软件工程课设——学生信息管理系统
代码长度超过系统设置了。。
帮同学做的课设~
import java.awt.Color;
import java.awt.Graphics; import java.awt.Image; import java.awt.event.*; import javax.swing.*; import java.io.IOException; import java.sql.*; class Add { private JFrame jf=new JFrame("添加"); private JFrame jj=new JFrame("请添加"); private JLabel id=new JLabel("学号"); private JLabel name=new JLabel("姓名"); private JLabel sex=new JLabel("性别:"); private JLabel birth=new JLabel("出生日期"); private JLabel a=new JLabel("年"); private JLabel b=new JLabel("月"); private JLabel c=new JLabel("日"); private JLabel addr=new JLabel("户口所在地"); private JLabel card=new JLabel("身份证号"); private JLabel dept=new JLabel("学院"); private JLabel pro=new JLabel("专业"); private JLabel clas=new JLabel("班级"); private JRadioButton boy=new JRadioButton("男",false); private JRadioButton girl=new JRadioButton("女",false); private ButtonGroup group=new ButtonGroup(); private JTextField tf1=new JTextField(8); private JTextField tf2=new JTextField(8); private JTextField tf41=new JTextField(8); private JComboBox<Integer> jc1=new JComboBox<>(); private JComboBox<Integer> jc2=new JComboBox<>(); private JComboBox<Integer> jc3=new JComboBox<>(); private JTextField tf5=new JTextField(8); private JTextField tf6=new JTextField(8); private JTextField tf7=new JTextField(8); private JTextField tf8=new JTextField(8); private JTextField tf9=new JTextField(8); private JButton ok=new JButton("提交"); private JButton clear=new JButton("重置"); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); private Box x4=Box.createHorizontalBox(); private Box x5=Box.createHorizontalBox(); private Box x6=Box.createHorizontalBox(); private Box x7=Box.createHorizontalBox(); private Box x8=Box.createHorizontalBox(); private Box x9=Box.createHorizontalBox(); private Box x10=Box.createHorizontalBox(); private JScrollPane jsp; private ResultSet rs; private Connection conn; private Statement stmt; void init() { for(int i=1949;i<=2020;i++) { jc3.addItem(i); } for(int i=1;i<=12;i++) { jc1.addItem(i); } for(int i=1;i<=31;i++) { jc2.addItem(i); } id.setForeground(Color.white); name.setForeground(Color.white); sex.setForeground(Color.white); addr.setForeground(Color.white); card.setForeground(Color.white); dept.setForeground(Color.white); pro.setForeground(Color.white); clas.setForeground(Color.white); birth.setForeground(Color.white); a.setForeground(Color.white); b.setForeground(Color.white); c.setForeground(Color.white); group.add(boy); group.add(girl); x1.add(id); x1.add(tf1); x1.add(Box.createHorizontalStrut(188)); x2.add(name); x2.add(tf2); x2.add(Box.createHorizontalStrut(188)); x3.add(sex); x3.add(Box.createHorizontalStrut(28)); x3.add(boy); x3.add(girl); x3.add(Box.createHorizontalStrut(286)); x4.add(birth); x4.add(jc3); x4.add(a); x4.add(jc1); x4.add(b); x4.add(jc2); x4.add(c); x4.add(Box.createHorizontalStrut(88)); x5.add(addr); x5.add(tf5); x5.add(Box.createHorizontalStrut(28)); x6.add(card); x6.add(tf6); x6.add(Box.createHorizontalStrut(28)); x7.add(dept); x7.add(tf7); x7.add(Box.createHorizontalStrut(28)); x8.add(pro); x8.add(tf8); x8.add(Box.createHorizontalStrut(28)); x9.add(clas); x9.add(tf9); x9.add(Box.createHorizontalStrut(28)); x10.add(clear); x10.add(ok); y.add(Box.createVerticalStrut(6)); y.add(x1); y.add(Box.createVerticalStrut(12)); y.add(x2); y.add(Box.createVerticalStrut(12)); y.add(x3); y.add(Box.createVerticalStrut(12)); y.add(x4); y.add(Box.createVerticalStrut(12)); y.add(x5); y.add(Box.createVerticalStrut(12)); y.add(x6); y.add(Box.createVerticalStrut(12)); y.add(x7); y.add(Box.createVerticalStrut(12)); y.add(x8); y.add(Box.createVerticalStrut(12)); y.add(x9); y.add(Box.createVerticalStrut(6)); y.add(x10); jf.add(y); jf.pack(); jf.setBounds(616,266,340,399); jf.setVisible(true); clear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tf1.setText(null); tf2.setText(null); tf41.setText(null); jc1.setSelectedItem(1); jc2.setSelectedItem(1); tf5.setText(null); tf6.setText(null); tf7.setText(null); tf8.setText(null); tf9.setText(null); } }); ok.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query1=tf1.getText(); String query2=tf2.getText(); String query3=boy.isSelected()?"男":"女"; String query4=jc3.getSelectedItem()+"-"+jc1.getSelectedItem()+"-"+jc2.getSelectedItem(); String query5=tf5.getText(); String query6=tf6.getText(); String query7=tf7.getText(); String query8=tf8.getText(); String query9=tf9.