Java学生管理系统GUI+IO流

package com.clic.Expetion.Work.practiCaltraining; import com.clic.Expetion.Work.practiCaltraining.Account; import com.clic.Expetion.Work.practiCaltraining.StudentInterface; import com.clic.Expetion.Work.practiCaltraining.TeacherInterface; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.*; import javax.swing.*; class myFrame { JFrame jFrame=new JFrame("登录"); JLabel title=new JLabel("欢迎学生成绩管理系统"); JLabel account=new JLabel("用户名:"); JTextField number=new JTextField(15); JLabel passWord=new JLabel("密 码:"); JPasswordField code=new JPasswordField(15); JButton register =new JButton("登录"); JButton cancel=new JButton("取消"); JRadioButton student=new JRadioButton("学生",true); JRadioButton teacher=new JRadioButton("教师"); ButtonGroup buttonGroup=new ButtonGroup();//组 JDialog jDialog; void init(){//组装 int i=0; title.setFont(new Font("黑体",Font.BOLD,35));//设置字体以及大小 account.setFont(new Font("楷体",Font.PLAIN,20)); passWord.setFont(new Font("楷体",Font.PLAIN,20)); account.setForeground(Color.RED);//设置标签字体颜色 passWord.setForeground(Color.RED); JPanel jPanel1=new JPanel(); buttonGroup.add(student);//将选项添加到ButtonGroup，只能单选 buttonGroup.add(teacher); JPanel jPanel2=new JPanel();//创建5个JPanel对象 JPanel jPanel3=new JPanel(); JPanel jPanel4=new JPanel(); JPanel jPanel5=new JPanel(); jPanel1.add(title);//向JPanel对象中添加组件 jPanel2.add(account); jPanel2.add(number); jPanel3.add(passWord); jPanel3.add(code); jPanel4.add(student); jPanel4.add(teacher); //创建账号密码 Account[] accounts=new Account[6]; accounts[0] =new Account("111","111","张三","学生",80); accounts[1] =new Account("222","222","李四","学生",78); accounts[2] =new Account("333","333","王五","学生",90); accounts[3] =new Account("444","444","王二","学生",100); accounts[4] =new Account("555","555","赵六","学生",60); accounts[5] =new Account("666","666","小黑","教师"); File file=new File("D://桌面//data"); ObjectInputStream ois=null; ObjectOutputStream oos=null; if (file.exists()){ try { ois=new ObjectInputStream(new FileInputStream(file)); } catch (IOException e) { e.printStackTrace(); } try { while((accounts[i]= (Account) ois.readObject())!=null){ i++; if(i==6){ break; } } ois.close(); } catch (EOFException e) { // e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }else { try { oos=new ObjectOutputStream(new FileOutputStream(file)); oos.writeObject(accounts[0]); oos.writeObject(accounts[1]); oos.writeObject(accounts[2]); oos.writeObject(accounts[3]); oos.writeObject(accounts[4]); oos.writeObject(accounts[5]); oos.writeObject(null); oos.flush(); oos.close(); } catch (IOException e) { e.printStackTrace(); } } //为取消添加监听事件 cancel.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { number.setText(""); code.setText(""); } }); //为登录添加监听事件 register.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) {//点击登陆按钮 int i=0; if (number.getText().equals("")){//判断是否输入账号 JOptionPane.showMessageDialog(jFrame,"请输入账号","错误",JOptionPane.ERROR_MESSAGE); }else if (code.getText().equals("")){//判断是否输入密码 JOptionPane.showMessageDialog(jFrame,"请输入密码","错误",JOptionPane.ERROR_MESSAGE); }else if (!(student.isSelected()||teacher.isSelected())){ JOptionPane.showMessageDialog(jFrame,"请选择您的身份","失败",JOptionPane.QUESTION_MESSAGE); } for ( i = 0; i <6 ; i++) { if (number.getText().equals(accounts[i].getAccount())&&code.getText().equals(accounts[i].getPassWord())&&accounts[i].getIdentity().equals(student.isSelected()?"学生":"教师")){ JOptionPane.showMessageDialog(jFrame,"登陆成功","成功",JOptionPane.PLAIN_MESSAGE); if (teacher.isSelected()){ new TeacherInterface().init(accounts,accounts[i]); jFrame.dispose(); }else { new StudentInterface().init(accounts,accounts[i]); jFrame.dispose(); } break; } } while (i==6){ JOptionPane.showMessageDialog(jFrame,"账号或密码错误","失败",JOptionPane.ERROR_MESSAGE); break; } } }); jPanel5.add(register); jPanel5.add(cancel); jFrame.setLayout(new GridLayout(5,1));//设置网格布局管理 jFrame.add(jPanel1); jFrame.add(jPanel2); jFrame.add(jPanel3); jFrame.add(jPanel4); jFrame.add(jPanel5); jFrame.setSize(500,350);//设置窗口大小 jFrame.setLocationRelativeTo(null);//使窗体居中显示 jFrame.setResizable(false);//设置窗体大小不可变 jFrame.setVisible(true); } } class mianText { public static void main(String[] args) { new myFrame().init(); } }