@Transactional
 public List queryAccountByUsername(String username) {
   // TODO Auto-generated method stub
   return accountInfoDAO.queryAccountByUsername(username);
 }
 @Transactional
 public int updateAccountById(String id) {
   return accountInfoDAO.updateAccountById(id);
 }
 @Transactional
 public List queryAccountById(String id) {
   // TODO Auto-generated method stub
   return accountInfoDAO.queryAccountById(id);
 }
 @Transactional
 public void deleteAccountInfo(AccountInfo accountInfo) {
   // TODO Auto-generated method stub
   accountInfoDAO.deleteAccountInfo(accountInfo);
 }
 @Transactional
 public AccountInfo findAccountInfoById(String id) {
   // TODO Auto-generated method stub
   return accountInfoDAO.findAccountInfoById(id);
 }
 @Transactional
 public void persistAccountInfo(AccountInfo accountInfo) {
   // TODO Auto-generated method stub
   accountInfoDAO.persistAccountInfo(accountInfo);
 }