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="insert into info values"+ "(null,'"+query1+"','"+query2+"','"+query3+"','"+query4+"','"+query5+"',"+ "'"+query6+"','"+query7+"','"+query8+"','"+query9+"')"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); // stmt.executeUpdate(query); String query0="select * from info where 学号='"+query1+"'"; rs=stmt.executeQuery(query0); if(rs.next()) JOptionPane.showMessageDialog(jj, "添加失败！"); else { JOptionPane.showMessageDialog(jf, "添加成功"); jf.setVisible(false); } stmt.executeUpdate(query); } catch (SQLException e1) { JOptionPane.showMessageDialog(jj, "资料不能为空！"); e1.printStackTrace(); } } }); } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\pic.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(340, 409); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } } import java.awt.Color; import java.awt.Graphics; import java.awt.Image; import java.awt.TextField; import java.awt.event.*; import javax.swing.*; import java.io.IOException; import java.sql.*; class Delete { private JFrame jf=new JFrame("删除"); private JFrame jj=new JFrame("请删除"); private JLabel id=new JLabel("学号"); private JLabel name=new JLabel("姓名"); private JButton ok1=new JButton("确定"); private JButton ok2=new JButton("确定"); private JButton clear=new JButton("重置"); private TextField tf1=new TextField(10); private TextField tf2=new TextField(10); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); private JScrollPane jsp; private ReadOnlyTableModel romodel; private ResultSet rs; private Connection conn; private Statement stmt; void init() { id.setForeground(Color.WHITE); name.setForeground(Color.WHITE); x1.add(id); x1.add(tf1); x1.add(Box.createHorizontalStrut(6)); x1.add(ok1); x2.add(name); x2.add(tf2); x2.add(Box.createHorizontalStrut(6)); x2.add(ok2); x3.add(clear); y.add(Box.createVerticalStrut(36)); y.add(x1); y.add(Box.createVerticalStrut(16)); y.add(x2); y.add(Box.createVerticalStrut(16)); y.add(x3); y.add(Box.createVerticalStrut(16)); jf.add(y); jf.pack(); jf.setBounds(616, 288, 240, 200); jf.setVisible(true); clear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tf1.setText(null); tf2.setText(null); } }); ok1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query1=tf1.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学号 ='"+query1+"'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 580); jj.setVisible(true); jf.setVisible(false); int as=JOptionPane.showConfirmDialog(jj, "确定删除？", "删除", 0); if(as==0) { jj.setVisible(false); try { conn=JDBC.getConnection(); } catch (ClassNotFoundException | SQLException | IOException e1) { e1.printStackTrace(); } String query3=tf1.getText(); String query4="delete from info where 学号='"+query3+"'"; try { stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); stmt.executeUpdate(query4); } catch (SQLException e1) { e1.printStackTrace(); } JOptionPane.showMessageDialog(jj,"删除成功"); } } } catch (SQLException e1) { e1.printStackTrace(); } } }); ok2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query2=tf2.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 姓名='"+query2+"'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); /* TableColumn num = table.getColumn(columnTitle[0]); num.setMaxWidth(30); TableColumn id = table.getColumn(columnTitle[1]); id. setMaxWidth(188); TableColumn name= table.getColumn(columnTitle[2]); name.setMaxWidth(66); TableColumn sex = table.getColumn(columnTitle[3]); sex.setMaxWidth(50); TableColumn bith= table.getColumn(columnTitle[4]); bith.setMaxWidth(80); TableColumn addr= table.getColumn(columnTitle[5]); addr.setPreferredWidth(120); TableColumn dept= table.getColumn(columnTitle[7]); dept.setPreferredWidth(48); TableColumn clas= table.getColumn(columnTitle[9]); clas.setMaxWidth(60);*/ jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 168); jj.setVisible(true); jf.setVisible(false); } } catch (SQLException e1) { e1.printStackTrace(); } int as=JOptionPane.showConfirmDialog(jf, "确认删除？"); if(as==0) { jj.setVisible(false); try { conn=JDBC.getConnection(); } catch (ClassNotFoundException | SQLException | IOException e1) { e1.printStackTrace(); } String query3=tf2.getText(); String query="delete from info where 姓名='"+query3+"'"; try { stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); stmt.executeUpdate(query); } catch (SQLException e1) { e1.printStackTrace(); } JOptionPane.showMessageDialog(jj,"删除成功"); } } }); } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\frame.