El código está directamente activado, hay diez clases, tres cuadros de diálogo, una clase de información del alumno, una clase de operación del alumno, una clase de información de contraseña, una clase de operación de contraseña, más una clase de interfaz y una clase principal
package jiemian;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import jiemian.STxinxi;
import jiemian.Student;
public class Jm extends JFrame implements ActionListener {
private JButton button1,button2,button3,button4,button5,button6,button7;
private JTextField text1,text2,text3,text4;
private JTextField text5,text6;
private JLabel label1,label2,label3,label4,label5;
private JTable tabel;
private Mydialog dialog=new Mydialog(this);
List<STxinxi>sc=new ArrayList<STxinxi>();
public Jm() throws IOException {
this.setTitle("学生管理系统");
this.setBounds(100, 100, 800, 800);
this.setLayout(null);
button1=new JButton("添加信息");
button1.setBounds(400,350, 100, 40);
button2=new JButton("修改信息");
button2.setBounds(600,350, 100, 40);
button3=new JButton("查询信息");
button3.setBounds(600, 520, 100, 40);
button7=new JButton("删除信息");
button7.setBounds(400, 410, 100, 40);
Font f = new Font("黑体", Font.BOLD, 40);
label1=new JLabel("学号:");label1.setBounds(400, 10, 70, 60);
label2=new JLabel("姓名:");label2.setBounds(400, 70, 70, 60);
label3=new JLabel("专业:");label3.setBounds(400, 130, 70, 60);
label4=new JLabel("年龄:");label4.setBounds(400, 190, 70, 60);
label5=new JLabel("请输入查询学号:");label5.setBounds(10, 520, 140, 60);
text1=new JTextField();text1.setBounds(470, 10, 200, 60);
text2=new JTextField();text2.setBounds(470, 70, 200, 60);
text3=new JTextField();text3.setBounds(470, 130, 200, 60);
text4=new JTextField();text4.setBounds(470, 190, 200, 60);
text5=new JTextField();text5.setBounds(150, 520, 300, 60);
text6=new JTextField();text6.setBounds(10, 600, 500, 60);
Student a=new Student();
a.read();
sc=a.getlist();
int t=sc.size();
String[] tabelValues= {"学号","姓名","专业","年龄"};
String[][] columnName=new String[t+1][4];
for (int i=0;i<sc.size();i++) {
columnName[i][0]=sc.get(i).getStudent_number();
columnName[i][1]=sc.get(i).getStudent_name();
columnName[i][2]=sc.get(i).getStudent_type();
columnName[i][3]=sc.get(i).getStudent_age()+"";
}
tabel=new JTable(columnName,tabelValues);
JScrollPane scrotable=new JScrollPane(tabel);
scrotable.setBounds(0, 0, 400, 500);
this.add(button1);
this.add(button2);
this.add(button3);
this.add(button7);
this.add(label1);
this.add(label2);
this.add(label3);
this.add(label4);
this.add(label5);
this.add(text1);
this.add(text2);
this.add(text3);
this.add(text4);
this.add(text5);
this.add(text6);
this.add(scrotable);
button1.addActionListener(this);
button3.addActionListener(this);
button7.addActionListener(this);
this.setVisible(true);
}
public void actionPerformed(ActionEvent arg0) {
String ss=null;
String button=arg0.getActionCommand();
if (button.equals("删除信息")) {
Mydialog2 p=new Mydialog2();
p.setVisible(true);
}
if (button.equals("添加信息")) {
button5=new JButton("确定");
button6=new JButton("取消");
String id=text1.getText();
String name=text2.getText();
String type=text3.getText();
int age=Integer.parseInt(text4.getText());
Student a=new Student();
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
dialog.setVisible(true);
if(dialog.getorder().equals("确定"))
{ a.add(id, name,type, age);
try {
a.writer();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
text1.setText("");
text2.setText("");
text3.setText("");
text4.setText("");
}
if(dialog.getorder().equals("取消")) {
text1.setText("");
text2.setText("");
text3.setText("");
text4.setText("");
}
}
if (button.equals("查询信息")) {
Student a=new Student();
boolean bool=false;
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
sc=a.getlist();
for (int i=0;i<sc.size();i++) {
if (sc.get(i).getStudent_number().equals(text5.getText()))
{
ss="学号："+sc.get(i).getStudent_number()+" 姓名："+sc.get(i).getStudent_name()+" 专业："+sc.get(i).getStudent_type()+" 年龄："+sc.get(i).getStudent_age();
bool=true;
}
}
if (bool) {
text6.setText(ss);}
else {
