用java编写学生信息管理系统.doc

用java编写学生信息管理系统import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import java.util.*; class Student implements java.io.Serializable String number,name,specialty,grade,borth,sex; public Student(); public void setNumber(String number) this.number=number; public String getNumber() return number; public void setName(String name) =name; public String getName() return name; public void setSex(String sex) this.sex=sex; public String getSex() return sex; public void setSpecialty(String specialty) this.specialty=specialty; public String getSpecialty() return specialty; public void setGrade(String grade) this.grade=grade; public String getGrade() return grade; public void setBorth(String borth) this.borth=borth; public String getBorth() return borth; public class StudentManager extends JFrame JLabel lb=new JLabel(录入请先输入记录，查询、删除请先输入学号，修改是对查询 + 内容改后的保存！); static JTextField Jnumber,Jname,Jspecialty,Jgrade,Jborth; static JRadioButton boy,girl; static ButtonGroup group=null; static JButton Login,select,delete,update,show; static JPanel p1,p2,p3,p4,p5,p6,pv,ph; static Student student=null; static Hashtable Shashtable=null; static File file=null; static FileInputStream inOne=null; static ObjectInputStream inTwo=null; static FileOutputStream outOne=null; static ObjectOutputStream outTwo=null; public StudentManager() super(学生基本信息管理系统); Jnumber=new JTextField(10); Jname =new JTextField(10); Jspecialty=new JTextField(10); Jgrade=new JTextField(10); Jborth=new JTextField(10); group=new ButtonGroup(); boy=new JRadioButton(男,true); girl=new JRadioButton(女,false); group.add(boy); group.add(girl); Login=new JButton(录入); select=new JButton(查询); delete=new JButton(删除); update=new JButton(修改); show=new JButton(显示); Login.addActionListener(new InputAct(); select.addActionListener(new InquestAct(); update.addActionListener(new ModifyAct(); delete.addActionListener(new DeleteAct(); show.addActionListener(new ShowAct(); update.setEnabled(false); p1=new JPanel(); p1.add(new JLabel(学号:,JLabel.CENTER); p1.add(Jnumber); p2=new JPanel(); p2.add(new JLabel(姓名:,JLabel.CENTER); p2.add(Jname); p3=new JPanel(); p3.add(new JLabel(性别:,JLabel.CENTER); p3.add(boy); p3.add(girl); p4=new JPanel(); p4.add(new JLabel(专业:,JLabel.CENTER); p4.add(Jspecialty); p5=new JPanel(); p5.add(new JLabel(年级:,JLabel.CENTER); p5.add(Jgrade); p6=new JPanel(); p6.add(new JLabel(出生:,JLabel.CENTER); p6.add(Jborth); pv=new JPanel(); pv.setLayout(new GridLayout(6,1); pv.add(p1); pv.add(p2); pv.add(p3); pv.add(p4); pv.add(p5); pv.add(p6); ph=new JPanel(); ph.add(Login); ph.add(select); ph.add(update); ph.add(delete); ph.add(show); file=new File(学生信息.txt); Shashtable=new Hashtable(); if(!file.exists() try FileOutputStream out=new FileOutputStream(file); ObjectOutputStream objectOut=new ObjectOutputStream(out); objectOut.writeObject(Shashtable); objectOut.close(); out.close(); catch(IOException e) Container con=getContentPane(); con.setLayout(new BorderLayout(); con.add(lb, BorderLayout.NORTH); con.add(pv, BorderLayout.CENTER); con.add(ph, BorderLayout.SOUTH); setDefaultCloseOperation(EXIT_ON_CLOSE); setBounds(100,100,600,300); setVisible(true); public static void main(String args) new StudentManager(); class InputAct implements ActionListener public void actionPerformed(ActionEvent e) update.setEnabled(false); String number=; number=Jnumber.getText(); if(number.length()0) try inOne=new FileInputStream(file); inTwo=new ObjectInputStream(inOne); Shashtable=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); catch(Exception ee)System.out.println(创建散列表出现问题！); if(Shashtable.containsKey(number) String warning=该生信息已存在，请到修改页面修改！; JOptionPane.showMessageDialog(null,warning,警告, JOptionPane.WARNING_MESSAGE); /end if1 else String m=该生信息将被录入！