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(240, 240); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } } import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.IOException; import java.sql.*; class Update { private JFrame jf=new JFrame("修改"); private JFrame jj=new JFrame("请修改"); private JLabel id=new JLabel("学号"); private JLabel name=new JLabel("姓名"); private JTextField tf1=new JTextField(18); private JTextField tf2=new JTextField(18); private JButton ok1=new JButton("确定"); private JButton ok2=new JButton("确定"); private JButton clear=new JButton("重置"); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); private JScrollPane jsp; private ResultSetTableModel model; private ResultSet rs; private Connection conn; private Statement stmt; void init() { id.setForeground(Color.WHITE); name.setForeground(Color.WHITE); x1.add(id); x1.add(tf1); x1.add(Box.createHorizontalStrut(6)); x1.add(ok1); x2.add(name); x2.add(tf2); x2.add(Box.createHorizontalStrut(6)); x2.add(ok2); x3.add(clear); y.add(Box.createVerticalStrut(36)); y.add(x1); y.add(Box.createVerticalStrut(16)); y.add(x2); y.add(Box.createVerticalStrut(16)); y.add(x3); y.add(Box.createVerticalStrut(16)); jf.add(y); jf.pack(); jf.setBounds(616, 288, 240, 200); jf.setVisible(true); clear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tf1.setText(null); tf2.setText(null); } }); ok1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query1=tf1.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学号 like '"+query1+"%'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { model = new ResultSetTableModel(rs); SuperTable table = new SuperTable(model); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table, columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 580); jj.setVisible(true); } } catch (SQLException e1) { e1.printStackTrace(); } } }); ok2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query2=tf2.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 姓名='"+query2+"'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { model = new ResultSetTableModel(rs); SuperTable table = new SuperTable(model); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table, columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 168); jj.setVisible(true); } } catch (SQLException e1) { e1.printStackTrace(); } } }); } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\frame.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(240, 240); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } } import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.IOException; import java.sql.*; class Query { private JFrame jf=new JFrame("查询"); private JFrame jj=new JFrame("查询结果"); private JLabel id=new JLabel("学号"); private JLabel name=new JLabel("姓名"); private JLabel addr=new JLabel("户籍"); private JButton ok1=new JButton("确定"); private JButton ok2=new JButton("确定"); private JButton ok3=new JButton("确定"); private JButton clear=new JButton("重置"); private TextField tf1=new TextField(10); private TextField tf2=new TextField(10); private TextField tf3=new TextField(10); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); private Box x4=Box.createHorizontalBox(); private JScrollPane jsp; private ReadOnlyTableModel romodel; private ResultSet rs; private Connection conn; private Statement stmt; void init() { id. setForeground(Color.WHITE); name.setForeground(Color.WHITE); addr.setForeground(Color.white); x1.add(id); x1.add(tf1); x1.add(Box.createHorizontalStrut(10)); x1.add(ok1); x2.add(name); x2.add(tf2); x2.add(Box.createHorizontalStrut(10)); x2.add(ok2); x3.add(addr); x3.add(tf3); x3.add(Box.createHorizontalStrut(10)); x3.add(ok3); x4.add(clear); y.add(Box.createVerticalStrut(16)); y.add(x1); y.add(Box.createVerticalStrut(16)); y.add(x2); y.add(Box.createVerticalStrut(16)); y.add(x3); y.add(Box.createVerticalStrut(16)); y.add(x4); jf.add(y); jf.pack(); jf.setBounds(616, 288, 240, 216); jf.setVisible(true); clear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tf1.setText(null); tf2.setText(null); tf3.setText(null); } }); ok1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query1=tf1.