java简单学生信息系统源码

简单学生信息系统的设计与实现

代码如下：（添加部分用灰色底纹标出） /*--------- Delete ------------*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import java.sql.*; import java.util.*;

public class Delete extends JPanel implements ActionListener{

HashMap 基本信息表=null; JTextField 学号,姓名,专业,年级,出生; JRadioButton 男,女; JButton 删除;

ButtonGroup group=null; FileInputStream inOne=null; ObjectInputStream inTwo=null; FileOutputStream outOne=null; ObjectOutputStream outTwo=null;

File systemFile=null; public Delete(File file){ systemFile=file;

学号=new JTextField(10); 删除=new JButton(\删除\ 学号.addActionListener(this); 删除.addActionListener(this); 姓名=new JTextField(10); 姓名.setEditable(false);

专业=new JTextField(10); 专业.setEditable(false); 年级=new JTextField(10); 年级.setEditable(false); 出生=new JTextField(10); 出生.setEditable(false);

男=new JRadioButton(\男\ 女=new JRadioButton(\女\ group=new ButtonGroup(); group.add(男); group.add(女);

Box box1=Box.createHorizontalBox(); box1.add(new JLabel(\输入要删除的学号:\ box1.add(学号); box1.add(删除);

Box box2=Box.createHorizontalBox(); box2.add(new JLabel(\姓名:\ box2.add(姓名);

Box box3=Box.createHorizontalBox(); box3.add(new JLabel(\性别:\ box3.add(男); box3.add(女);

Box box4=Box.createHorizontalBox(); box4.add(new JLabel(\专业:\ box4.add(专业);

Box box5=Box.createHorizontalBox(); box5.add(new JLabel(\年级:\ box5.add(年级);

Box box6=Box.createHorizontalBox(); box6.add(new JLabel(\出生:\

box6.add(出生);

Box boxH=Box.createVerticalBox(); boxH.add(box1); boxH.add(box2); boxH.add(box3); boxH.add(box4); boxH.add(box5); boxH.add(box6);

boxH.add(Box.createVerticalGlue()); JPanel pCenter=new JPanel();

pCenter.add(boxH);//真正的添加得在JPanel中才会显示 setLayout(new BorderLayout()); add(pCenter,BorderLayout.CENTER); validate(); }

public void actionPerformed(ActionEvent e){ if(e.getSource()==删除||e.getSource()==学号){ String number=\ number=学号.getText(); Connection con; Statement sql; ResultSet rs; String mes;

if(number.length()>0){ try {

Class.forName(\ }

catch(ClassNotFoundException e1) {

System.out.println(e1);

} try {

con=DriverManager.getConnection(\ sql=con.createStatement();

rs=sql.executeQuery(\ while(rs.next())

{ String num=rs.getString(\ String name=rs.getString(\ String zhuanye=rs.getString(\ String sex=rs.getString(\ String borth=rs.getString(\ String nianji=rs.getString(\ 姓名.setText(name); 专业.setText(zhuanye); 年级.setText(nianji); 出生.setText(borth); if(sex.equals(\男\ 男.setSelected(true); else

女.setSelected(true);

String m=\确定要删除该学号及全部信息吗?\

int ok=JOptionPane.showConfirmDialog(this,m,\确认\

JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE); if(ok==JOptionPane.YES_OPTION) {

rs=sql.executeQuery(\ con.close();

} }

}

catch(SQLException e2){ System.out.println(e2); } } } } }

/*-----------InputStudent---------------------*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*;

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.*;

import javax.swing.filechooser.*;

public class InputStudent extends JPanel implements ActionListener{ Student 学生=null; StudentPicture pic;

HashMap 基本信息表=null; JTextField 学号,姓名,年级,出生; JButton 选择照片;

JComboBox 专业; JRadioButton 男,女; ButtonGroup group=null; JButton 录入,重置;

FileInputStream inOne=null; ObjectInputStream inTwo=null; FileOutputStream outOne=null; ObjectOutputStream outTwo=null; File systemFile,imagePic; public InputStudent(File file){ systemFile=file;

pic=new StudentPicture(); 学号=new JTextField(5); 姓名=new JTextField(5); 专业=new JComboBox();

try{

FileReader inOne=new FileReader(\专业.txt\ BufferedReader inTwo= new BufferedReader(inOne); String s=null; int i=0;

while((s=inTwo.readLine())!=null) 专业.addItem(s); inOne.close(); inTwo.close(); }

catch(IOException exp){ 专业.addItem(\数学\

专业.addItem(\计算机科学与技术\ }

年级=new JTextField(5); 出生=new JTextField(5); 选择照片=new JButton(\选择\ group=new ButtonGroup(); 男=new JRadioButton(\男\ 女=new JRadioButton(\女\ group.add(男); group.add(女);

