List ls = this.getHibernateTemplate().executeFind(new HibernateCallback<Object>() {
@Override
public Object doInHibernate(Session session) throws HibernateException, SQLException {
return session.createSQLQuery(sql).list();
}
});
String hql = "from EsbServiceV v where v.providerApp = "+ user.getApplicationId() +" and v.enabledFlag = 'Y'";
int rows = pageQueryParameter.getRows(); // 获取每页显示的条数
final int firstResult = (pageQueryParameter.getPage() - 1) * rows;
final int maxResults = rows;
final String hq = hql;
List<EsbServiceV> list = getHibernateTemplate().executeFind(new HibernateCallback<Object>() {
public Object doInHibernate(Session session) throws HibernateException, SQLException {
Query query = session.createQuery(hq);
query.setFirstResult(firstResult);
query.setMaxResults(maxResults);// 定义返回的记录数
List list = query.list();
return list;
}
});
1.
package com.techson.boct.dao;
import java.io.Serializable;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.CriteriaSpecification;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.hibernate.impl.CriteriaImpl;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.techson.boct.page.PagerModel;
public class BaseDao<T> extends HibernateDaoSupport{
public void delete(T o) {
this.getHibernateTemplate().delete(o);
}
public void insert(T o) {
this.getHibernateTemplate().save(o);
}
public T select(Class cls, Serializable id){
return (T) this.getHibernateTemplate().get(cls, id);
}
public void update(T o) {
this.getHibernateTemplate().update(o);
}
public List<T> getAll(String className) {
String queryString = "from "+className;
return this.getHibernateTemplate().find(queryString);
}
public List<T> getAllByQuery(String queryString) {
return this.getHibernateTemplate().find(queryString);
}
public Query getQuery(final String queryStr)
throws DataAccessException {
Query query = (Query) getHibernateTemplate().execute(
new HibernateCallback() {
public Object doInHibernate(Session session) {
return session.createQuery(queryStr);
}
});
return query;
}
public List<T> getListByQuery(final String queryString,final int pageSize,final int pageIndex) {
// Query query = this.getHibernateTemplate().getSessionFactory().getCurrentSession().createQuery(queryString);
Query query = getQuery(queryString);
query.setFirstResult(pageIndex * pageSize);
query.setMaxResults(pageSize);
return query.list();
}
public List<T> findByProperty(String className, String propertyName,
Object value) throws Exception {
String queryString = "from "+className+" where "+propertyName+" =?";
return this.getHibernateTemplate().find(queryString,value);
}
public int findByCriteriaCount(final DetachedCriteria detachedCriteria){
return (Integer) getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session session)throws HibernateException {
Criteria criteria = detachedCriteria.getExecutableCriteria(session);
return ((Integer) criteria.setProjection(Projections.rowCount()).uniqueResult()).intValue();
}
}, true);
}
public Map<String,Object> findPageByCriteria(final DetachedCriteria detachedCriteria,final int pageSize,final int pageIndex)throws Exception {
return (Map<String,Object>) getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session session)throws HibernateException {
Criteria criteria = detachedCriteria.getExecutableCriteria(session);
List items = criteria.setFirstResult(pageIndex).setMaxResults(pageSize).list();
int totalCount = items.size();
if(totalCount >= pageSize){
//移除order chanHo 20080415
List orderEntrys=null;
Field field=null;
CriteriaImpl impl = (CriteriaImpl) criteria;
try {
field = CriteriaImpl.class.getDeclaredField("orderEntries");
field.setAccessible(true);//这是关键：）
orderEntrys = (List)field.get(impl);
field.set(criteria,new ArrayList());
} catch (Exception e) {
e.printStackTrace();
}
criteria.setProjection(null);
criteria.setFirstResult(0).setMaxResults(1);
totalCount = ((Integer) criteria.setProjection(Projections.rowCount()).uniqueResult()).intValue();
criteria.setProjection(null);
criteria.setProjection(null);
criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
//恢復order , 不過不建議重用detachedCriteria ,目前Criteria有很多問題!後面的代碼可以注釋掉
/* List innerOrderEntries = null;
try {
innerOrderEntries = (List)field.get(criteria);
} catch (Exception e) {
e.printStackTrace();
}
for(int i=0;i<orderEntrys.size();i++){
innerOrderEntries.add(orderEntrys.get(i));
} */
}
Map reyurnMap = new HashMap<String,Object>();
reyurnMap.put("count", totalCount);
reyurnMap.put("page", items);
return reyurnMap;
}
}, true);
}
public List<T> findPageByCriteriaOrderBy(final DetachedCriteria detachedCriteria,final int pageSize,final int pageIndex)throws Exception {
return (List<T>) getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session session)throws HibernateException {
Criteria criteria = detachedCriteria.getExecutableCriteria(session);
List items = criteria.setFirstResult(pageIndex * pageSize).setMaxResults(pageSize).list();
return items;
}
}, true);
}
public List<T> findByCriteria(DetachedCriteria detachedCriteria)
throws Exception {
return this.getHibernateTemplate().findByCriteria(detachedCriteria);
}
public Map<String,Object> findPageByQuery(final String queryStr,final int pageSize,final int pageIndex)throws Exception {