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学号 like '"+query1+"%'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 580); jj.setVisible(true); } } catch (SQLException e1) { e1.printStackTrace(); } } }); ok2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query2=tf2.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 姓名='"+query2+"'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 168); jj.setVisible(true); } } catch (SQLException e1) { e1.printStackTrace(); } } }); ok3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String query3=tf3.getText(); try { if(jsp!=null) jj.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 户口所在地 like '%"+query3+"%'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); if(!rs.next()) JOptionPane.showMessageDialog(jj, "查无此人！"); else { romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jj.add(jsp); jj.validate(); jj.pack(); jj.setSize(1366, 580); jj.setVisible(true); } } catch (SQLException e1) { e1.printStackTrace(); } } }); } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\frame.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(240, 240); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } } import java.sql.*; import java.io.*; import java.util.*; class JDBC { static Connection getConnection() throws SQLException, IOException , ClassNotFoundException { Properties props = new Properties(); FileInputStream in = new FileInputStream("id.ini"); props.load(in); in.close(); String driver=props.getProperty("driver"); String url = props.getProperty("url"); String user = props.getProperty("user"); String pass = props.getProperty("pass"); // 加载数据库驱动 Class.forName(driver); // 取得数据库连接 return DriverManager.getConnection(url, user, pass); } } import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.sql.*; class Login { private JLabel num=new JLabel("账户"); private JLabel pas=new JLabel("密码"); private JTextField id=new JTextField(16); private JPasswordField password=new JPasswordField(16); private JButton login=new JButton("登陆"); private JButton register=new JButton("注册"); private JFrame jf=new JFrame("登陆"); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); void init() throws ClassNotFoundException { num.setForeground(Color.WHITE); pas.setForeground(Color.WHITE); x1.add(Box.createHorizontalStrut(10)); x1.add(num); x1.add(id); x2.add(Box.createHorizontalStrut(10)); x2.add(pas); x2.add(password); x3.add(Box.createHorizontalStrut(28)); x3.add(login); x3.add(register); y.add(Box.createVerticalStrut(28)); y.add(x1); y.add(Box.createVerticalStrut(16)); y.add(x2); y.add(Box.createVerticalStrut(26)); y.add(x3); y.add(Box.createVerticalStrut(26)); jf.add(y); jf.pack(); jf.setBounds(616, 288, 216, 200); jf.setVisible(true); register.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Register rg=new Register(); try { rg.register(); } catch (Exception e1) { e1.printStackTrace(); } rg.initFrame(); } }); login.addActionListener(new ActionListener() { @SuppressWarnings("deprecation") public void actionPerformed(ActionEvent e) { if(validate(id.getText(),password.getText())) { Subject sb=new Subject(); sb.init(); jf.setVisible(false); } else { JOptionPane.showMessageDialog(jf,"登录失败"); } } }); } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\123.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(240, 240); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } private boolean validate(String a, String b) { try( Connection conn = JDBC.getConnection(); PreparedStatement pstmt = conn.prepareStatement( "select * from account where id=? and pass=?")) { pstmt.setString(1, a); pstmt.setString(2, b); try( ResultSet rs = pstmt.executeQuery()) { //如果查询的ResultSet里有超过一条的记录，则登录成功 if (rs.next()) { return true; } } } catch(Exception e) { e.printStackTrace(); } return false; } public static void main (String[] args) throws Exception { Login lg=new Login(); lg.init(); lg.initFrame(); } } import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.sql.