hibernate实现增删改查的各种方法
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hibernate实现增删改查的各种方法
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1》接口（主要是增刪改查的接口）BaseDao.java
[java] view plain copy /**? ?*? ?*?@author?fly.zhou? ?*/?? public?interface?IBaseDao?{?? ?? ????//增加對應實體的一條記錄???? ????public?boolean?save(Object?o);?? ?? ????//更新對應實體的一條記錄?? ????public?boolean?update(Object?o);?? ?? ????//增加或者更新對應實體的一條記錄?? ????public?boolean?saveOrUpdate(Object?o);?? ?? ????//保存一系列對象集合?? ????public?boolean?saveOrUpdateAll(Collection?l);?? ?? ????//刪除對應實體的一條記錄?? ????public?boolean?delete(Object?o);?? ?? ????//根據id刪除對應實體的一條記錄?? ????public?boolean?delete(Class?c,?Serializable?id);?? ?? ????//執行hql語句刪除一條記錄?? ????public?Integer?delete(String?hql,?Object...?values);?? ?? ????//刪除一系列數據?? ????public?boolean?deleteAll(Collection?l);?? ?? ????//執行hql語句查找?? ????public?List?find(String?hql);?? ?? ????//分頁查詢，多參數條件?? ????public?List?find(String?hql,?DataGridReq?dgr,?List?values);?? ?? ????//分頁查詢，多參數條件?? ????public?List?find(String?hql,?DataGridReq?dgr,?Object...?values);?? ?? ????//不帶分頁查詢，多參數條件?? ????public?List?find(String?hql,?Object...?values);?? ?????? ????//不帶分頁查詢，多參數條件?? ????public?boolean?update(String?hql,?Object...?values);?? ?? ????//根據主鍵ID查詢對應實體的一條記錄?? ????public?Object?get(Class?clazz,?Serializable?id);?? ?? ????//獲取某實體對象?? ????public?Object?load(Class?c,?Serializable?id);?? ?? ????//獲取總記錄數?? ????public?Long?total(String?hql,?List?values);?? ?? ????//獲取總記錄數?? ????public?Long?total(String?hql,?Object...?values);?? ?? ????//更新對應實體的某一條記錄?? ????public?boolean?updateOneByProperty(Class?clazz,?Serializable?id,?String?pName,?Object?pValue);?? ?? ????//更新對應實體的某幾條記錄?? ????public?boolean?updateOneByPropertys(Class?clazz,?Serializable?id,?List<String>?pName,?List<Object>?pValue);?? ?? ????//更新對應實體的某幾條記錄(封裝成map)?? ????public?boolean?updateOneByPropertys(Class?clazz,?Serializable?id,?Map<String,?Object>?map);?? ?? ????//根據屬性名以及對應的屬性值查找一條記錄?? ????public?Object?getSingleByProperty(Class?clazz,?String?pName,?Object?pValue);?? ?? ????//判斷是否有對應的屬性名和屬性值存在，存在返回true?? ????public?boolean?ifHasOneByProperty(Class?clazz,?String?pName,?Object?pValue);?? ?? ????//根據一系列屬性以及對應的屬性值查詢一條記錄?? ????public?Object?getSingleByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue);?? ?? ????//判斷是否有一系列對應的屬性名和屬性值存在，存在返回true?? ????public?boolean?ifHasOneByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue);?? ?? ????//根據一系列屬性以及對應的屬性值(封裝成Map)查詢一條記錄?? ????public?Object?getSingleByPropertys(Class?clazz,?Map<String,?Object>?map);?? ?? ????//判斷是否有一系列對應的屬性名和屬性值(封裝成Map)存在，存在返回true?? ????public?boolean?ifHasOneByPropertys(Class?clazz,?Map<String,?Object>?map);?? ?? ????//通過某一對應的屬性名和屬性值，查詢某一個屬性的值?? ????public?Object?getValueByPropertys(Class?clazz,?Map<String,?Object>?map,?String?selectName);?? ?? ????//通過一系列對應的屬性名和屬性值，查詢某一個屬性的值?? ????public?Object?getValueByProperty(Class?clazz,?String?pName,?Object?pValue,?String?selectName);?? ?? ????//通過一系列對應的屬性名和屬性值，查詢某一個屬性的值?? ????public?Object?getValueByPropertys(Class?clazz,?List<String>?pNames,?List<Object>?pValues,?String?selectName);?? ?? ????//查詢對應實體的所有記錄?? ????public?List<Object>?getObjects(Class?clazz);?? ?? ????//查詢符合屬性名以及對應的屬性值的一系列記錄?? ????public?List<Object>?getObjectsByProperty(Class?clazz,?String?pName,?Object?pValue);?? ?? ????