录入=new JButton(\录入\ 重置=new JButton(\重置\ 录入.addActionListener(this); 选择照片.addActionListener(this); 重置.addActionListener(this);

Box box1=Box.createHorizontalBox(); box1.add(new JLabel(\学号:\ box1.add(学号);

Box box2=Box.createHorizontalBox(); box2.add(new JLabel(\姓名:\ box2.add(姓名);

Box box3=Box.createHorizontalBox(); box3.add(new JLabel(\性别:\ box3.add(男); box3.add(女);

Box box4=Box.createHorizontalBox(); box4.add(new JLabel(\专业:\ box4.add(专业);

Box box5=Box.createHorizontalBox(); box5.add(new JLabel(\年级:\ box5.add(年级);

Box box6=Box.createHorizontalBox();

box6.add(new JLabel(\出生:\ box6.add(出生);

Box boxH=Box.createVerticalBox(); boxH.add(box1); boxH.add(box2); boxH.add(box3); boxH.add(box4); boxH.add(box5); boxH.add(box6);

boxH.add(Box.createVerticalGlue()); JPanel picPanel=new JPanel();

picPanel.setBackground(Color.green); picPanel.add(new JLabel(\选择照片:\ picPanel.add(选择照片);

JPanel putButton=new JPanel(); putButton.add(录入);

putButton.add(重置); JPanel messPanel=new JPanel(); messPanel.add(boxH);

messPanel.setBackground(Color.cyan); putButton.setBackground(Color.red); setLayout(new BorderLayout()); JSplitPane splitV=

new JSplitPane(JSplitPane.VERTICAL_SPLIT,picPanel,pic);

JSplitPane splitH=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,messPanel,splitV); add(splitH,BorderLayout.CENTER); add(putButton,BorderLayout.SOUTH); validate(); }

public void actionPerformed(ActionEvent e) {

if(e.getSource()==录入) {

String number=\学号已存在！\ number=学号.getText(); Connection con; Statement sql; ResultSet rs_in,rs; String mes;

if(number.length()>0) { try {

Class.forName(\

}

catch(ClassNotFoundException e1) {

System.out.println(e1); } try

{ con=DriverManager.getConnection(\ sql=con.createStatement();

rs=sql.executeQuery(\ if(rs.next() )

{ String warning=\该学号已存在，请重输！\

JOptionPane.showMessageDialog(this,warning,\警告\ } else {

int num=Integer.parseInt(学号.getText()); String name=String.valueOf(姓名.getText()); String discipling=(String)专业.getSelectedItem(); String grade=年级.getText(); String borth=出生.getText(); String sex=null; if(男.isSelected()) sex=男.getText(); else

sex=女.getText();

String m=\基本信息将被录入!\

int ok=JOptionPane.showConfirmDialog(this,m,\确认\

JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE); rs_in=sql.executeQuery(\ values('\ }

catch(SQLException e2) {

mes=e2.toString(); } } else{

String warning=\必须要输入学号!\

JOptionPane.showMessageDialog(this,warning,\警告\ }

}

}

else if(e.getSource()==重置){ clearMess(); } }

public void clearMess(){ 学号.setText(null); 姓名.setText(null); 年级.setText(null); 出生.setText(null); 选择照片.setText(\选择\ imagePic=null; pic.setImage(imagePic); pic.repaint(); } }

/*---------------------- Inquest ---*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*;

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.*;

public class Inquest extends JDialog implements ActionListener{ StudentPicture pic; PrintJob print; Graphics g=null;

HashMap 基本信息表; JTextField 学号,姓名,专业,年级,出生; JRadioButton 男,女;

JButton 查询,打印文本及照片,打印文本,打印照片; ButtonGroup group=null; FileInputStream inOne=null; ObjectInputStream inTwo=null; File systemFile=null; JPanel messPanel; Student stu;

public Inquest(File file){ setTitle(\查询对话框\ setModal(false);

systemFile=file;

pic=new StudentPicture(); 学号=new JTextField(6); 查询=new JButton(\查询\ 学号.addActionListener(this); 查询.addActionListener(this);