*; class Register { private JLabel num=new JLabel("学号"); private JLabel name1=new JLabel("姓名"); private JLabel pas=new JLabel("密码"); private JLabel pass1=new JLabel("确认密码"); private JButton submite=new JButton("提交"); private JButton clear=new JButton("重置"); private JTextField id=new JTextField(16); private JTextField name=new JTextField(16); private JPasswordField pass2=new JPasswordField(16); private JPasswordField password=new JPasswordField(14); private JFrame jf=new JFrame("注册"); private Box y=Box.createVerticalBox(); private Box x1=Box.createHorizontalBox(); private Box x2=Box.createHorizontalBox(); private Box x3=Box.createHorizontalBox(); private Box x4=Box.createHorizontalBox(); private Box x5=Box.createHorizontalBox(); void register() throws Exception { x1.add(num); x1.add(id); x2.add(name1); x2.add(name); x3.add(pas); x3.add(pass2); x4.add(pass1); x4.add(password); x5.add(submite); x5.add(clear); y.add(Box.createVerticalStrut(16)); y.add(x1); y.add(Box.createVerticalStrut(16)); y.add(x2); y.add(Box.createVerticalStrut(16)); y.add(x3); y.add(Box.createVerticalStrut(16)); y.add(x4); y.add(Box.createVerticalStrut(16)); y.add(x5); y.add(Box.createVerticalStrut(16)); jf.add(y); jf.pack(); jf.setVisible(true); clear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { id.setText(""); name.setText(""); pass2.setText(""); password.setText(""); } }); submite.addActionListener(new ActionListener() { @SuppressWarnings("deprecation") public void actionPerformed(ActionEvent e) { if(exist(id.getText())) JOptionPane.showMessageDialog(jf,"您已注册，请直接登录"); else if(pass2.getText().equals(password.getText())) { try { insertinto(id.getText(),name.getText(),pass2.getText()); JOptionPane.showMessageDialog(jf, "恭喜您！注册成功！"); jf.setVisible(false); } catch (Exception e1) { e1.printStackTrace(); } } else { JOptionPane.showMessageDialog(jf, "两次密码不一致,请重新输入"); pass2.setText(""); password.setText(""); } } }); } private void insertinto(String id,String name,String pass2) throws Exception { try( Connection conn = JDBC.getConnection(); PreparedStatement pstmt = conn.prepareStatement( "insert into account values(?,?,?)")) { pstmt.setString(1, id); pstmt.setString(2, name); pstmt.setString(3, pass2); pstmt.executeUpdate(); } } private boolean exist(String c) { try( Connection conn =JDBC.getConnection(); PreparedStatement pstmt = conn.prepareStatement( "select * from account where id=? ")) { pstmt.setString(1, c); try( ResultSet rs = pstmt.executeQuery()) { if (rs.next()) { return true; } } } catch(Exception e) { e.printStackTrace(); } return false; } void initFrame() { JPanel GImage = new JPanel() { private static final long serialVersionUID = 1L; protected void paintComponent(Graphics g) { ImageIcon icon = new ImageIcon("D:\\frame.jpg"); Image img = icon.getImage(); g.drawImage(img, 0, 0, icon.getIconWidth(), icon.getIconHeight(), icon.getImageObserver()); jf.setSize(240, 240); } }; jf.add(GImage); jf.pack(); jf.setVisible(true); } } import javax.swing.table.*; import java.sql.*; class ReadOnlyTableModel extends AbstractTableModel { private static final long serialVersionUID = 1L; private ResultSet rs; private ResultSetMetaData rsmd; public ReadOnlyTableModel(ResultSet aResultSet) { rs = aResultSet; try { rsmd = rs.getMetaData(); } catch (SQLException e) { e.printStackTrace(); } } // 重写getColumnName方法，用于为该TableModel设置列名 public String getColumnName(int c) { try { return rsmd.getColumnName(c + 1); } catch (SQLException e) { e.printStackTrace(); return ""; } } // 重写getColumnCount方法，用于设置该TableModel的列数 public int getColumnCount() { try { return rsmd.getColumnCount(); } catch (SQLException e) { e.printStackTrace(); return 0; } } // 重写getValueAt方法，用于设置该TableModel指定单元格的值 public Object getValueAt(int r, int c) { try { rs.absolute(r + 1); return rs.getObject(c + 1); } catch(SQLException e) { e.printStackTrace(); return null; } } // 重写getColumnCount方法，用于设置该TableModel的行数 public int getRowCount() { try { rs.last(); return rs.getRow(); } catch(SQLException e) { e.printStackTrace(); return 0; } } } import javax.swing.table.*; import java.sql.