String connectDB = "jdbc:jtds:sqlserver://172.16.1.15:1433;DatabaseName=YanBu";// 连接字符串换成这个                try {                    Class.forName("net.sourceforge.jtds.jdbc.Driver");//加载驱动换成这个                } catch (Exception e) {                    e.printStackTrace();                    System.out.println("加载数据库引擎失败");                    System.exit(0);                }                System.out.println("数据库驱动成功");                try {                    String user = "sa";                    String password = "sa";                    Connection con = DriverManager.getConnection(connectDB, user, password);// 连接数据库对象                    System.out.println("连接数据库成功");                    int i = 1;                    Statement statement = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);                    ResultSet resultSet = statement.executeQuery("select * from MaxSNs where Name = ‘质检单号‘");                    while (resultSet.next()) {//<code>ResultSet</code>最初指向第一行                        System.out.println(resultSet.getInt("SN"));//输出第n行，列名为“test_id”的值                        i += resultSet.getInt("SN");                        resultSet.updateInt("SN",i);                        resultSet.updateRow();                    }                    resultSet.close();                    statement.close();                } catch (SQLException e) {                    e.printStackTrace();                }