by eternay
I think you need the Hibernate Annotation library in your classpath. You can add it manually, downloading it from Hibernate site, or you can add this Maven dependency:
我认为您的类路径中需要 Hibernate Annotation 库。您可以手动添加它，从 Hibernate 站点下载它，或者您可以添加此 Maven 依赖项：
<dependency>
<groupId>hibernate-annotations</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.3.0.GA</version>
</dependency>
And then use the class AnnotationConfigurationinstead of Configuration to configure your sessionFactory.
然后使用类AnnotationConfiguration而不是 Configuration 来配置您的sessionFactory.
return new AnnotationConfiguration().configure().buildSessionFactory();
Then you have to correct the qualified name of the class, as @JB Nizet suggested you in his comment.
然后您必须更正类的限定名称，正如@JB Nizet 在他的评论中建议的那样。
I think this will solve your problem.
我认为这将解决您的问题。
EDIT: sorry, I think you have the annotations library in your classpath, just use the AnnotationConfigurationclass instead of Configurationwhen you build your sessionFactory.
编辑：对不起，我想你在你的类路径中的注释库，只需使用AnnotationConfiguration类，而不是Configuration当你建立你的sessionFactory。
回答by Davidin073
The problem was of libraries. This is the solutions:
问题是图书馆。这是解决方案：
A lot of thank′s to Eternay and JB Nizet.
非常感谢 Eternay 和 JB Nizet。
