发布时间 : 星期四 文章java学校图书借阅管理系统课程设计报告更新完毕开始阅读
Area=new JTextArea(52,50); Area.setBounds(65,80,500,80); add(Area);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); setVisible(true); repaint(); }
public void actionPerformed(ActionEvent e) {
String x00=x0.getText(); Connection con; Statement sql; ResultSet rs; try{
Class.forName(\ }
catch(ClassNotFoundException e1) { System.out.print(e); } try {
con=DriverManager.getConnection(\ sql=con.createStatement();
rs=sql.executeQuery(\ while(rs.next()) {
Area.append(rs.getString(1)+\ Area.append(rs.getString(2)+\ Area.append(rs.getString(3)+\ Area.append(rs.getString(4)+\ Area.append(rs.getString(5)+\ Area.append(rs.getString(6)+\ Area.append(\ }
con.close(); }
catch(SQLException e2) { System.out.println(e); } } }
BookNO='\
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4.5 修改图书信息模块设计
截图
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源代码
class bookxg extends JFrame implements ActionListener {
JLabel j1; JTextField k1;
JButton button44, button55;
JTextField bookNO,bookName,Pub,Date,zuo,Total; bookxg()
{
setTitle(\修改图书信息\ setLocation(20,30); setSize(500,600);
setLayout(null);
j1=new JLabel(\请输入需修改的图书编号:\ add(j1);
j1.setBounds(190,20,160,20); k1=new JTextField(20); add(k1);
k1.setBounds(190,50,150,20); button44=new JButton(\查找\ add(button44);
button44.setBounds(360,50,60,20); button44.addActionListener(this); JLabel j2=new JLabel(\书籍编号:\ add(j2);
j2.setBounds(155,90,60,20); bookNO=new JTextField(10); add(bookNO);
bookNO.setBounds(215,90,150,20); JLabel j3=new JLabel(\书籍名称:\ add(j3);
j3.setBounds(155,130,80,20); bookName=new JTextField(20); add(bookName);
bookName.setBounds(215,130,150,20);
JLabel j4=new JLabel(\出版社名称:\ add(j4);
j4.setBounds(135,170,90,20); Pub=new JTextField(20); add(Pub);
Pub.setBounds(215,170,150,20); JLabel j5=new JLabel(\出版日期:\ add(j5);
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{
j5.setBounds(155,210,60,20); add(Date);
Date.setBounds(215,210,150,20); JLabel j6=new JLabel(\图书作者:\ add(j6);
j6.setBounds(155,250,60,20); zuo=new JTextField(20); add(zuo);
zuo.setBounds(215,250,150,20); JLabel j7=new JLabel(\书籍总数:\ add(j7);
j7.setBounds(155,290,60,20); Total=new JTextField(20);
Date=new JTextField(20);
add(Total);
Total.setBounds(215,290,150,20); button55=new JButton(\修改\ add(button55);
button55.setBounds(220,335,60,30); button55.addActionListener(this);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); setVisible(true); }
public void actionPerformed(ActionEvent e)
if(e.getSource()==button44) {
String bookNO0=k1.getText().trim(); Connection con;
Statement stmt; ResultSet rs;
try{ Class.forName(\ con=DriverManager.getConnection(\ stmt=con.createStatement();
rs= stmt.executeQuery(\ if(rs.next()) {
bookNO.setText(rs.getString(1)); bookName.setText(rs.getString(2)); Pub.setText(rs.getString(3)); Date.setText(rs.getString(4)); zuo.setText(rs.getString(5));
BookNO='\
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