以下是我的三个类,和错误说明
DAO类
public Collection findall(){
List list=super.getHibernateTemplate().find("from Petinfo");
return list;
}
Service类
public Collection findall(int startid,int pageSize){
Query query =(Query) dao1.findall();
query.setFetchSize(2);
query.setFirstResult(startid);//限定查询返回检索结果中,从第一百条结果开始的20条记录
query.setMaxResults(pageSize);
List list=query.list();
return list;
} action中
ArrayList list=null;
list= (ArrayList) service1.findall(startid,pageSize); 报的错误为:
2008-01-24 10:57:59 StandardContext[/ElePetSys]Initializing WebApplicationContext for Struts ActionServlet 'action', module ''
2008-01-24 10:59:04 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
java.lang.ClassCastException: java.util.ArrayList
Service类应该怎样改
DAO类
public Collection findall(){
List list=super.getHibernateTemplate().find("from Petinfo");
return list;
}
Service类
public Collection findall(int startid,int pageSize){
Query query =(Query) dao1.findall();
query.setFetchSize(2);
query.setFirstResult(startid);//限定查询返回检索结果中,从第一百条结果开始的20条记录
query.setMaxResults(pageSize);
List list=query.list();
return list;
} action中
ArrayList list=null;
list= (ArrayList) service1.findall(startid,pageSize); 报的错误为:
2008-01-24 10:57:59 StandardContext[/ElePetSys]Initializing WebApplicationContext for Struts ActionServlet 'action', module ''
2008-01-24 10:59:04 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
java.lang.ClassCastException: java.util.ArrayList
Service类应该怎样改
ArrayList list=null;
list= (ArrayList) service1.findall(startid,pageSize);
String sql ="SELECT COUNT(*) FROM PRODUCTS";
Query query = session.createSQLQuery(sql);
List li=query.list();
但是这样代码就多了!