Realize the student information management system based on Java swing+MySQL: Functions: 1 The function of entering the basic information of students; 2 The function of querying the basic information of students; 3 The function of modifying the basic information of students; 4 The function of deleting basic information of students; The function; it is enough to cope with the general class setting, and I will share it with everyone.
Files shared through Baidu Netdisk: Student Information Management System
Link: https://pan.baidu.com/s/1NgK0C4NAa4gyCaLdeW4GZA?pwd=bigo
Extraction code: bigo
Copy this content and open "Baidu Netdisk APP to get it"
It includes all code source files + mysql8.0.25 driver jar package + background image of the login page 345.jpg
1. Development environment: jdk11+win10+mysql 8+IDEA
Remember to connect the database with IDEA or eclipse, and remember to add the database driver jar package
These two are to add jar package and idea to connect to mysql, you can make a reference
IDEA imports mysql database driver_follow the sun.'s blog-CSDN bloghttps: 
//blog.csdn.net/qq_54705917/article/details/123484397 ?spm=1001.2014.3001.5502 IDEA connects to the mysql database_follows the sun.'s blog-CSDN blog https://blog.csdn.net/qq_54705917/article/details/123484737?spm=1001.2014.3001.5502
2. Database design
code:
库：create database student
表：create table stu(
stuId varchar(20),
stuName varchar(20),
stuSex varchar(20),
stuAge varchar(20),
stuJG varchar(20),
stuLX varchar(20),
stuBJ varchar(20)
);
3. Window and function design
(1). Main function
main.java
import javax.swing.*;
public class main {
public static void main(String[] args) {
JFrame jf = new StuLogin();
}
}
(2). Login interface (the default account password is: admin)
StuLogin.java
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class StuLogin extends JFrame {
private StuLogin self;
private ImageIcon imageIcon;
private Image image;
private String userid;// 登陆用户名和密码
private String password;
private JLabel unLabel = new JLabel("账号：");// 登陆面板控件
private JTextField unField = new JTextField();
private JLabel pwLabel = new JLabel("密码：");
private JPasswordField pwField = new JPasswordField();
private JButton dl = new JButton("登录");
private JButton d2 = new JButton("重置");
public StuLogin() {
this.self = this;
this.setSize(350, 300);// 设置登陆面板
设置窗口背景图
//先将contentPane设置成透明的
((JPanel)getContentPane()).setOpaque(false);
//再设置图片
imageIcon = new ImageIcon("345.jpg");//图标组件
image = imageIcon.getImage();
JLabel imgLabel = new JLabel(imageIcon);
getLayeredPane().add(imgLabel, new Integer(Integer.MIN_VALUE));
imgLabel.setBounds(0,0,400,300); //背景图片的位置
this.setIconImage(image);//设置窗口图像
this.setLocation(600,300);
this.setVisible(true);
this.setResizable(false);
this.setLayout(null);
// this.getContentPane().setBackground(Color.BLACK);设置窗口背景色；
//设置窗口名称
this.setTitle("学生信息管理系统");
unLabel.setSize(50, 30);
unLabel.setLocation(60, 40);
unLabel.setForeground(Color.red);
unLabel.setFont(new Font("楷体",Font.BOLD,15));
unField.setSize(150, 35);
unField.setLocation(110, 35);
pwLabel.setSize(50, 30);