//根據任意屬性查詢名以及對應的屬性值的一系列記錄?? ????public?List<Object>?getObjectsByAnyProperty(Class?clazz,?List<String>?pName,?List<Object>?pValue);?? ?? ????//查詢符合一系列屬性名以及對應的屬性值的一系列記錄?? ????public?List<Object>?getObjectsByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue);?? ?? ????//根據某屬性對應的屬性值在某一范圍內的一系列記錄?? ????public?List<Object>?getObjectsByProperty(Class?clazz,?String?pName,?String?operator,?Object?pValue);?? ?? ????//根據某屬性對應的屬性值在某一范圍內的一系列記錄?? ????public?List<Object>?getObjectsByPropertys(Class?clazz,?List<String>?pName,?List<String>?operator,?List<Object>?pValue);?? }??
public?class?BaseDaoImpl?implements?IBaseDao?{?? ?? ????private?static?final?Logger?logger?=?Logger.getLogger(BaseDaoImpl.class);?? ????private?HibernateTemplate?hibernateTemplate;?? ?? ????public?HibernateTemplate?getHibernateTemplate()?{?? ????????hibernateTemplate.setCacheQueries(true);//?開啟二級查詢緩存?? ????????return?hibernateTemplate;?? ????}?? ?? ????@Autowired?? ????public?void?setHibernateTemplate(HibernateTemplate?hibernateTemplate)?{?? ????????this.hibernateTemplate?=?hibernateTemplate;?? ????}?? ?? ????@Override?? ????public?boolean?delete(Object?o)?{?? //????????logger.info("刪除");?? ????????try?{?? ????????????this.getHibernateTemplate().delete(o);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?delete(Class?c,?Serializable?id)?{?? //????????logger.info("刪除");?? ????????try?{?? ????????????this.getHibernateTemplate().delete(get(c,?id));?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?Integer?delete(final?String?hql,?final?Object...?values)?{?? ????????return?this.getHibernateTemplate().execute(new?HibernateCallback<Integer>()?{?? ?? ????????????@Override?? ????????????public?Integer?doInHibernate(Session?session)?throws?HibernateException,?SQLException?{?? ????????????????Query?q?=?session.createQuery(hql);?? ????????????????if?(values?!=?null?&&?values.length?>?0)?{?? ????????????????????for?(int?i?=?0;?i?<?values.length;?i++)?{?? ????????????????????????q.setParameter(i,?values[i]);?? ????????????????????}?? ????????????????}?? ????????????????return?q.executeUpdate();?? ????????????}?? ????????});?? ????}?? ?? ????@Override?? ????public?boolean?deleteAll(Collection?l)?{?? //????????logger.info("刪除");?? ????????try?{?? ????????????this.getHibernateTemplate().deleteAll(l);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?update(Object?o)?{?? //????????logger.info("更新");?? ????????try?{?? ????????????this.getHibernateTemplate().update(o);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????e.printStackTrace();?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?save(Object?o)?{?? //????????logger.info("保存");?? ????????try?{?? ????????????this.getHibernateTemplate().save(o);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?saveOrUpdate(Object?o)?{?? ????????try?{?? ????????????this.getHibernateTemplate().saveOrUpdate(o);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?saveOrUpdateAll(Collection?l)?{?? //????????logger.info("編輯");?? ????????try?{?? ????????????this.getHibernateTemplate().saveOrUpdateAll(l);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?List?find(String?hql)?{?? //????????logger.info("查詢");?? ????????return?this.getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?List?find(final?String?hql,?final?DataGridReq?dgr,?final?List?values)?{?? ????????return?this.getHibernateTemplate().execute(new?HibernateCallback<List>()?