*; class ResultSetTableModel extends AbstractTableModel { private static final long serialVersionUID = 1L; private ResultSet rs; private ResultSetMetaData rsmd; public ResultSetTableModel(ResultSet aResultSet) { rs = aResultSet; try { rsmd = rs.getMetaData(); } catch (SQLException e) { e.printStackTrace(); } } // 重写getColumnName方法，用于为该TableModel设置列名 public String getColumnName(int c) { try { return rsmd.getColumnName(c + 1); } catch (SQLException e) { e.printStackTrace(); return ""; } } // 重写getColumnCount方法，用于设置该TableModel的列数 public int getColumnCount() { try { return rsmd.getColumnCount(); } catch (SQLException e) { e.printStackTrace(); return 0; } } // 重写getValueAt方法，用于设置该TableModel指定单元格的值 public Object getValueAt(int r, int c) { try { rs.absolute(r + 1); return rs.getObject(c + 1); } catch(SQLException e) { e.printStackTrace(); return null; } } // 重写getColumnCount方法，用于设置该TableModel的行数 public int getRowCount() { try { rs.last(); return rs.getRow(); } catch(SQLException e) { e.printStackTrace(); return 0; } } // 重写isCellEditable返回true，让每个单元格可编辑 public boolean isCellEditable(int rowIndex, int columnIndex) { return true; } // 重写setValueAt()方法，当用户编辑单元格时，将会触发该方法 public void setValueAt(Object aValue , int row,int column) { try { // 结果集定位到对应的行数 rs.absolute(row + 1); // 修改单元格多对应的值 rs.updateObject(column + 1 , aValue); // 提交修改 rs.updateRow(); // 触发单元格的修改事件 fireTableCellUpdated(row, column); } catch (SQLException evt) { evt.printStackTrace(); } } } import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.TreeSelectionEvent; import javax.swing.event.TreeSelectionListener; import javax.swing.table.TableColumn; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.TreeSelectionModel; import java.io.*; import java.sql.*; public class Subject { private JFrame jf=new JFrame("学生信息管理系统"); private JPanel jp=new JPanel(); private JButton refresh=new JButton("刷新"); private JButton query=new JButton("查询"); private JButton add=new JButton("添加"); private JButton update=new JButton("修改"); private JButton delete=new JButton("删除"); private JTree tree; private DefaultMutableTreeNode root=new DefaultMutableTreeNode("学生信息管理系统"); private DefaultMutableTreeNode info=new DefaultMutableTreeNode("学生户籍资料"); private DefaultMutableTreeNode d01=new DefaultMutableTreeNode("机械工程学院"); private DefaultMutableTreeNode d02=new DefaultMutableTreeNode("汽车与交通学院"); private DefaultMutableTreeNode d03=new DefaultMutableTreeNode("信息科学与工程学院"); private DefaultMutableTreeNode d04=new DefaultMutableTreeNode("经济管理学院"); private DefaultMutableTreeNode d05=new DefaultMutableTreeNode("材料科学与工程学院"); private DefaultMutableTreeNode d06=new DefaultMutableTreeNode("外国语学院"); private DefaultMutableTreeNode d07=new DefaultMutableTreeNode("理学院"); private DefaultMutableTreeNode d08=new DefaultMutableTreeNode("环境与化学工程学院"); private DefaultMutableTreeNode d09=new DefaultMutableTreeNode("艺术设计学院"); private DefaultMutableTreeNode d10=new DefaultMutableTreeNode("装备工程学院"); private DefaultMutableTreeNode d03p01c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p01c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d03p01c3=new DefaultMutableTreeNode("三班"); private DefaultMutableTreeNode d03p01c4=new DefaultMutableTreeNode("四班"); private DefaultMutableTreeNode d03p01c5=new DefaultMutableTreeNode("五班"); private DefaultMutableTreeNode d03p02c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p02c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d03p02c3=new DefaultMutableTreeNode("三班"); private DefaultMutableTreeNode d03p03c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p03c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d03p03c3=new DefaultMutableTreeNode("三班"); private DefaultMutableTreeNode d03p04c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p04c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d03p04c3=new DefaultMutableTreeNode("三班"); private DefaultMutableTreeNode d03p04c4=new DefaultMutableTreeNode("四班"); private DefaultMutableTreeNode d03p04c5=new DefaultMutableTreeNode("五班"); private DefaultMutableTreeNode d03p05c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p05c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d03p05c3=new DefaultMutableTreeNode("三班"); private DefaultMutableTreeNode d03p05c4=new DefaultMutableTreeNode("四班"); private DefaultMutableTreeNode d03p05c5=new DefaultMutableTreeNode("五班"); private DefaultMutableTreeNode d03p06c1=new DefaultMutableTreeNode("一班"); private DefaultMutableTreeNode d03p06c2=new DefaultMutableTreeNode("二班"); private DefaultMutableTreeNode d01p01=new DefaultMutableTreeNode("机械设计制造及其自动化"); private DefaultMutableTreeNode