pwLabel.setLocation(60, 100);
pwLabel.setForeground(Color.red);
pwLabel.setFont(new Font("楷体",Font.BOLD,15));
pwField.setSize(150, 35);
pwField.setLocation(110, 100);
dl.setSize(80, 35);
dl.setLocation(65, 175);
dl.setBackground(Color.red);
d2.setSize(80, 35);
d2.setLocation(185, 175);
d2.setBackground(Color.red);
dl.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
userid = unField.getText();
password = pwField.getText();
if(userid.equals("admin")&&password.equals("admin")) {
self.setVisible(false);
// JOptionPane.showMessageDialog(null, "登录成功", "登录情况",JOptionPane.PLAIN_MESSAGE);
new StuManager();
} else {
JOptionPane.showMessageDialog(null, "账号或密码错误！", "登录情况",JOptionPane.PLAIN_MESSAGE);
}
}
});
d2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
unField.setText("");
pwField.setText("");
}
});
this.add(unLabel);
this.add(unField);
this.add(pwLabel);
this.add(pwField);
this.add(dl);
this.add(d2);
}
}I will put the background image of the login page in the link shared above
(3). Administrator interface (the delete function is here)
StuManager.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class StuManager extends JFrame implements ActionListener {
//定义一些控件
private Object[] types = {"-请选择查询方式-", "按学号号查询", "姓名查询", "性别查询","按年龄查询", "按籍贯查询","按班级查询"};
private JComboBox searchType = new JComboBox(types); //创建一个组合框用来选取查询不同的学生信息·
JPanel jp1,jp2;
JLabel jl1;
JButton jb1,jb2,jb3,jb4;
JTable jt;
JScrollPane jsp;
JTextField jtf1,jtf2;
String strRS;
StuModel sm;
//定义连接数据库的变量
PreparedStatement ps;
Connection ct = null;
ResultSet rs = null;
//构造函数
public StuManager(){
jp1 = new JPanel();
jp1.setBackground(Color.gray);
jtf1 = new JTextField(15);
jtf2 = new JTextField();
jtf2.setEditable(false);
jb1 = new JButton("查询");
jb1.addActionListener(this);
jl1 = new JLabel("总人数：");
jp1.add(searchType);
jp1.add(jtf1);
jp1.add(jb1);
jp1.add(jl1);
jp1.add(jtf2);
jb2 = new JButton("添加");
jb2.setSize(100,500);
jb2.addActionListener(this);
jb3 = new JButton("修改");
jb3.addActionListener(this);
jb4 = new JButton("删除");
jb4.addActionListener(this);
jp2 = new JPanel();
jp2.add(jb2);
jp2.add(jb3);
jp2.add(jb4);
jp2.setBackground(Color.gray);
//创建模型对象
sm = new StuModel();
//初始化总人数
strRS=String.valueOf(sm.getRowCount());
jtf2.setText(strRS);
//初始化表和滚动面板
jt = new JTable(sm);
jsp = new JScrollPane(jt);
//将jsp放入到jframe中
this.add(jsp);
this.add(jp1,BorderLayout.PAGE_START);
this.add(jp2,BorderLayout.PAGE_END);
this.setTitle("学生信息管理系统");
// this.pack();
this.setSize(600, 400);
this.setLocation(500, 200);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
}
public void actionPerformed(ActionEvent arg0) {
//判断是哪个按钮被点击
if(arg0.getSource() == jb1){
System.out.println("用户希望被查询...");
int index = searchType.getSelectedIndex();
String sql = new String();
if(index == 0){
sql = "select * from stu ";
}
else if(index == 1){
//因为把对表的数据封装到StuModel中，可以比较简单的完成查询
String Id =this.jtf1.getText().trim();
//写一个sql语句
sql = "select * from stu where stuId = '"+Id+"' ";
}
else if(index == 2){
String name =this.jtf1.getText().trim();
sql = "select * from stu where stuName = '"+name+"' ";
}
else if(index == 3){
