2、系统登陆界面
部分代码如下： public Login() {
JLabel l1=new JLabel(\用户名:\ JLabel l2=new JLabel(\密 码:\
JLabel l3=new JLabel(\请选择用户类型:\
JButton b1=new JButton(\确定\ JButton b2=new JButton(\取消\
JButton b3=new JButton(\新用户注册\
t1.setText(\
t1.setEditable(false); t2.setEditable(false); t2.setText(\
t2.setEchoChar('*');
ch.add(\ ch.add(\系统管理员\
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ch.add(\普通用户\
JPanel p=new JPanel(new BorderLayout()); JPanel g=new JPanel(new GridLayout(4,1)); JPanel j=new JPanel(new FlowLayout()); j.add(b1); j.add(b2); j.add(b3);
p.add(j,BorderLayout.SOUTH);
3、登陆后的界面
4、图书录入界面
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部分代码：
public InputBook(){
JLabel l1=new JLabel(\图书编号:\ JLabel l2=new JLabel(\图书名称:\ JLabel l3=new JLabel(\图书类别:\ JLabel l4=new JLabel(\图书出版日期:\ JLabel l5=new JLabel(\出版社名称:\ JLabel l6=new JLabel(\图书入库总数:\
JButton b1=new JButton(\入库登记\ JButton b2=new JButton(\重 置\
ch.add(\ ch.add(\计算机类\ ch.add(\医学类\ ch.add(\农业类\ ch.add(\文学类\ ch.add(\工程类\
Container c=f.getContentPane(); c.setLayout(new BorderLayout());
JPanel p=new JPanel(new BorderLayout()); JPanel g=new JPanel(new GridLayout(7,1)); JPanel j=new JPanel(new FlowLayout());
5、图书查询界面
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部分代码： try{
Class.forName(\ }catch(ClassNotFoundException e){
System.out.println(\ } try{
Connection conn=DriverManager.getConnection(\ Statement stmt=conn.createStatement();
ResultSet rs=stmt.executeQuery(\ while(rs.next()){
if(t1.getText().equals(rs.getString(\ t2.setText(rs.getString(\ t3.setText(rs.getString(\ t4.setText(rs.getString(\ t5.setText(\ }
else if(t1.getText().equals(\
JOptionPane.showMessageDialog(null,\请输入您要查找的图书!\\ break; } }
rs.close(); stmt.close(); conn.close();
}catch(SQLException ex){
JOptionPane.showMessageDialog(null,ex.getMessage(), \警\ }
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\警告告6、图书删除界面
部分代码：
//删除图书按钮事件
bt2.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent E) { try{ Class.forName(\ }catch(ClassNotFoundException e){ System.out.println(\ } try{ if(t1.getText().equals(\ JOptionPane.showMessageDialog(null,\删除失败!请输入您要删除的图书\提示信息\ } else{ Connection conn = DriverManager.getConnection(\ Statement stmt = conn.createStatement(); if(JOptionPane.showConfirmDialog(null,\单击'是'删除该记录,单击'否'取消该操作!\警告\ String sql = \ stmt.executeUpdate(sql); JOptionPane.showMessageDialog(null,\该条记录已被删除成功!\\提示信息\ stmt.close(); conn.close(); 7、办理图书证界面
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