Hibernate中怎么实现多条件查询

这期内容当中小编将会给大家带来有关Hibernate中怎么实现多条件查询，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

1. Hibernate多条件查询通用方法

//value[i]为第i个查询条件propertyName[i]的值          （本方法已通过测试）   /*多条件查询,查询条件的值为空时自动除去该条件  * rigor为true时采用精确查询  */ public List searchByPropertys(String model,String[]propertyName,Object[] value,int page,boolean rigor){        StringBuffer sqlBuffer = new StringBuffer();      String ralation=" like ";      if(rigor){       ralation=" = ";      }      sqlBuffer.append("from "+model+" as model\n");      int len=propertyName.length;      List list=new ArrayList();      boolean first=true;      for(int i=0;i< len;i++){       if(value[i]!=null){       if(first){            sqlBuffer.append(" where "+ "model."+ propertyName[i] + ralation+" ?\n");            list.add(value[i]);        first=false;       }else{            sqlBuffer.append(" and "+ "model."+ propertyName[i] +ralation+ " ?\n");            list.add(value[i]);       }      }      }           try {                  Session session=getSession();               Query queryObject = session.createQuery(sqlBuffer.toString());               for(int i=0;i< list.size();i++){               if(rigor){                queryObject.setParameter(i, list.get(i));               }else{                queryObject.setParameter(i, "%"+list.get(i)+"%");               }                     }                          list=queryObject.list();              closeSession(session);        return list;           } catch (RuntimeException re) {              log.error("find by property name failed", re);              throw re;           }   }

2：hibernate多条件组合查询 之 sql 拼接

这个方法与上面第一节中的相同，只不过上面的方法是将搜索的多个条件在外部(即调用方)封装在了数组中。

public static void main(String[] args) {                        Session session = null;            Transaction tx = null;            List list = null;            Criteria criteria = null;                  try {                      session = HibernateSessionFactory.getSession();                tx = session.beginTransaction();                      DetachedCriteria detachedCriteria = DetachedCriteria                       .forClass(InfoTab.class);                                                String sql=" 1=1 ";                                Integer pareaId = 0; // 父地区；                Integer careaId = 0; // 子地区；                Integer categoryId = 0; // 类别；                String infoPrivider = "中介"; // 来源；                String houseType= "地下室"; // 房屋类型；                Integer hxBedRoom=0; // 室；                Integer hxLivingRoom=0; // 厅；                                String hzHouseStatus="有房出租"; // 合租类型;                String hzRequestSex="男"; // 性别要求；                String fixUp="尚未"; // 装修程度;                Integer lcHeightMolecuse=0; // 楼层；                String orientation="东南"; // 朝向要求;                Integer buildArea=2000; // 建筑面积；                Integer useArea=80; // 使用面积；                Integer rentalDigit=2000; // 租金/价格；                String title= "出租"; // 标题；                                if(pareaId!=0)                {                   sql+="pareaId=" + pareaId;                }                if(careaId!=0)                {                   sql+=" and careaId=" + careaId;                }                if(categoryId!=0)                {                   sql+=" and categoryId=" + categoryId;                }                if(!infoPrivider.equals(""))                {                   sql+=" and infoPrivider='" + infoPrivider + "'";                }                if(!houseType.equals(""))                {                   sql+=" and houseType='" + houseType +"'";                }                if(hxBedRoom!=0)                {                   sql+=" and hxBedRoom=" + hxBedRoom;                }                if(hxLivingRoom!=0)                {                   sql+=" and hxLivingRoom=" + hxLivingRoom;                }                if(!hzHouseStatus.equals(""))                {                   sql+=" and hzHouseStatus='" + hzHouseStatus + "'";                }                if(!hzRequestSex.equals(""))                {                   sql+=" and hzRequestSex='" + hzRequestSex +"'";                }                if(!fixUp.equals(""))                {                   sql+=" and fixUp='" + fixUp + "'";                }                if(lcHeightMolecuse!=0)                {                   sql+=" and lcHeightMolecuse=" + lcHeightMolecuse;                }                if(!orientation.equals(""))                {                   sql+=" and orientation='" + orientation + "'";                }                if(buildArea!=0)                {                    sql+=" and buildArea=" + buildArea;                }                if(useArea!=0)                {                   sql+=" and useArea=" + useArea;                }                if(rentalDigit!=0)                {                   sql+=" and rentalDigit=" + rentalDigit;                }                if(!title.equals(""))                {                   sql+=" and title like '%" + title + "%'";                }                sql+=" order by id desc";                                System.out.println(sql);                      detachedCriteria.add(Restrictions.sqlRestriction(sql));                      criteria = detachedCriteria.getExecutableCriteria(session);                      list = criteria.list();                                for(int i=0;i< list.size();i++)                {                   InfoTab infoTab = (InfoTab)list.get(i);                   System.out.println(infoTab.getTitle() +" "+ infoTab.getCategoryId() +" "+ infoTab.getPareaName() +" "+ infoTab.getCareaName() +" " + infoTab.getHouseType() +" " + infoTab.getInfoPrivider());                }                      tx.commit();                  } catch (HibernateException he) {                he.printStackTrace();            }         }

上述就是小编为大家分享的Hibernate中怎么实现多条件查询了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。