打印文本及照片=new JButton(\打印文本及照片\ 打印文本=new JButton(\打印文本\ 打印照片=new JButton(\打印照片\ 打印文本及照片.addActionListener(this); 打印文本.addActionListener(this); 打印照片.addActionListener(this); 打印文本及照片.setEnabled(false); 打印文本.setEnabled(false); 打印照片.setEnabled(false); 姓名=new JTextField(5); 姓名.setEditable(false); 专业=new JTextField(5); 专业.setEditable(false); 年级=new JTextField(5); 年级.setEditable(false); 出生=new JTextField(5); 出生.setEditable(false);

男=new JRadioButton(\男\ 女=new JRadioButton(\女\ group=new ButtonGroup(); group.add(男); group.add(女);

Box box1=Box.createHorizontalBox();

box1.add(new JLabel(\学号:\ box1.add(学号); box1.add(查询);

Box box2=Box.createHorizontalBox(); box2.add(new JLabel(\姓名:\ box2.add(姓名);

Box box3=Box.createHorizontalBox();

box3.add(new JLabel(\性别:\ box3.add(男); box3.add(女);

Box box4=Box.createHorizontalBox();

box4.add(new JLabel(\专业:\ box4.add(专业);

Box box5=Box.createHorizontalBox();

box5.add(new JLabel(\年级:\

box5.add(年级);

Box box6=Box.createHorizontalBox(); box6.add(new JLabel(\出生:\ box6.add(出生);

Box boxH=Box.createVerticalBox(); boxH.add(box1); boxH.add(box2); boxH.add(box3); boxH.add(box4); boxH.add(box5); boxH.add(box6);

boxH.add(Box.createVerticalGlue()); messPanel=new JPanel(); messPanel.add(boxH);

JSplitPane splitH=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,messPanel,pic); add(splitH,BorderLayout.CENTER); JPanel pSouth=new JPanel(); pSouth.add(打印文本及照片); pSouth.add(打印文本); pSouth.add(打印照片);

add(pSouth,BorderLayout.SOUTH); validate(); setVisible(false); setSize(360,230);

addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){ setVisible(false); }}); }

public void actionPerformed(ActionEvent e) {

if(e.getSource()==查询||e.getSource()==学号){ String number=\ number=学号.getText(); Connection con; Statement sql; ResultSet rs; String mes;

if(number.length()>0) { try {

Class.forName(\ }

catch(ClassNotFoundException e1)

{

System.out.println(e1); } try {

con=DriverManager.getConnection(\ sql=con.createStatement();

rs=sql.executeQuery(\ while(rs.next())

{ String num=rs.getString(\ String name=rs.getString(\ String zhuanye=rs.getString(\ String sex=rs.getString(\ String borth=rs.getString(\ String nianji=rs.getString(\ 姓名.setText(name); 专业.setText(zhuanye); 年级.setText(nianji); 出生.setText(borth); if(sex.equals(\男\ 男.setSelected(true); else

女.setSelected(true); } }

catch(SQLException e2) {

System.out.println(e2); } } else {

打印文本及照片.setEnabled(false); 打印文本.setEnabled(false); 打印照片.setEnabled(false); String warning=\必须要输入学号!\

JOptionPane.showMessageDialog(this,warning,\警告\

JOptionPane.WARNING_MESSAGE); } } }

public void clearMess(){

学号.setText(null); 姓名.setText(null); 年级.setText(null); 出生.setText(null); 专业.setText(null); pic.setImage(null); pic.repaint(); } }

/*---------------------- ManagerWindow -------*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*;

import java.util.HashMap;

public class ManagerWindow extends JFrame implements ActionListener{ InputStudent 基本信息录入; ModifySituation 基本信息修改; Inquest 基本信息查询与打印; Delete 基本信息删除; JMenuBar bar; JMenu fileMenu;

JMenuItem 录入,修改,查询与打印,删除,欢迎界面;

HashMap 基本信息=null; File file=null; CardLayout card=null; JLabel label=null; JPanel pCenter;

public ManagerWindow(){

录入=new JMenuItem(\录入学生基本信息\ 修改=new JMenuItem(\修改学生基本信息\

查询与打印=new JMenuItem(\查询与打印学生基本信息\

删除=new JMenuItem(\删除学生基本信息\ 欢迎界面=new JMenuItem(\欢迎界面\ bar=new JMenuBar();

fileMenu=new JMenu(\菜单选项\ fileMenu.add(录入); fileMenu.add(修改); fileMenu.add(查询与打印); fileMenu.add(删除); fileMenu.add(欢迎界面); bar.add(fileMenu); setJMenuBar(bar);

label=new JLabel(\学籍管理系统\ label.setIcon(new ImageIcon(\ label.setFont(new Font(\隶书\

label.setHorizontalTextPosition(SwingConstants.CENTER); label.setForeground(Color.red);

