1. 程式人生 > >外鍵關聯非主鍵id時-hbm.xml配置,及其分頁查詢DaoImpl

外鍵關聯非主鍵id時-hbm.xml配置,及其分頁查詢DaoImpl

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表關聯時,外鍵關聯非主鍵id時-hbm.xml配置:

(由於hibernate默認為關聯主鍵查詢,故需要配置相關hql語句的屬性)

<many-to-one name="areas" class="com.hnqy.entity.Areas" fetch="select" property-ref="areaid" foreign-key="areaid">
<column name="area" />
</many-to-one>

其中:foreign-key為主表字段,property-ref為類屬性

關於

hibernateTemplate.get

(Ordermanager.class, id);返回為類對象

hibernateTemplate.find("from Shoppingitems where orderid = ? ", id);返回為List結合

關於查詢分頁的 DaoImpl

public List<Ordermanager> findByPage( String orderNumber,String userAccount,String sendName,Integer orderState , int currentPage, int pageSize) {
  Session session=hibernateTemplate.getSessionFactory().getCurrentSession();
  List Hqllist=new ArrayList<>();
  StringBuffer hql=new StringBuffer("from Ordermanager where 1=1

");
  if(orderNumber!=null&& !"".equals(orderNumber)){
    hql.append(" and orderNumber= ? ");
    Hqllist.add(orderNumber);
  }
  if(userAccount!=null&& !"".equals(userAccount)){
    hql.append(" and userAccount= ? ");
    Hqllist.add(userAccount);
  }
  if(sendName!=null&& !"".equals(sendName)){
    hql.append(" and sendName= ?
");
    Hqllist.add(sendName);
  }
  if(orderState!=null&& !"".equals(orderState)){
    hql.append(" and orderState= ? ");
    Hqllist.add(orderState);
  }
  Query q=session.createQuery(hql.toString());
  for (int i = 0; i < Hqllist.size(); i++) {
    q.setParameter(i, Hqllist.get(i));
  }
  q.setFirstResult((currentPage-1)*pageSize).setMaxResults(pageSize);
  List<Ordermanager> list1=q.list();
  return list1;
  }

外鍵關聯非主鍵id時-hbm.xml配置,及其分頁查詢DaoImpl