获取 java.sql.SQLException：结果集关闭后不允许操作

当我执行以下代码时，我得到一个异常。我想这是因为我正在准备与他相同的连接对象的新语句。我应该如何重写它，以便我可以创建一个准备好的语句并使用rs2？我是否必须创建新的连接对象，即使该连接指向同一数据库？

    try 
    {
        //Get some stuff
        String name = "";
        String sql = "SELECT `name` FROM `user` WHERE `id` = " + userId + " LIMIT 1;";
        ResultSet rs = statement.executeQuery(sql);
        if(rs.next())
        {
            name = rs.getString("name");
        }

        String sql2 = "SELECT `id` FROM  `profiles` WHERE `id` =" + profId + ";";
        ResultSet rs2 = statement.executeQuery(sql2);
        String updateSql = "INSERT INTO `blah`............"; 
        PreparedStatement pst = (PreparedStatement)connection.prepareStatement(updateSql);    

        while(rs2.next()) 
        { 
            int id = rs2.getInt("id");
            int stuff = getStuff(id);

            pst.setInt(1, stuff);
            pst.addBatch();

        }

        pst.executeBatch();

    } 
    catch (Exception e) 
    {
        e.printStackTrace();
    }

private int getStuff(int id)
{

    try
    {   

            String sql = "SELECT ......;";
            ResultSet rs = statement.executeQuery(sql);

            if(rs.next())
            {
                return rs.getInt("something");

            }
            return -1;
    }//code continues