String sex =this.jtf1.getText().trim();
sql = "select * from stu where stuSex = '"+sex+"' ";
}
else if(index == 4){
String age =this.jtf1.getText().trim();
sql = "select * from stu where stuAge = '"+age+"' ";
}
else if(index ==5){
String jg =this.jtf1.getText().trim();
sql = "select * from stu where stuJG= '"+jg+"' ";
}
else if(index ==6){
String bj =this.jtf1.getText().trim();
sql = "select * from stu where stuBJ= '"+bj+"' ";
}
//构建一个数据模型类，并更新
sm = new StuModel(sql);
strRS=String.valueOf(sm.getRowCount());
jtf2.setText(strRS);
//更新jtable
jt.setModel(sm);
}
//一、弹出添加界面
else if(arg0.getSource() == jb2){
System.out.println("添加...");
StuAddDiag sa = new StuAddDiag(this,"添加学生",true);
//重新再获得新的数据模型,
sm = new StuModel();
strRS=String.valueOf(sm.getRowCount());
jtf2.setText(strRS);
jt.setModel(sm);
}else if(arg0.getSource() == jb4){
//二、删除记录
//1.得到学生的ID
int rowNum = this.jt.getSelectedRow();//getSelectedRow会返回给用户点中的行
//如果该用户一行都没有选，就返回-1
if(rowNum == -1){
//提示
JOptionPane.showMessageDialog(this, "请选中一行");
return ;
}
//得到学术ID
String stuId = (String)sm.getValueAt(rowNum, 0);
//连接数据库,完成删除任务
try{
//1.加载驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//2.连接数据库
String url = "jdbc:mysql://localhost:3306/student";
String user = "root";
String passwd = "666666";
ct = DriverManager.getConnection(url, user, passwd);
// System.out.println("连接成功");
ps = ct.prepareStatement("delete from stu where stuId = ?");
ps.setString(1,stuId);
ps.executeUpdate();
JOptionPane.showMessageDialog(null, "删除成功", "删除情况",JOptionPane.PLAIN_MESSAGE);
}catch(Exception e){
e.printStackTrace();
}finally{
try{
if(rs!= null){
rs.close();
rs = null;
}
if(ps!= null){
ps.close();
ps = null;
}
if(ct != null){
ct.close();
ct = null;
}
} catch(Exception e){
e.printStackTrace();
}
}
sm = new StuModel();
strRS=String.valueOf(sm.getRowCount());
jtf2.setText(strRS);
//更新jtable
jt.setModel(sm);
}else if(arg0.getSource() == jb3){
// System.out.println("11111");
//三、用户希望修改
int rowNum = this.jt.getSelectedRow();
if(rowNum == -1){
//提示
JOptionPane.showMessageDialog(this, "请选择一行");
return ;
}
//显示对话框
// System.out.println( "12435");
StuUpDiag su = new StuUpDiag(this, "修改学生信息", true, sm, rowNum);
sm = new StuModel();
jt.setModel(sm);
}
}
}(4).Model interface
StuModel.java
/*
用来刷新、呈现数据库
* 这是我的一个stu表的模型
* 可以把对学生表的操作全都封装到这个类
*/
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Vector;
import javax.swing.table.*;
public class StuModel extends AbstractTableModel{
//rowData存放行数据，columnNames存放列名
Vector rowData,columnNames;//Vector和ArrayList一样，底层也是一个Object类型的数组Object[]。; 构造一个空向量，使其内部数据数组的大小为10，其标准容量增量为零
//定义连接数据库的变量
Statement stat = null;
Connection ct = null;
ResultSet rs = null;
//初始化
public void init(String sql){
if(sql.equals("")){
sql = "select * from stu";
}
//中间
//设置列名
columnNames = new Vector();//这里是一维向量表示列；
columnNames.add("学号");
columnNames.add("名字");
columnNames.add("性别");
columnNames.add("年龄");
columnNames.add("籍贯");
columnNames.add("联系方式");
columnNames.add("班级");
//rowData存放多行
rowData = new Vector();
try{
//1.加载驱动
Class.forName("com.mysql.cj.jdbc.Driver");
System.out.println("加载成功");
//2.连接数据库
//定义几个常量