{?? ?? ????????????@Override?? ????????????public?List?doInHibernate(Session?session)?throws?HibernateException,?SQLException?{?? ????????????????Query?q?=?session.createQuery(hql);?? ????????????????if?(values?!=?null?&&?values.size()?>?0)?{?? ????????????????????for?(int?i?=?0;?i?<?values.size();?i++)?{?? ????????????????????????q.setParameter(i,?values.get(i));?? ????????????????????}?? ????????????????}?? ????????????????if?(dgr?==?null)?{?? ????????????????????return?q.list();?? ????????????????}?? ????????????????return?q.setFirstResult(dgr.getStart()).setMaxResults(dgr.getLimit()?*?dgr.getPage()).list();?? ????????????}?? ????????});?? ????}?? ?? ????@Override?? ????public?List?find(final?String?hql,?final?DataGridReq?dgr,?final?Object...?values)?{?? ????????return?this.getHibernateTemplate().execute(new?HibernateCallback<List>()?{?? ?? ????????????@Override?? ????????????public?List?doInHibernate(Session?session)?throws?HibernateException,?SQLException?{?? ????????????????Query?q?=?session.createQuery(hql);?? ????????????????if?(values?!=?null?&&?values.length?>?0)?{?? ????????????????????for?(int?i?=?0;?i?<?values.length;?i++)?{?? ????????????????????????q.setParameter(i,?values[i]);?? ????????????????????}?? ????????????????}?? ????????????????if?(dgr?==?null)?{?? ????????????????????return?q.list();?? ????????????????}?? ????????????????return?q.setFirstResult(dgr.getStart()).setMaxResults(dgr.getLimit()?*?dgr.getPage()).list();?? ????????????}?? ????????});?? ????}?? ?? ????@Override?? ????public?List?find(String?hql,?Object...?values)?{?? ????????return?this.getHibernateTemplate().find(hql,?values);?? ????}?? ?? ????@Override?? ????public?boolean?update(final?String?hql,?final?Object...?values)?{?? ????????try?{?? ????????????this.getHibernateTemplate().bulkUpdate(hql,?values);?? ????????????return?true;?? ????????}?catch?(Exception?e)?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?Object?get(Class?c,?Serializable?id)?{?? ????????return?this.getHibernateTemplate().get(c,?id);?? ????}?? ?? ????@Override?? ????public?Object?load(Class?c,?Serializable?id)?{?? ????????return?this.getHibernateTemplate().load(c,?id);?? ????}?? ?? ????@Override?? ????public?Long?total(final?String?hql,?final?List?values)?{?? ????????return?this.getHibernateTemplate().execute(new?HibernateCallback<Long>()?{?? ?? ????????????@Override?? ????????????public?Long?doInHibernate(Session?session)?throws?HibernateException,?SQLException?{?? ????????????????Query?q?=?session.createQuery(hql);?? ????????????????if?(values?!=?null?&&?values.size()?>?0)?{?? ????????????????????for?(int?i?=?0;?i?<?values.size();?i++)?{?? ????????????????????????q.setParameter(i,?values.get(i));?? ????????????????????}?? ????????????????}?? ????????????????return?(Long)?q.uniqueResult();?? ????????????}?? ????????});?? ????}?? ?? ????@Override?? ????public?Long?total(final?String?hql,?final?Object...?values)?{?? ????????return?this.getHibernateTemplate().execute(new?HibernateCallback<Long>()?{?? ?? ????????????@Override?? ????????????public?Long?doInHibernate(Session?session)?throws?HibernateException,?SQLException?{?? ????????????????Query?q?=?session.createQuery(hql);?? ????????????????if?(values?!=?null?&&?values.length?>?0)?{?? ????????????????????for?(int?i?=?0;?i?<?values.length;?i++)?