d01p02=new DefaultMutableTreeNode("工业工程"); private DefaultMutableTreeNode d01p03=new DefaultMutableTreeNode("机械电子工程"); private DefaultMutableTreeNode d02p01=new DefaultMutableTreeNode("车辆工程"); private DefaultMutableTreeNode d02p02=new DefaultMutableTreeNode("交通运输"); private DefaultMutableTreeNode d02p03=new DefaultMutableTreeNode("热能与动力工程"); private DefaultMutableTreeNode d03p01=new DefaultMutableTreeNode("自动化"); private DefaultMutableTreeNode d03p02=new DefaultMutableTreeNode("测控技术与仪器"); private DefaultMutableTreeNode d03p03=new DefaultMutableTreeNode("电子科学与技术"); private DefaultMutableTreeNode d03p04=new DefaultMutableTreeNode("通信工程"); private DefaultMutableTreeNode d03p05=new DefaultMutableTreeNode("计算机科学与技术"); private DefaultMutableTreeNode d03p06=new DefaultMutableTreeNode("电子信息工程"); private DefaultMutableTreeNode d04p01=new DefaultMutableTreeNode("工商管理"); private DefaultMutableTreeNode d04p02=new DefaultMutableTreeNode("会计学"); private DefaultMutableTreeNode d05p01=new DefaultMutableTreeNode("冶炼金属"); private DefaultMutableTreeNode d05p02=new DefaultMutableTreeNode("有机化学"); private DefaultMutableTreeNode d06p01=new DefaultMutableTreeNode("英语"); private DefaultMutableTreeNode d07p01=new DefaultMutableTreeNode("物理"); private DefaultMutableTreeNode d08p01=new DefaultMutableTreeNode("园艺"); private DefaultMutableTreeNode d09p01=new DefaultMutableTreeNode("陶瓷艺术"); private DefaultMutableTreeNode d10p01=new DefaultMutableTreeNode("导弹制导"); private DefaultMutableTreeNode grade=new DefaultMutableTreeNode("学生成绩管理"); private DefaultMutableTreeNode addgrade=new DefaultMutableTreeNode("添加"); private DefaultMutableTreeNode updategrade=new DefaultMutableTreeNode("修改"); private DefaultMutableTreeNode querygrade=new DefaultMutableTreeNode("查询"); private DefaultMutableTreeNode erasegrade=new DefaultMutableTreeNode("删除"); private JScrollPane jsp; private ReadOnlyTableModel romodel; private ResultSet rs; private Connection conn; private Statement stmt; private Statement stmt1; void init() { show(); jp.add(refresh); jp.add(query); jp.add(add); jp.add(update); jp.add(delete); info.add(d01); info.add(d02); info.add(d03); info.add(d04); info.add(d05); info.add(d06); info.add(d07); info.add(d08); info.add(d09); info.add(d10); d01.add(d01p01); d01.add(d01p02); d01.add(d01p03); d02.add(d02p01); d02.add(d02p02); d02.add(d02p03); d03.add(d03p01); d03.add(d03p02); d03.add(d03p03); d03.add(d03p04); d03.add(d03p05); d03.add(d03p06); d04.add(d04p01); d04.add(d04p02); d05.add(d05p01); d05.add(d05p02); d06.add(d06p01); d07.add(d07p01); d08.add(d08p01); d09.add(d09p01); d10.add(d10p01); d03p01.add(d03p01c1); d03p01.add(d03p01c2); d03p01.add(d03p01c3); d03p01.add(d03p01c4); d03p01.add(d03p01c5); d03p02.add(d03p02c1); d03p02.add(d03p02c2); d03p02.add(d03p02c3); d03p03.add(d03p03c1); d03p03.add(d03p03c2); d03p03.add(d03p03c3); d03p04.add(d03p04c1); d03p04.add(d03p04c2); d03p04.add(d03p04c3); d03p04.add(d03p04c4); d03p04.add(d03p04c5); d03p05.add(d03p05c1); d03p05.add(d03p05c2); d03p05.add(d03p05c3); d03p05.add(d03p05c4); d03p05.add(d03p05c5); d03p06.add(d03p06c1); d03p06.add(d03p06c2); grade.add(addgrade); grade.add(updategrade); grade.add(querygrade); grade.add(erasegrade); root.add(info); root.add(grade); tree=new JTree(root); jf.add(jp,BorderLayout.SOUTH); jf.add(tree,BorderLayout.WEST); jf.pack(); jf.setSize(1366, 688); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.setVisible(true); refresh.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(jsp!=null) jf.remove(jsp); if(rs!=null) try { rs.close(); } catch (SQLException e1) { e1.printStackTrace(); } String search="select * from info"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (SQLException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } try { stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(search); } catch (SQLException e1) { e1.printStackTrace(); } romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); jf.pack(); jf.setSize(1366,688); jf.setVisible(true); } }); query.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Query qu=new Query(); qu.init(); qu.initFrame(); } }); update.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Update up=new Update(); up.init(); up.initFrame(); } }); add.