基于MVC的客户管理系统

package com.tarena.bank.biz; import java.util.Set; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.Transaction; import com.tarena.bank.persist.AcctDAOFactory; import com.tarena.bank.persist.HbnUtil; import com.tarena.bank.persist.IAcctDAO; public class AccountServiceHbnImpl implements IAccountService { private IAcctDAO dao = AcctDAOFactory.getDAO("hbn"); public void createAcct(Account act) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); try { tran = s.beginTransaction(); dao.save(act); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } } public void deposite(String actNo, double amount) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); Account act = null; try { tran = s.beginTransaction(); act = dao.findByActNo(actNo); act.deposit(amount); // dao.update(act); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } } public double getBal(String actNo) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); double bal = 0.0; try { tran = s.beginTransaction(); bal = dao.findByActNo(actNo).getBal(); // dao.update(act, s); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } return bal; } public void removeAcct(String actNo) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); try { tran = s.beginTransaction(); dao.delete(actNo); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } } public void tranfer(String from, String to, double amount) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); Account act1 = null; Account act2 = null; try { tran = s.beginTransaction(); act1 = dao.findByActNo(from); act2 = dao.findByActNo(to); act1.withdraw(amount); act2.deposit(amount); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } } public void withdraw(String actNo, double amount) { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); Account act = null; try { tran = s.beginTransaction(); act = dao.findByActNo(actNo); act.withdraw(amount); // dao.update(act, s); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } } public String getactNoandzipcode() { Session s = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); String actNozipcode = ""; try { tran = s.beginTransaction(); actNozipcode = dao.createQuery(); tran.commit(); } catch (HibernateException e) { e.printStackTrace(); if (tran == null) { tran.rollback(); } } return actNozipcode; } public Set<Address> getAddr(String actNo) { Session s = null; Set<Address> addr = null; Transaction tran = null; s = HbnUtil.getSessionFactory().getCurrentSession(); try { tran = s.beginTransaction(); addr = dao.findByActNo(actNo).getAddrs(); tran.commit(); } catch (Exception e) { e.printStackTrace(); if (tran != null) tran.rollback(); } return addr; } }