JDialog dg=new JDialog();
JLabel lb=new JLabel("查无此学生");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("警告");
dg.setLocation(600, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
try {
a.writer();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
}
}
package jiemian;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class Mydialog extends JDialog {
private JButton button1,button2;
private JLabel label1,label2;
private String s1;
public Mydialog(JFrame parent) {
super(parent,"警告",true);
this.setLocation(600, 400);
this.setSize(200, 160);
this.setLayout(new GridLayout(2,2));
button1=new JButton("确定");
button2=new JButton("取消");
label1=new JLabel("确定添加信息");
label2=new JLabel();
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
s1="确定";
dispose();
}
});
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
s1="取消";
dispose();
}
});
this.add(label1);
this.add(label2);
this.add(button1);
this.add(button2);
}
public String getorder() {
return s1;
}
}
package jiemian;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
public class Mydialog1 extends JDialog implements ActionListener{
private JLabel label1,label2;
private JTextField text1,text2;
private JButton button1,button2,button3;
List<userinform> user=new ArrayList<userinform>();
public Mydialog1(JFrame parent) {
//super(parent,"警告",true);
this.setTitle("注冊信息");
this.setLayout(null);
this.setSize(500, 400);
this.setLocation(600, 500);
label1=new JLabel("用户名");label1.setBounds(120, 120, 50, 30);
label2=new JLabel("密码");label2.setBounds(120, 160, 50, 30);
text1=new JTextField();text1.setBounds(170, 120, 190, 30);
text2=new JTextField();text2.setBounds(170, 160, 190, 30);
button1=new JButton("确定");button1.setBounds(200, 300, 80, 30);
button2=new JButton("取消");button2.setBounds(300, 300, 80, 30);
button3=new JButton("验证");button3.setBounds(390, 120,80, 30);
this.add(button1);
this.add(button2);
this.add(text1);
this.add(text2);
this.add(button3);
this.add(label1);
this.add(label2);
button1.addActionListener(this);
button2.addActionListener(this);
button3.addActionListener(this);
}
@Override
public void actionPerformed(ActionEvent e) {
String button=e.getActionCommand();
if (button.equals("验证")) {
user a=new user();
boolean bool=true;
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
user=a.getlist();
for (int i=0;i<user.size();i++) {
if (user.get(i).getName().equals(text1.getText())) {
bool=false;
}
}
if (bool) {
JDialog dg=new JDialog();
JLabel lb=new JLabel("用户名可用");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("恭喜");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
else {
JDialog dg=new JDialog();
JLabel lb=new JLabel("用户名存在");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("警告");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
}
if(button.equals("确定")) {
user a=new user();
boolean bool=true;
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
user=a.getlist();
for (int i=0;i<user.size();i++) {
if (user.get(i).getName().equals(text1.getText())) {
bool=false;
}
}
if (bool) {
a.add(text1.getText(),text2.getText());
try {
a.writer();
} catch (IOException d) {
// TODO 自动生成的 catch 块
d.printStackTrace();
}
this.setVisible(false);
JDialog dg=new JDialog();
JLabel lb=new JLabel("添加成功");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("恭喜");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
else {
JDialog dg=new JDialog();
JLabel lb=new JLabel("用户已存在");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("警告！");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
}
if(button.equals("取消")) {
this.setVisible(false);
}
}
}
package jiemian;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JTextField;
public class Mydialog2 extends JDialog implements ActionListener {
private JLabel label1;
private JButton button1, button2;
private JTextField text1;
List<STxinxi> sc = new ArrayList<STxinxi>();
public Mydialog2() {
this.setTitle("删除学生信息");
this.setSize(500, 400);
this.setLocation(600, 500);
this.setLayout(null);
label1 = new JLabel("输入删除学号");
label1.setBounds(110, 100, 80, 30);
