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解決我已經添加了新的命名查詢:JPA命名查詢不能與Hibernate
@Entity(name = "books")
@NamedQueries({
@NamedQuery(name = "books.findByCategoryId",
query = "SELECT DISTINCT b.* FROM books b WHERE b.categoryId =:categoryId")
})
public class Book implements Serializable {
我使用Hibernate的DAO實現:
@Override
public Set<Book> findByCategory(Long categoryId) {
return new LinkedHashSet<Book>(sessionFactory.getCurrentSession().
getNamedQuery("books.findByCategoryId").
setParameter("categoryId", categoryId).list());
}
出於某種原因,在IDE我看到:無法解析查詢「 books.findByCategoryId」。 當我開始我得到了應用:
may 10, 2013 6:55:05 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /SpringWebFlow threw load() exception
org.hibernate.HibernateException: Errors in named queries: books.findByCategoryId
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:528)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1760)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1798)