Hibernate插入和读取数据实例【原创】
这两天都在研究Hibernate，大师们说有多好用我就看有多好用，不想说太多，以下是插入和读取的两个实例片段：
动作类（业务类）：
Public Class ServiceAncestor{??
public List query(String hql) throws Exception {//用于查询
?? ArrayList list = new ArrayList(0);
?? try {
??? session = factory.openSession();
??? query = session.createQuery(hql);
??? list = (ArrayList)query.list();
?? } catch (Exception e) {
??? logger.error(e);
??? throw e;
?? } finally {
??? list.trimToSize();
??? closeSession();
?? }
?? return list;
}
?
public void insert(Object tableBean) throws Exception {//用于插入
?? try {
??? session = factory.openSession();
??? tx = session.beginTransaction();
??? //
??? session.clear();
??? session.save(tableBean);
??? session.flush();
??? //
??? tx.commit();
?? } catch (Exception e) {
??? System.out.println("Hibernate插入的时候错啦：：！！！"+e);
??? e.printStackTrace();
??? logger.error(e);
??? tx.rollback();
??? throw e;
?? } finally {
??? closeSession();
?? }
}
}
读取并显示数据的jsp片段：
?? <% ????
???? try {
????????? ServiceAncestor sa = new ServiceAncestor();
????????? String hql = "select contribute.IName,contribute.IAmount,contribute.ILovemess from Contribute contribute";
????????? List list = sa.query(hql);
????????? for(int i = 0;i<list.size();i++){
????????? Object[] obj=(Object[])list.get(i);???????????
??????????? System.out.println(obj[0]);
???? ????? }
?????????
?????????
???? }catch (HibernateException err) {
?????
????? System.out.println("Hinernate查询父亲出错了啦！"+err);
????? err.printStackTrace();
???? }
%>
插入数据jsp片段：
??? try {
????????? ServiceAncestor sa = new ServiceAncestor();
????
???? Contribute contribute = new Contribute();
????
???? contribute.setStan("8");
???? System.out.println("Stan::"+contribute.getStan());
???? contribute.setIName(ctbName);
???? System.out.println("Name::"+contribute.getIName());
???? contribute.setCreatedt(new java.util.Date());
???? System.out.println("Createdt::"+contribute.getCreatedt());
???? contribute.setIAddres(ctbAdder);????
???? System.out.println("address|:;"+contribute.getIAddres());??????
???? contribute.setIAmount(ctbMoney);
???? System.out.println("money::"+contribute.getIAmount());
???? contribute.setTel(ctbNumber);
???? System.out.println("number::"+contribute.getTel());
???? contribute.setILovemess(comment);
???? System.out.println("comment::"+contribute.getILovemess());???
????
???? sa.insert(contribute);
????
??? } catch (HibernateException err) {
????
???? System.out.println("Hinernate出错了！"+err);
???? err.printStackTrace();
??? }
?
完毕~~