text1 = new JTextField();
text1.setBounds(210, 100, 150, 30);
button1 = new JButton("确定");
button1.setBounds(130, 260, 80, 30);
button2 = new JButton("取消");
button2.setBounds(280, 260, 80, 30);
this.add(label1);
this.add(text1);
this.add(button1);
this.add(button2);
button1.addActionListener(this);
button2.addActionListener(this);
}
public void actionPerformed(ActionEvent arg0) {
String button = arg0.getActionCommand();
List<STxinxi> ss = new ArrayList<STxinxi>();
boolean bool = false;
if (button.equals("确定")) {
Student a = new Student();
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
sc = a.getlist();
for (STxinxi sc1 : sc) {
if (sc1.getStudent_number().equals(text1.getText())) {
ss.add(sc1);
bool = true;
}
}
if (bool) {
sc.removeAll(ss);
JDialog dg = new JDialog();
JLabel lb = new JLabel("删除成功");
dg.setLayout(new GridLayout(1, 0));
dg.setTitle("恭喜");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
this.setVisible(false);
dg.setVisible(true);
try {
a.writer();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
} else {
JDialog dg = new JDialog();
JLabel lb = new JLabel("未找到用户");
dg.setLayout(new GridLayout(1, 0));
dg.setTitle("抱歉");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
}
if (button.equals("取消")) {
this.setVisible(false);
}
}
}
package jiemian;
import java.util.*;
import java.io.*;
public class Student {
Scanner cin = new Scanner(System.in);
List<STxinxi> sc = new ArrayList<STxinxi>();
public void read() throws IOException {
File fileNew = new File("D:\\student\\student.txt");
File rootFile = fileNew.getParentFile();
if (!fileNew.exists()) {
try {
rootFile.mkdirs();
fileNew.createNewFile();
} catch (IOException e) {
System.out.println(fileNew + "文件创建失败");
}
}
BufferedReader read = new BufferedReader(new FileReader("D:\\student\\student.txt"));
String stu = read.readLine();
while (null != stu) {
String[] stu1 = stu.split(" ");
STxinxi sc1 = new STxinxi();
sc1.setStudent_number(stu1[0]);
sc1.setStudent_name(stu1[1]);
sc1.setStudent_type(stu1[2]);
sc1.setStudent_age(Integer.parseInt(stu1[3]));
sc.add(sc1);
stu = read.readLine();
}
read.close();
}
public void add() {
System.out.println("请输入学号，姓名，年龄，专业");
String student_id = cin.next();
String student_name = cin.next();
int student_age = cin.nextInt();
String student_type = cin.next();
STxinxi sc1 = new STxinxi();
sc1.setStudent_age(student_age);
sc1.setStudent_name(student_name);
sc1.setStudent_number(student_id);
sc1.setStudent_type(student_type);
sc.add(sc1);
}
public void add(String student_id, String student_name, String student_type, int student_age) {
STxinxi sc1 = new STxinxi();
sc1.setStudent_age(student_age);
sc1.setStudent_name(student_name);
sc1.setStudent_number(student_id);
sc1.setStudent_type(student_type);
sc.add(sc1);
}
public List getlist() {
return sc;
}
public void show() {
for (STxinxi sc1 : sc) {
System.out.println(sc1.showAll());
}
}
public void writer() throws IOException {
FileOutputStream out = new FileOutputStream("D:\\student\\student.txt");
for (STxinxi sc1 : sc) {
out.write(sc1.getAll().getBytes());
}
out.close();
}
}
package jiemian;
public class STxinxi {
private int student_age;
private String student_type;
private String student_number;
private String student_name;
public STxinxi(String student_number,String student_name,String student_type,int student_age) {
super();
this.student_age= student_age;
this.student_type = student_type;
this.student_number = student_number;
this.student_name = student_name;
}
public STxinxi() {
super();
}
public int getStudent_age() {
return student_age;
}
public void setStudent_age(int student_grade) {
this.student_age = student_grade;
}
public String getStudent_type() {
return student_type;
}
public void setStudent_type(String student_type) {
this.student_type = student_type;
}
public String getStudent_number() {
return student_number;
}
public void setStudent_number(String student_number) {
this.student_number = student_number;
}
public String getStudent_name() {
return student_name;
}
public void setStudent_name(String student_name) {