; int ok=JOptionPane.showConfirmDialog(null,m,确认, JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE); if(ok=JOptionPane.YES_OPTION) String name=Jname.getText(); String specialty=Jspecialty.getText(); String grade=Jgrade.getText(); String borth=Jborth.getText(); String sex=null; if(boy.isSelected()sex=boy.getText(); elsesex=girl.getText(); student=new Student(); student.setNumber(number); student.setName(name); student.setSpecialty(specialty); student.setGrade(grade); student.setBorth(borth); student.setSex(sex); try outOne=new FileOutputStream(file); outTwo=new ObjectOutputStream(outOne); Shashtable.put(number,student); outTwo.writeObject(Shashtable); outTwo.close(); outOne.close(); catch(Exception ee)System.out.println(输出散列表出现问题！); Jnumber.setText(null); Jname.setText(null); Jspecialty.setText(null); Jgrade.setText(null); Jborth.setText(null); /end else1 /end if0 else String warning=必须输入学号！; JOptionPane.showMessageDialog(null,warning, 警告,JOptionPane.WARNING_MESSAGE); /end else0 /end actionPerformed /end class class InquestAct implements ActionListener public void actionPerformed(ActionEvent e) String number=; number=Jnumber.getText(); if(number.length()0) try inOne=new FileInputStream(file); inTwo=new ObjectInputStream(inOne); Shashtable=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); catch(Exception ee)System.out.println(散列表有问题！); if(Shashtable.containsKey(number) update.setEnabled(true); Student stu=(Student)Shashtable.get(number); Jname.setText(stu.getName(); Jspecialty.setText(stu.getSpecialty(); Jgrade.setText(stu.getGrade(); Jborth.setText(stu.getBorth(); if(stu.getSex().equals(男)boy.setSelected(true); elsegirl.setSelected(true); else update.setEnabled(false); String warning=该学号不存在！; JOptionPane.showMessageDialog(null,warning, 警告,JOptionPane.WARNING_MESSAGE); else update.setEnabled(false); String warning=必须输入学号！; JOptionPane.showMessageDialog(null,warning, 警告,JOptionPane.WARNING_MESSAGE); class ModifyAct implements ActionListener public void actionPerformed(ActionEvent e) String number=Jnumber.getText(); String name=Jname.getText(); String specialty=Jspecialty.getText(); String grade=Jgrade.getText(); String borth=Jborth.getText(); String sex=null; if(boy.isSelected()sex=boy.getText(); elsesex=girl.getText(); Student 学生=new Student(); 学生.setNumber(number); 学生.setName(name); 学生.setSpecialty(specialty); 学生.setGrade(grade); 学生.setBorth(borth); 学生.setSex(sex); try outOne=new FileOutputStream(file); outTwo=new ObjectOutputStream(outOne); Shashtable.put(number, 学生); outTwo.writeObject(Shashtable); outTwo.close(); outOne.close(); Jnumber.setText(null); Jname.setText(null); Jspecialty.setText(null); Jgrade.setText(null); Jborth.setText(null); catch(Exception ee) System.out.println(录入修改出现异常!); update.setEnabled(false); class DeleteAct implements ActionListener public void actionPerformed(ActionEvent e) update.setEnabled(false); String number=Jnumber.getText(); if(number.length()0) try inOne=new FileInputStream(file); inTwo=new ObjectInputStream(inOne); Shashtable=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); catch(Exception ee) if(Shashtable.containsKey(number) Student stu=(Student)Shashtable.get(number); Jname.setText(stu.getName(); Jspecialty.setText(stu.getSpecialty(); Jgrade.setText(stu.getGrade(); Jborth.setText(stu.getBorth(); if(stu.getSex().equals(男)boy.setSelected(true); elsegirl.setSelected(true); String m=确定要删除该学生的记录吗？; int ok=JOptionPane.showConfirmDialog(null,m,确认, JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE); if(ok=JOptionPane.YES_OPTION) Shashtable.remove(number); try outOne=new FileOutputStream(file); outTwo=new ObjectOutputStream(outOne); outTwo.writeObject(Shashtable); outTwo.close(); outOne.close(); Jnumber.setText(null); Jname.setText(null); Jspecialty.setText(null); Jgrade.setText(null); Jborth.setText(null); catch(Exception ee)System.out.println(ee); else if(ok=JOptionPane.NO_OPTION) Jnumber.setText(null); Jname.setText(null); Jspecialty.setText(null); Jgrade.setText(null); Jborth.setText(null); else String warning=该学号不存在！; JOptionPane.showMessageDialog(null,warning, 警告,JOptionPane.WARNING_MESSAGE); else String warning=必须输入学号！; JOptionPane.showMessageDialog(null,warning, 警告,JOptionPane.WARNING_MESSAGE); class ShowAct implements ActionListener public void actionPerformed(ActionEvent e) new StudentShow(file); class StudentShow extends JDialog Hashtable 学生散列表= null; JTextArea 显示=null; FileInputStream inOne=null; ObjectInput