Byte mainsrv = as.getIsDomainSrv();
        List<AccessServer> serverList = serverDao.findAll();
        if(serverList != null){
            for(AccessServer server : serverList){
                if(server.getServerIp().equals(as.getServerIp())){
                    System.out.println("要添加的服务器已存在");
                    oplogmgr.add(as.getServerIp(), 21, 1, as.getServerName(), 10);
                    return -10;   //返回一个特殊类型的错误代码
                }
                if ( (mainsrv.intValue() == 1) && (server.getIsDomainSrv().intValue() == 1) ){
                    System.out.println("已经存在主服务器");
                    oplogmgr.add(as.getServerIp(), 21, 1, as.getServerName(), 11);
                    return -11;
                }
                
            }
        }
        if (mainsrv.intValue() == 0 && countSelectServer().compareTo(getUkeyServerNumber()) >= 0) {
            System.out.println("ukey限制添加服务器");
            oplogmgr.add(as.getServerIp(), 21, 1, null, ErrorCode.UKEYDENEY);
            return ErrorCode.UKEYDENEY;
        }
        Session session=null;
        Transaction tx=null;
        try{
            session = serverDao.getSessionFactory().openSession();
            tx=session.beginTransaction();
            session.save(as);
            tx.commit();
        }
        catch (RuntimeException e) {
            e.printStackTrace();
            if (tx != null){
                tx.rollback();
            }
                }
        finally{
            if(session!=null){
                session.close();
            }
        }
        oplogmgr.add(as.getServerIp(), 21, 1, as.getServerName(), 0);