this.student_name = student_name;
}
public String showAll() {
return (getStudent_number()+" "+getStudent_name()+" "+getStudent_type()+" "+getStudent_age());
}
public String getAll() {
return (getStudent_number()+" "+getStudent_name()+" "+getStudent_type()+" "+getStudent_age()+"\r\n");
}
}
package jiemian;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.*;
public class user {
List<userinform> user=new ArrayList<userinform>();
public void read() throws IOException {
File fileNew = new File("D:\\use\\use.txt");
File rootFile = fileNew.getParentFile();
if (!fileNew.exists()) {
try {
rootFile.mkdirs();
fileNew.createNewFile();
} catch (IOException e) {
System.out.println(fileNew + "文件创建失败");
}
}
BufferedReader read = new BufferedReader(new FileReader("D:\\use\\use.txt"));
String use = read.readLine();
while (null != use) {
String[] stu1 = use.split(" ");
userinform use1 = new userinform();
use1.setName(stu1[0]);
use1.setMima(stu1[1]);
user.add(use1);
use = read.readLine();
}
read.close();
}
public List getlist() {
return user;
}
public void add(String name,String mima) {
userinform use=new userinform();
use.setName(name);
use.setMima(mima);
user.add(use);
}
public void writer() throws IOException {
FileOutputStream out = new FileOutputStream("D:\\use\\use.txt");
for (userinform sc1 : user) {
out.write(sc1.getAll().getBytes());
}
out.close();
}
}
package jiemian;
public class userinform {
private String name;
private String mima;
public userinform(String name,String mima) {
super();
this.name=name;
this.mima=mima;
}
public userinform() {
super();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMima() {
return mima;
}
public void setMima(String mima) {
this.mima = mima;
}
public String getAll() {
return getName()+" "+getMima()+"\r\n";
}
}
package jiemian;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Yanzheng extends JFrame implements ActionListener {
private JTextField text1,text3;
private JButton button1,button2,button3;
private JLabel label1,label2;
private JPasswordField text2;
List<userinform> user=new ArrayList<userinform>();
public Yanzheng() {
this.setTitle("用户登录");
this.setLayout(null);
this.setSize(500, 400);
this.setLocation(300, 200);
label1=new JLabel("用户名:");label1.setBounds(150, 130, 50, 30);
label2=new JLabel("密码:");label2.setBounds(150, 160, 50, 30);
text1=new JTextField();text1.setBounds(200, 130, 200, 30);
text2=new JPasswordField();text2.setBounds(200, 160, 200, 30);
button1=new JButton("确定");button1.setBounds(130, 300, 80, 30);
button2=new JButton("取消");button2.setBounds(320, 300, 80, 30);
button3=new JButton("注册");button3.setBounds(400, 130, 60, 30);
this.add(label1);
this.add(label2);
this.add(text1);
this.add(text2);
this.add(button1);
this.add(button2);
this.add(button3);
button1.addActionListener(this);
button2.addActionListener(this);
button3.addActionListener(this);
this.setVisible(true);
}
public void actionPerformed(ActionEvent arg0) {
String button=arg0.getActionCommand();
if (button.equals("确定")) {
user a=new user();
boolean bool=false;
try {
a.read();
} catch (IOException e1) {
// TODO 自动生成的 catch 块
e1.printStackTrace();
}
user=a.getlist();
for (int i=0;i<user.size();i++) {
if (user.get(i).getName().equals(text1.getText())) {
if (user.get(i).getMima().equals(text2.getText())) {
bool=true;
try {
Jm b=new Jm();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
this.setVisible(false);
}
}
}
if (bool) {
JDialog dg=new JDialog();
JLabel lb=new JLabel("登陆成功");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("恭喜");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
else {
JDialog dg=new JDialog();
JLabel lb=new JLabel("输入信息有误");
dg.setLayout(new GridLayout(1,0));
dg.setTitle("警告");
dg.setLocation(1000, 580);
dg.setSize(200, 100);
dg.add(lb);
dg.setVisible(true);
}
}
if (button.equals("取消"))this.setVisible(false);
if (button.equals("注册")) {
Mydialog1 e=new Mydialog1(this);
e.setVisible(true);
}
}
}
package jiemian;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {
Yanzheng a=new Yanzheng();
}
}
