Question

hibernateTemplate 分页 空指针异常

public class T extends HibernateDaoSupport{

public List getListForPage(final String hql, final int offset,
final int length) {

List list = getHibernateTemplate().executeFind(new HibernateCallback() {
public Object doInHibernate(Session session)
throws HibernateException, SQLException {
Query query = session.createQuery(hql);
query.setFirstResult(offset);
query.setMaxResults(length);
List list = query.list();
return list;
}
});
return list;
}
}

执行到List list = getHibernateTemplate().executeFind(new HibernateCallback() {出现空指针异常

Answer 1

把参数前面的final去掉看看

Answer 2

public List<> getVisit(final int pageNum) throws DataAccessException {
final int pageNumber = pageNum - 1;
return getHibernateTemplate().executeFind(
new HibernateCallback(){
public Object doInHibernate(Session session) throws HibernateException, SQLException {
StringBuffer sb = new StringBuffer();
sb.append(" from Test");
Query query = session.createQuery(sb.toString());
query.setFirstResult(pageNumber*PAGE_SIZE);
query.setMaxResults(PAGE_SIZE);
return query.list();
}
}
);
}

Answer 3

sessionFacotry没有注入进来吧，看看你的Spring配置文件先。。

追问

Answer 4

说明getHibernateTemplate()返回的是null

Answer 5

sessionFactory未注入进来

追问

是这样注入吗？

Answer 6

那个find方法试试？！