{?? ????????????????????????q.setParameter(i,?values[i]);?? ????????????????????}?? ????????????????}?? ????????????????return?(Long)?q.uniqueResult();?? ????????????}?? ????????});?? ????}?? ?? ????@Override?? ????public?boolean?updateOneByProperty(Class?clazz,?Serializable?id,?String?pName,?Object?pValue)?{?? ????????String?hql?=?"update?"?+?clazz.getName()?+?"?entity?set?entity."?+?pName?+?"?=?'"?+?pValue?+?"'?where?entity.id?=?"?+?id;?? ????????getHibernateTemplate().bulkUpdate(hql);?? ????????return?true;?? ????}?? ?? ????@Override?? ????public?boolean?updateOneByPropertys(Class?clazz,?Serializable?id,?List<String>?pName,?List<Object>?pValue)?{?? ????????String?hql?=?"update?"?+?clazz.getName()?+?"?entity?set?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?=?'"?+?pValue.get(i)?+?"',?entity.";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?=?'"?+?pValue.get(maxIndex)?+?"'where?entity.id?=?"?+?id;?? ????????System.out.println(hql);?? ????????getHibernateTemplate().bulkUpdate(hql);?? ????????return?true;?? ????}?? ?? ????@Override?? ????public?boolean?updateOneByPropertys(Class?clazz,?Serializable?id,?Map<String,?Object>?map)?{?? ????????String?hql?=?"update?"?+?clazz.getName()?+?"?entity?set?entity.";?? ????????Set?set?=?map.entrySet();?? ????????if?(set?!=?null)?{?? ????????????Iterator?iterator?=?set.iterator();?? ????????????while?(iterator.hasNext())?{?? ????????????????Entry?entry?=?(Entry)?iterator.next();?? ????????????????Object?key?=?entry.getKey();?? ????????????????Object?value?=?entry.getValue();?? ????????????????hql?+=?key?+?"?=?'"?+?value?+?"'?and?entity.";?? ????????????}?? ????????}?? ????????hql?=?hql.substring(0,?hql.length()?-?12);?? ????????hql?+=?"'where?entity.id?=?"?+?id;?? ????????System.out.println(hql);?? ????????getHibernateTemplate().bulkUpdate(hql);?? ????????return?true;?? ????}?? ?? ????/**? ?????*?根據屬性查詢? ?????*? ?????*?@param?clazz? ?????*?@param?pName? ?????*?@param?pValue? ?????*?@return? ?????*/?? ????@Override?? ????public?Object?getSingleByProperty(Class?clazz,?String?pName,?Object?pValue)?{?? ?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity."?+?pName?+?"?=?'"?+?pValue?+?"'";?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?os.get(0);?? ????????}?else?{?? ????????????return?null;?? ????????}?? ????}?? ?? ????/**? ?????*?根據屬性查詢? ?????*? ?????*?@param?clazz? ?????*?@param?pName? ?????*?@param?pValue? ?????*?@return? ?????*/?? ????@Override?? ????public?boolean?ifHasOneByProperty(Class?clazz,?String?pName,?Object?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity."?+?pName?+?"?=?'"?+?pValue?+?"'";?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?true;?? ????????}?else?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????/**? ?????*?根據屬性查詢? ?????*? ?????*?@param?clazz? ?????*?@param?pName? ?????*?@param?pValue? ?????*?@return? ?????*/?? ????@Override?? ????public?List<Object>?getObjectsByAnyProperty(Class?clazz,?List<String>?pName,?List<Object>?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?=?'"?+?pValue.get(i)?+?"'?or?entity.";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?=?'"?+?pValue.get(maxIndex)?+?"'";?? ????????System.out.println(hql);?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?os;?? ????????}?else?{?? ????????????return?null;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?ifHasOneByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?