return (Map<String,Object>) getHibernateTemplate().execute(
new HibernateCallback() {
public Object doInHibernate(Session session)throws HibernateException {
Query query = session.createQuery(queryStr);
List items = query.setFirstResult(pageIndex * pageSize).setMaxResults(pageSize).list();
long totalCount = items.size();
if(totalCount == pageSize || totalCount==0){
int fromIndex = queryStr.toLowerCase().indexOf("from");
int orderIndex = queryStr.toLowerCase().indexOf("order");
String countQueryStr = "";
if(orderIndex!=-1){
countQueryStr = "select count(*) " + queryStr.substring(fromIndex,orderIndex);
}else{
countQueryStr = "select count(*) " + queryStr.substring(fromIndex);
}
Query CountQuery = session.createQuery(countQueryStr);
totalCount = (Long)CountQuery.uniqueResult();
System.out.println("totalCount=" + totalCount);
}else if(totalCount>0 && totalCount<pageSize){
totalCount = pageSize * pageIndex + totalCount;
}
Map reyurnMap = new HashMap<String,Object>();
reyurnMap.put("count", totalCount);
reyurnMap.put("page", items);
return reyurnMap;
}
}, true);
}
public PagerModel<T> findPageByCriteria(final int offset, final int pageSize,final DetachedCriteria detachedCriteria) throws Exception {
return (PagerModel<T>)getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session session)throws HibernateException {
Criteria criteria = detachedCriteria.getExecutableCriteria(session);
List items = criteria.setFirstResult(offset).setMaxResults(pageSize).list();
int totalCount = items.size();
if(totalCount>=pageSize) {
List orderEntrys=null;
Field field=null;
CriteriaImpl impl = (CriteriaImpl) criteria;
try {
field = CriteriaImpl.class.getDeclaredField("orderEntries");
field.setAccessible(true);//这是关键：）
orderEntrys = (List)field.get(impl);
field.set(criteria,new ArrayList());
} catch (Exception e) {
e.printStackTrace();
}
criteria.setProjection(null);
criteria.setFirstResult(0).setMaxResults(1);
totalCount = ((Integer) criteria.setProjection(Projections.rowCount()).uniqueResult()).intValue();
criteria.setProjection(null);
criteria.setProjection(null);
criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
} else {
List orderEntrys=null;
Field field=null;
CriteriaImpl impl = (CriteriaImpl) criteria;
try {
field = CriteriaImpl.class.getDeclaredField("orderEntries");
field.setAccessible(true);//���ǹؼ�
orderEntrys = (List)field.get(impl);
field.set(criteria,new ArrayList());
} catch (Exception e) {
e.printStackTrace();
}
criteria.setProjection(null);
criteria.setFirstResult(0).setMaxResults(1);
totalCount = ((Integer) criteria.setProjection(Projections.rowCount()).uniqueResult()).intValue();
}
PagerModel<T> pm = new PagerModel<T>();
pm.setTotal(totalCount);
pm.setDatas(items);
pm.setPageSize(pageSize);
return pm;
}
},true);
}
}
具体实例：
删除：
public void deleteTypeEQ2(Long id ,String type){
String hql = "delete from CompareHotel h where h.type = ? and h.hotelid = ?" ;
Query query = getBaseDao().getQuery(hql);
query.setLong(1, id);
query.setString(0, type);
query.executeUpdate();
log.info("deleteTypeEQ2 delete ok.");
}
public List<CompareHotel> findByIdAndType(String countryCode,String type) throws SystemException{
String hql = "from CompareHotel h where h.type = "+type+" and h.countrycode = '" + countryCode+"'";
Query query = this.getBaseDao().getQuery(hql);
return query.list();
}
public void deleteAll(String countrycode) throws SystemException {
String hql = "delete from CompareHotel gh where gh.countrycode = ?";
Query query = getBaseDao().getQuery(hql);
query.setString(0, countrycode);
query.executeUpdate();
}
public List<Agentmarket> findById(long id)throws SystemException{
DetachedCriteria detachedCriteria = DetachedCriteria.forClass(Agentmarket.class);
detachedCriteria.add(Expression.eq("agent.internalid", id));
List<Agentmarket> agentmarket = this.getBaseDao().findByCriteria(detachedCriteria);
return agentmarket;
}
public List<CompareHotel> findByhotelIdAndType(Long id,String type) throws SystemException{
DetachedCriteria detachedCriteria = DetachedCriteria.forClass(CompareHotel.class);
detachedCriteria.add(Expression.eq("hotelid",id));
detachedCriteria.add(Expression.eq("type",type));
List<CompareHotel> l = (List<CompareHotel>)this.getBaseDao().findByCriteria(detachedCriteria);
return l;
}
public int deleteAllByPackageId(List<Long> packageId) {
String hql=" delete from PackageHotel ph where ph.packageId in (:packageId) ";
Query query = this.baseDao.getQuery(hql);
query.setParameterList("packageId", packageId);
int num = query.executeUpdate();
return num;
}
public Query getQuery(final String queryStr)
throws DataAccessException {
Query query = (Query) getHibernateTemplate().execute(
new HibernateCallback() {
public Object doInHibernate(Session session) {
return session.createQuery(queryStr);
}
});
return query;
}
public List<Hotelbookheader> findBysfno(String sfno) throws SystemException {
String hql = " FROM Hotelbookheader hbh where hbh.sfno =:sfno";
Query query = this.getBaseDao().getQuery(hql);
query.setParameter("sfno", sfno);
List<Hotelbookheader> list = query.list();
if (list.size() > 0) {
return list;
} else {
return null;
}
}
。。。