hibernate 多條件組合查詢之sql拼接?

?

[java]?view plaincopyprint?

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;?//?父地區；???

Integer?careaId?=?0;?//?子地區；???

Integer?categoryId?=?0;?//?類別；???

String?infoPrivider?=?"中介";?//?來源；???

String?houseType=?"地下室";?//?房屋類型；???

Integer?hxBedRoom=0;?//?室；???

Integer?hxLivingRoom=0;?//?廳；???

String?hzHouseStatus="有房出租";?//?合租類型;???

String?hzRequestSex="男";?//?性別要求；???

String?fixUp="尚未";?//?裝修程度;???

Integer?lcHeightMolecuse=0;?//?樓層；???

String?orientation="東南";?//?朝向要求;???

Integer?buildArea=2000;?//?建筑面積；???

Integer?useArea=80;?//?使用面積；???

Integer?rentalDigit=2000;?//?租金/價格；???

String?title=?"出租";?//?標題；???

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();???

}???

} ?

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