=?'"?+?pValue.get(i)?+?"'?and?entity.";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?=?'"?+?pValue.get(maxIndex)?+?"'";?? ????????System.out.println(hql);?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?true;?? ????????}?else?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????@Override?? ????public?Object?getSingleByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue)?{?? ?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?=?'"?+?pValue.get(i)?+?"'?and?entity.";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?=?'"?+?pValue.get(maxIndex)?+?"'";?? ????????System.out.println(hql);?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?os.get(0);?? ????????}?else?{?? ????????????return?null;?? ????????}?? ????}?? ?? ????@Override?? ????public?Object?getSingleByPropertys(Class?clazz,?Map<String,?Object>?map)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????Set?set?=?map.entrySet();?? ????????if?(set?!=?null)?{?? ????????????Iterator?iterator?=?set.iterator();?? ????????????while?(iterator.hasNext())?{?? ????????????????Entry?entry?=?(Entry)?iterator.next();?? ????????????????Object?key?=?entry.getKey();?? ????????????????Object?value?=?entry.getValue();?? ????????????????hql?+=?key?+?"?=?'"?+?value?+?"'?and?entity.";?? ????????????}?? ????????}?? ????????hql?=?hql.substring(0,?hql.length()?-?12);?? ????????System.out.println("hql?=?"?+?hql);?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?os.get(0);?? ????????}?else?{?? ????????????return?null;?? ????????}?? ????}?? ?? ????@Override?? ????public?boolean?ifHasOneByPropertys(Class?clazz,?Map<String,?Object>?map)?{?? ?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????Set?set?=?map.entrySet();?? ????????if?(set?!=?null)?{?? ????????????Iterator?iterator?=?set.iterator();?? ????????????while?(iterator.hasNext())?{?? ????????????????Entry?entry?=?(Entry)?iterator.next();?? ????????????????Object?key?=?entry.getKey();?? ????????????????Object?value?=?entry.getValue();?? ????????????????hql?+=?key?+?"?=?'"?+?value?+?"'?and?entity.";?? ????????????}?? ????????}?? ????????hql?=?hql.substring(0,?hql.length()?-?12);?? ????????List<Object>?os?=?getHibernateTemplate().find(hql);?? ????????if?(os?!=?null?&&?!os.isEmpty())?{?? ????????????return?true;?? ????????}?else?{?? ????????????return?false;?? ????????}?? ????}?? ?? ????/**? ?????*?查詢所有? ?????*/?? ????@Override?? ????public?List<Object>?getObjects(Class?clazz)?{?? ????????String?hql?=?"from?"?+?clazz.getName();?? ????????List?list?=?getHibernateTemplate().find(hql);?? ????????return?list;?? ????}?? ?? ????/**? ?????*?根據屬性查詢?全部? ?????*? ?????*?@param?clazz? ?????*?@param?pName? ?????*?@param?pValue? ?????*?@return? ?????*/?? ????@Override?? ????public?List<Object>?getObjectsByProperty(Class?clazz,?String?pName,?Object?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity."?+?pName?+?"?=?'"?+?pValue?+?"'";?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?List<Object>?getObjectsByPropertys(Class?clazz,?List<String>?pName,?List<Object>?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?=?'"?+?pValue.get(i)?+?"'?and?";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?=?'"?+?pValue.get(maxIndex)?+?"'";?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????/**? ?????