怎么在FlowLayoutPanel加滚动条，右边的和上边的

import java.awt.*;import java.awt.event.*;import java.sql.*;import javax.swing.*;public class MainFrame extends Frame {    private String dbURL = "jdbc:mysql://localhost/book?useUnicode=true&characterEncoding=GBK"; // 数据库标识名    private String user = "root"; // 数据库用户    private String password = ""; // 数据库用户密码    private Panel borderpanel = new Panel();    private Panel flowpanel;    private Panel gridpanel;    private JLabel jl1 = new JLabel("序号：" +"     "+ "\t书名：" + "             " + "\t副标题：" + "                              "            + "\t作者：" + "           " + "\t国籍：" + "       " + "\t出版社：" + "                 " + "\t价格：" + "       "            + "\tISBN：" + "               ");           public MainFrame(String title) throws SQLException, ClassNotFoundException {        super(title);          MenuBar mb = new MenuBar();          this.setMenuBar(mb);          Menu m1 = new Menu("菜单");          Menu m2 = new Menu("编辑");          mb.add(m1);          mb.add(m2);          MenuItem mi1 = new MenuItem("添加一本书");          mi1.addActionListener(new ActionListener() {               public void actionPerformed(ActionEvent e) {                   UpdateDemo aa=new UpdateDemo();                   aa.setVisible(true);               }              });                    MenuItem mi2 = new MenuItem("退出");          mi2.addActionListener(new ActionListener() {           public void actionPerformed(ActionEvent e) {            System.exit(0);           }          });          m1.add(mi1);          m1.add(mi2);        setSize(1024, 768);// 窗口大小1024*768        //setLocation(0,0);// 距离左上角图标距离100,100        setLayout(new GridLayout(2, 1));//将窗口布局设置为网格式布局，网格的行数和列数分别是2和1.        setFlowLayoutPanel();        add(flowpanel);    //flowpanel.add(jscbHort,FlowLayout.RIGHT);                //flowpanel.add(jscbVert, FlowLayout.RIGHT);        borderpanel.setLayout(new BorderLayout());        borderpanel.add(jl1, BorderLayout.NORTH);        add(borderpanel);        addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {                System.exit(0);            }        });    }    public void setFlowLayoutPanel() throws SQLException,            ClassNotFoundException {        flowpanel = new Panel();        FlowLayout layout = new FlowLayout();        layout.setAlignment(FlowLayout.LEFT);//设置图标靠左        flowpanel.setLayout(layout);        Class.forName("com.mysql.jdbc.Driver"); // 加载驱动器        Connection con = DriverManager.getConnection(dbURL, user, password); // 获取连接        String sqlStr = "select * from user"; // SQL查询语句        Statement st = con.createStatement(); // 获取PreparedStatement对象        ResultSet rs = st.executeQuery(sqlStr); // 执行查询        while (rs.next()) { // 遍历ResultSet            String str=rs.getString("url");            final String strid=rs.getString("id"); // 获取数据            final String strtitle=rs.getString("title");            final String strsubhead=rs.getString("subhead");            final String strauthors=rs.getString("authors");            final String strnationality=rs.getString("nationality");            final String strpublisher=rs.getString("publisher");            final String strprice=rs.getString("price");            final String strisbn=rs.getString("isbn");        JButton btnSmall=new JButton("");        ImageIcon icon = new ImageIcon(str);        btnSmall.setIcon(scaleImage(icon));            btnSmall.setSize(100, 150);            btnSmall.setVisible(true);            btnSmall.invalidate();            flowpanel.add(btnSmall);            btnSmall.addActionListener(new ActionListener() {                public void actionPerformed(ActionEvent e) {                    jl1.setText("序号：" + strid + "\t书名：" + strtitle + "\t副标题："                            + strsubhead + "\t作者：" + strauthors + "\t国籍："                            + strnationality + "\t出版社：" + strpublisher                            + "\t价格：" + strprice + "\tISBN：" + strisbn);                }            });        }    }    private ImageIcon scaleImage(ImageIcon icon) {        int width = icon.getIconWidth();        // System.out.print(width);        int height = icon.getIconHeight();        // if (width <= 100 && height <= 150) {        // return icon;        // }        Image image = icon.getImage();        image = image.getScaledInstance(100, 150, Image.SCALE_DEFAULT);        return new ImageIcon(image);    }    public static void main(String[] args) throws SQLException,            ClassNotFoundException {        MainFrame yf = new MainFrame("我的书架");        yf.setVisible(true);    }}