基本信息=new HashMap(); 录入.addActionListener(this); 修改.addActionListener(this); 查询与打印.addActionListener(this); 删除.addActionListener(this); 欢迎界面.addActionListener(this); card=new CardLayout(); pCenter=new JPanel(); pCenter.setLayout(card); file=new File(\基本信息.txt\ if(!file.exists()){ try{

FileOutputStream out=new FileOutputStream(file);

ObjectOutputStream objectOut=new ObjectOutputStream(out);

objectOut.writeObject(基本信息); objectOut.close(); out.close(); }

catch(IOException e){} }

基本信息录入=new InputStudent(file); 基本信息修改=new ModifySituation(file); 基本信息查询与打印=new Inquest(file); 基本信息删除=new Delete(file); pCenter.add(\欢迎界面\ pCenter.add(\录入界面\基本信息录入); pCenter.add(\修改界面\基本信息修改); pCenter.add(\删除界面\基本信息删除); add(pCenter,BorderLayout.CENTER); validate(); setVisible(true);

setBounds(100,50,550,400);

setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

int n=JOptionPane.showConfirmDialog(null,\确认退出吗?\确认对话框\ JOptionPane.YES_NO_OPTION ); if(n==JOptionPane.YES_OPTION) System.exit(0); }}); validate(); }

public void actionPerformed(ActionEvent e){ if(e.getSource()==录入){

基本信息录入.clearMess(); card.show(pCenter,\录入界面\ }

else if(e.getSource()==修改){ 基本信息修改.clearMess(); card.show(pCenter,\修改界面\ }

else if(e.getSource()==查询与打印){ 基本信息查询与打印.clearMess();

基本信息查询与打印.setLocation(getBounds().x+getBounds().width,getBounds().y); 基本信息查询与打印.setVisible(true); }

else if(e.getSource()==删除) card.show(pCenter,\删除界面\ else if(e.getSource()==欢迎界面) card.show(pCenter,\欢迎界面\ }

public static void main(String args[]){ new ManagerWindow(); } }

/*--------- ModifySituation --------------------*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*;

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException;

import java.sql.Statement; import java.util.*;

import javax.swing.filechooser.*;

public class ModifySituation extends JPanel implements ActionListener{ StudentPicture pic;

HashMap 基本信息表=null; JTextField 学号,姓名,年级,出生; JComboBox 专业;

JButton 选择照片; JRadioButton 男,女; ButtonGroup group=null; JButton 开始修改,录入修改,重置; FileInputStream inOne=null; ObjectInputStream inTwo=null; FileOutputStream outOne=null; ObjectOutputStream outTwo=null; File systemFile,imagePic; JComboBox oldMess; Student stu=null;

public ModifySituation(File file){ systemFile=file;

pic=new StudentPicture(); 学号=new JTextField(6);

姓名=new JTextField(6); 专业=new JComboBox(); try{

FileReader inOne=new FileReader(\专业.txt\ BufferedReader inTwo= new BufferedReader(inOne); String s=null; int i=0;

while((s=inTwo.readLine())!=null) 专业.addItem(s); inOne.close(); inTwo.close(); }

catch(IOException exp){ 专业.addItem(\数学\

专业.addItem(\计算机科学与技术\ }

年级=new JTextField(6); 出生=new JTextField(6); 选择照片=new JButton(\选择\ group=new ButtonGroup(); 男=new JRadioButton(\男\ 女=new JRadioButton(\女\ group.add(男); group.add(女);

oldMess=new JComboBox(); 开始修改=new JButton(\开始修改\ 录入修改=new JButton(\录入修改\ 录入修改.setEnabled(false); 选择照片.setEnabled(false); 重置=new JButton(\重置\ 学号.addActionListener(this); 开始修改.addActionListener(this); 录入修改.addActionListener(this); 重置.addActionListener(this); 选择照片.addActionListener(this);

Box box1=Box.createHorizontalBox();

box1.add(new JLabel(\输入要修改信息的学号:\

box1.add(学号); box1.add(开始修改);

Box box2=Box.createHorizontalBox(); box2.add(new JLabel(\新)姓名:\ box2.add(姓名);

Box box3=Box.createHorizontalBox(); box3.add(new JLabel(\新)性别:\ box3.add(男); box3.add(女);

