hibernate中HQL查询count返回query取得其长度

Question

QueryResult qr = new QueryResult<T>();

Query query = this.getSession().createQuery("select count(o) from "+entityName+" o " +(wherejpql==null? "": " where "+ wherejpql));

qr.setTotalRecord(query.getSingleResult());

 其中

query.getSingleResult()

 出错,还有什么方法可取得其长度?

TotalRecord

 是long类型的

 

Answer 1

qr.setTotalRecord((Long)query.uniqueResult());
类型转换下