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Add ad=new Add(); ad.init(); ad.initFrame(); } }); delete.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Delete de=new Delete(); de.init(); de.initFrame(); } }); //设置只能选择一个路径 tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); tree.addTreeSelectionListener(new TreeSelectionListener() { public void valueChanged(TreeSelectionEvent e) { DefaultMutableTreeNode selectedNode=(DefaultMutableTreeNode)tree.getLastSelectedPathComponent(); //信息院 if(selectedNode==d03) try { if(jsp!=null) jf.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学院='信息科学与工程学院'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); } catch (SQLException e1) { e1.printStackTrace(); } //计算机科学与技术 if(selectedNode==d03p05) try { if(jsp!=null) jf.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学院='信息科学与工程学院' and 专业='计算机科学与技术'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query);romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle);jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); } catch (SQLException e1){e1.printStackTrace();} //通信工程 if(selectedNode==d03p04) try { if(jsp!=null) jf.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学院='信息科学与工程学院' and 专业='通信工程'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) {e1.printStackTrace(); } catch (IOException e1) {e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query);romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle);jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); } catch (SQLException e1){e1.printStackTrace();} //二班 if(selectedNode==d03p05c2) try { if(jsp!=null) jf.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学院='信息科学与工程学院'and 专业='计算机科学与技术' and 班级='二班'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) {e1.printStackTrace(); } catch (IOException e1) {e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); romodel = new ReadOnlyTableModel(rs); SuperTable table = new SuperTable(romodel); Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"}; table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); } catch (SQLException e1){e1.printStackTrace();} //三班 if(selectedNode==d03p05c3) try { if(jsp!=null) jf.remove(jsp); if(rs!=null) rs.close(); String query="select * from info where 学院='信息科学与工程学院' and 专业='计算机科学与技术' and 班级='三班'"; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) {e1.printStackTrace(); } catch (IOException e1) {e1.printStackTrace(); } stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt.executeQuery(query); romodel = new ReadOnlyTableModel(rs);
SuperTable table = new SuperTable(romodel);
Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"};
table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); } catch (SQLException e1){e1.printStackTrace();}}});} void show(){try { if(jsp!=null) jf.remove(jsp); String query="select * from info "; try { conn=JDBC.getConnection(); } catch (ClassNotFoundException e1) {e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } stmt1 = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_UPDATABLE); rs=stmt1.executeQuery(query); romodel = new ReadOnlyTableModel(rs);
SuperTable table = new SuperTable(romodel);
Object[] columnTitle={"序号","学号","姓名","性别","出生日期","户口所在地","身份证号","学院","专业","班级"};
table.changeSize(table,columnTitle); jsp = new JScrollPane(table); jf.add(jsp); jf.validate(); jf.pack(); jf.setSize(1366, 688); jf.setVisible(true); } catch (SQLException e1){e1.printStackTrace();}}}import javax.swing.*;import javax.swing.table.TableColumn;class SuperTable extends JTable{private static final long serialVersionUID = 1L;public SuperTable(ReadOnlyTableModel romodel) {super(romodel);}public SuperTable(ResultSetTableModel model) {super(model);}void changeSize(SuperTable st,Object [] columnTitle){ TableColumn num = st.getColumn(columnTitle[0]); num.setMaxWidth(30); TableColumn id = st.getColumn(columnTitle[1]); id. setMaxWidth(188); TableColumn name= st.getColumn(columnTitle[2]); name.setMaxWidth(66); TableColumn sex = st.getColumn(columnTitle[3]); sex.setMaxWidth(50); TableColumn bith= st.getColumn(columnTitle[4]); bith.setMaxWidth(80); TableColumn addr= st.getColumn(columnTitle[5]); addr.setPreferredWidth(120); TableColumn dept= st.getColumn(columnTitle[7]); dept.setPreferredWidth(48); TableColumn clas= st.getColumn(columnTitle[9]); clas.setMaxWidth(60); }}