Box box4=Box.createHorizontalBox(); box4.add(new JLabel(\新)专业:\ box4.add(专业);

Box box5=Box.createHorizontalBox(); box5.add(new JLabel(\新)年级:\ box5.add(年级);

Box box6=Box.createHorizontalBox(); box6.add(new JLabel(\新)出生:\ box6.add(出生);

Box box7=Box.createHorizontalBox(); box7.add(new JLabel(\学生已有的数据:\ box7.add(oldMess);

Box boxH=Box.createVerticalBox(); boxH.add(box1); boxH.add(box2); boxH.add(box3); boxH.add(box4); boxH.add(box5); boxH.add(box6); boxH.add(box7);

boxH.add(Box.createVerticalGlue());

JPanel picPanel=new JPanel();

picPanel.setBackground(Color.green); picPanel.add(new JLabel(\选择照片:\ picPanel.add(选择照片); JPanel putButton=new JPanel(); putButton.setBackground(Color.yellow); putButton.add(录入修改); putButton.add(重置); JPanel messPanel=new JPanel(); messPanel.setBackground(Color.pink); messPanel.add(boxH);

setLayout(new BorderLayout()); JSplitPane splitV=

new JSplitPane(JSplitPane.VERTICAL_SPLIT,picPanel,pic);

JSplitPane splitH=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,messPanel,splitV); add(splitH,BorderLayout.CENTER); add(putButton,BorderLayout.SOUTH); validate(); }

public void actionPerformed(ActionEvent e){ if(e.getSource()==开始修改||e.getSource()==学号){ oldMess.removeAllItems(); String number=\ imagePic=null; stu=null; Connection con; Statement sql; ResultSet rs; String mes;

number=学号.getText();

if(number.length()>0){ /* try {

Class.forName(\ }

catch(ClassNotFoundException e1) {

System.out.println(e1); } try{

con=DriverManager.getConnection(\

sql=con.createStatement();

rs=sql.executeQuery(\ if(!rs.next() )

{ String warning=\该学号不存在，请重输！\

JOptionPane.showMessageDialog(this,warning,\警告\ }

else

{ while(rs.next())

{录入修改.setEnabled(true);

选择照片.setEnabled(true); String num=rs.getString(\ String name=rs.getString(\ String zhuanye=rs.getString(\String sex=rs.getString(\ String borth=rs.getString(\ String nianji=rs.getString(\ 姓名.setText(name);

// 专业.setText(zhuanye); 年级.setText(nianji);

出生.setText(borth); if(sex.equals(\男\ 男.setSelected(true); else

女.setSelected(true); } } }

catch(SQLException e2) {

System.out.println(e2); } } }

else if(e.getSource()==重置){ clearMess();

录入修改.setEnabled(false); 选择照片.setEnabled(false); } }

public void clearMess() {

学号.setText(null); 姓名.setText(null); 年级.setText(null); 出生.setText(null);

oldMess.removeAllItems(); 选择照片.setText(\选择\ imagePic=null; pic.setImage(imagePic);

pic.repaint(); } }*/ try {

inOne=new FileInputStream(systemFile); inTwo=new ObjectInputStream(inOne);

基本信息表=(HashMap)inTwo.readObject(); inOne.close(); inTwo.close(); }

catch(Exception ee){}

if(基本信息表.containsKey(number)){ 录入修改.setEnabled(true); 选择照片.setEnabled(true); stu=基本信息表.get(number);

oldMess.addItem(\姓名:\ oldMess.addItem(\专业:\ oldMess.addItem(\年级:\ oldMess.addItem(\出生日期:\ if(stu.getSex().equals(\男\ 男.setSelected(true); else

女.setSelected(true); imagePic=stu.getImagePic(); pic.setImage(imagePic); pic.repaint();

姓名.setText(stu.getName()); 年级.setText(stu.getGrade()); 出生.setText(stu.getBorth());

} else{

录入修改.setEnabled(false); 选择照片.setEnabled(false); String warning=\该学号不存在!\

JOptionPane.showMessageDialog(this,warning,\警告\

JOptionPane.WARNING_MESSAGE); clearMess(); } } else{

录入修改.setEnabled(false); 选择照片.setEnabled(false); String warning=\必须要输入学号!\

JOptionPane.showMessageDialog(this,warning,\警告\ clearMess(); } }

else if(e.getSource()==录入修改){ String number=\ number=学号.getText(); if(number.length()>0){ try {

inOne=new FileInputStream(systemFile); inTwo=new ObjectInputStream(inOne);