*?根據屬性查詢?全部? ?????*? ?????*?@param?clazz? ?????*?@param?pName? ?????*?@param?pValue? ?????*?@return? ?????*/?? ????@Override?? ????public?List<Object>?getObjectsByProperty(Class?clazz,?String?pName,?String?operator,?Object?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity."?+?pName?+?"?"?+?operator?+?pValue;?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?List<Object>?getObjectsByPropertys(Class?clazz,?List<String>?pName,?List<String>?operator,?List<Object>?pValue)?{?? ????????String?hql?=?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pName.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pName.get(i)?+?"?"?+?operator.get(i)?+?"?'"?+?pValue.get(i)?+?"'?and?";?? ????????}?? ????????hql?+=?pName.get(maxIndex)?+?"?"?+?operator.get(maxIndex)?+?"?'"?+?pValue.get(maxIndex)?+?"'";?? ????????System.out.println("hql?=?"?+?hql);?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?Object?getValueByPropertys(Class?clazz,?Map<String,?Object>?map,?String?selectName)?{?? ????????String?hql?=?"select?entity."?+?selectName?+?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????Set?set?=?map.entrySet();?? ????????if?(set?!=?null)?{?? ????????????Iterator?iterator?=?set.iterator();?? ????????????while?(iterator.hasNext())?{?? ????????????????Entry?entry?=?(Entry)?iterator.next();?? ????????????????Object?key?=?entry.getKey();?? ????????????????Object?value?=?entry.getValue();?? ????????????????hql?+=?key?+?"?=?'"?+?value?+?"'?and?entity.";?? ????????????}?? ????????}?? ????????hql?=?hql.substring(0,?hql.length()?-?12);?? ????????System.out.println("hql?=?"?+?hql);?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?Object?getValueByProperty(Class?clazz,?String?pName,?Object?pValue,?String?selectName)?{?? ????????String?hql?=?"select?entity."?+?selectName?+?"?from?"?+?clazz.getName()?+?"?entity?where?entity."?+?pName?+?"?=?'"?+?pValue?+?"'";?? ????????System.out.println("hql?=?"?+?hql);?? ????????return?getHibernateTemplate().find(hql);?? ????}?? ?? ????@Override?? ????public?Object?getValueByPropertys(Class?clazz,?List<String>?pNames,?List<Object>?pValues,?String?selectName)?{?? ????????String?hql?=?"select?entity."?+?selectName?+?"from?"?+?clazz.getName()?+?"?entity?where?entity.";?? ????????int?maxIndex?=?pNames.size()?-?1;?? ????????for?(int?i?=?0;?i?<?maxIndex;?i++)?{?? ????????????hql?+=?pNames.get(i)?+?"?=?'"?+?pValues.get(i)?+?"'?and?";?? ????????}?? ????????hql?+=?pNames.get(maxIndex)?+?"?=?'"?+?pValues.get(maxIndex)?+?"'";?? ????????System.out.println("hql?=?"?+?hql);?? ????????return?getHibernateTemplate().find(hql);?? ????}?? }??
Set?set?=?map.entrySet();?? if?(set?!=?null)?{?? ????Iterator?iterator?=?set.iterator();?? ????while?(iterator.hasNext())?{?? ????????Entry?entry?=?(Entry)?iterator.next();?? ????????Object?key?=?entry.getKey();?? ????????Object?value?=?entry.getValue();?? ????????hql?+=?key?+?"?=?'"?+?value?+?"'?and?entity.";?? ????}?? }??
public?class?XXXDaoImpl?extends?BaseDaoImpl?implements?IXXXDao{}??
2》接口的實現 BaseDaoImpl.java
[java] view plain copy3》值得注意的地方Map如何獲取key
[java] view plain copy4》這樣寫的話 會對項目省去大量的重復代碼，在對具體的實體操作時，我們只需要把對應實體的實現繼承BaseDaoImpl。
[java] view plain copy當然我們也可以在XXXDaoImpl里面添加此實體特殊的實現方法。
5》對于hibernate，有時候為了提高查詢和執行效率，我們只需要獲取部分數據，而不需要拿出關聯數據或者是整行的所有數據，這時候我們可以構造函數來解決這個問題。
總結
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