spring 的beans.xml问题

Question

我用JUnit做测试最后出这个问题是怎么回事啊，是不是包引错了？求大神帮助

 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [beans.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Could not determine type for: Integer, at table: questions, for columns: [org.hibernate.mapping.Column(id)]

Answer 1

http://www.cnblogs.com/davidwang456/p/4204569.html