基本信息表=(HashMap)inTwo.readObject(); inOne.close(); inTwo.close(); }

catch(Exception ee){}

if(基本信息表.containsKey(number)){

String question=\该生基本信息已存在,您想修改他(她)的基本信息吗?\ JOptionPane.showMessageDialog(this,question,\警告\

JOptionPane.QUESTION_MESSAGE); String m=\基本信息将被修改!\

int ok=JOptionPane.showConfirmDialog(this,m,\确认\

JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE); if(ok==JOptionPane.YES_OPTION){ String name=姓名.getText(); if(name.length()==0) name=stu.getName();

String discipling=(String)专业.getSelectedItem(); if(discipling==null) discipling=stu.getDisciping(); String grade=年级.getText(); if(grade.length()==0) grade=stu.getGrade(); String borth=出生.getText();

if(borth.length()==0) borth=stu.getBorth(); String sex=null; if(男.isSelected()) sex=男.getText(); else

sex=女.getText(); if(imagePic==null)

imagePic=stu.getImagePic(); Student 学生=new Student(); 学生.setNumber(number); 学生.setName(name);

学生.setDiscipling(discipling); 学生.setGrade(grade); 学生.setBorth(borth); 学生.setSex(sex);

学生.setImagePic(imagePic); try{

outOne=new FileOutputStream(systemFile); outTwo=new ObjectOutputStream(outOne); 基本信息表.put(number,学生); outTwo.writeObject(基本信息表);

outTwo.close(); outOne.close(); clearMess(); } catch(Exception ee){} 录入修改.setEnabled(false); 选择照片.setEnabled(false); }

else if(ok==JOptionPane.NO_OPTION){ 录入修改.setEnabled(true); 选择照片.setEnabled(true); } } else{

String warning=\该学号没有基本信息,不能修改!\ JOptionPane.showMessageDialog(this,warning,\警告\

JOptionPane.WARNING_MESSAGE); 录入修改.setEnabled(false); 选择照片.setEnabled(false); clearMess();

} } else{

String warning=\必须要输入学号!\

JOptionPane.showMessageDialog(this,warning,\警告\ 录入修改.setEnabled(false); clearMess();

录入修改.setEnabled(false); 选择照片.setEnabled(false); } }

else if(e.getSource()==选择照片){

JFileChooser chooser=new JFileChooser();

FileNameExtensionFilter filter = new FileNameExtensionFilter( \ chooser.setFileFilter(filter);

int state=chooser.showOpenDialog(null); File choiceFile=chooser.getSelectedFile();

if(choiceFile!=null&&state==JFileChooser.APPROVE_OPTION){ 选择照片.setText(choiceFile.getName()); imagePic=choiceFile; pic.setImage(imagePic); pic.repaint(); } }

else if(e.getSource()==重置){ clearMess();

录入修改.setEnabled(false); 选择照片.setEnabled(false);

} }

public void clearMess(){ 学号.setText(null); 姓名.setText(null); 年级.setText(null); 出生.setText(null);

oldMess.removeAllItems(); 选择照片.setText(\选择\ imagePic=null; pic.setImage(imagePic); pic.repaint(); } }

/*---------------------- Student ----------*/ import java.io.*;

public class Student implements Serializable{ String number,name,discipling,grade,borth,sex; File imagePic;

public void setNumber(String number){ this.number=number; }

public String getNumber(){ return number; }

public void setName(String name){ this.name=name; }

public String getName(){ return name;

}

public void setDiscipling(String discipling){ this.discipling=discipling; }

public String getDisciping(){ return discipling; }

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 void setSex(String sex){ this.sex=sex; }

public String getSex(){ return sex; }

public void setImagePic(File image){ imagePic=image; }

public File getImagePic(){ return imagePic;

} }

/*---------------- StudentPicture -----*/ import javax.swing.*; import java.io.*; import java.awt.*;

public class StudentPicture extends JPanel{ File imageFile; Toolkit tool;

public StudentPicture(){ tool=getToolkit(); }

public void setImage(File imageFile){ this.imageFile=imageFile; repaint(); }

public void paintComponent(Graphics g){ super.paintComponent(g); int w=getBounds().width; int h=getBounds().height; if(imageFile!=null){

Image image=tool.getImage(imageFile.getAbsolutePath()); g.drawImage(image,0,0,w,h,this); } else

g.drawString(\没有选择照片图像\ } }

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