String url = "jdbc:mysql://localhost:3306/student";
String user = "root";
String passwd = "666666";//这里你要填写你自己的数据库密码
ct = DriverManager.getConnection(url,user,passwd);
stat = ct.createStatement();//创建stat对象
rs = stat.executeQuery(sql);//查询结果
while(rs.next()){
Vector hang = new Vector();
hang.add(rs.getString(1));
hang.add(rs.getString(2));
hang.add(rs.getString(3));
hang.add(rs.getString(4));
hang.add(rs.getString(5));
hang.add(rs.getString(6));
hang.add(rs.getString(7));
//加入到rowData中
rowData.add(hang);//这里是二维向量，表示行；
}
}catch(Exception e){
e.printStackTrace();
}finally{
try{
if(rs!=null){
rs.close();
rs = null;
}
if(stat != null){
stat.close();
stat = null;
}
if(ct != null){
ct.close();
ct = null;
}
}catch(Exception e){
e.printStackTrace();
}
}
}
//第二个构造函数，通过传递的sql语句来获得数据模型
public StuModel(String sql){
this.init(sql);
}
//构造函数，用于初始化我的数据模型（表）
public StuModel(){
this.init("");
}
//得到共有多少行
public int getRowCount() {
// TODO Auto-generated method stub
return this.rowData.size();
}
//得到共有多少列
public int getColumnCount() {
// TODO Auto-generated method stub
return this.columnNames.size();
}
//得到某行某列的数据
public Object getValueAt(int row, int column) {
// TODO Auto-generated method stub
return ((Vector)(this.rowData.get(row))).get(column);
}
//得到属性名字
public String getColumnName(int column) {
// TODO Auto-generated method stub
return (String)this.columnNames.get(column);
}
}(5). Increase student interface
StuAddDiag.java
import javax.swing.JDialog;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.*;
//用来实现增添读者功能
public class StuAddDiag extends JDialog implements ActionListener {
//定义我需要的swing组件
JLabel jl1,jl2,jl3,jl4,jl5,jl6,jl7;
JTextField jf1,jf2,jf3,jf4,jf5,jf6,jf7;
JPanel jp1,jp2,jp3;
JButton jb1,jb2;
//owner代笔父窗口,title是窗口的名字,modal指定是模式窗口()或者非模式窗口
public StuAddDiag(Frame owner, String title, boolean modal){
//调用父类方法
super(owner,title,modal);
jl1 = new JLabel("学号");
jl2 = new JLabel("名字");
jl3 = new JLabel("性别");
jl4 = new JLabel("年龄");
jl5 = new JLabel("籍贯");
jl6 = new JLabel("联系方式");
jl7 = new JLabel("班级");
jf1 = new JTextField(30);
jf2 = new JTextField(30);
jf3 = new JTextField(30);
jf4 = new JTextField(30);
jf5 = new JTextField(30);
jf6 = new JTextField(30);
jf7 = new JTextField(30);
jb1 = new JButton("添加");
jb1.addActionListener(this::actionPerformed);
jb2 = new JButton("取消");
jb2.addActionListener(this::actionPerformed);
jp1 = new JPanel();
jp2 = new JPanel();
jp3 = new JPanel();
//设置布局
jp1.setLayout(new GridLayout(7,1));
jp2.setLayout(new GridLayout(7,1));
jp3.add(jb1);
jp3.add(jb2);
jp1.add(jl1);
jp1.add(jl2);
jp1.add(jl3);
jp1.add(jl4);
jp1.add(jl5);
jp1.add(jl6);
jp1.add(jl7);
jp2.add(jf1);
jp2.add(jf2);
jp2.add(jf3);
jp2.add(jf4);
jp2.add(jf5);
jp2.add(jf6);
jp2.add(jf7);
this.add(jp1, BorderLayout.WEST);
this.add(jp2, BorderLayout.CENTER);
this.add(jp3, BorderLayout.SOUTH);
this.setLocation(600, 350);
this.setSize(300,200);
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getSource() == jb1){
Connection ct = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try{
//1.加载驱动
Class.forName("com.mysql.cj.jdbc.Driver");
System.out.println("加载成功");
//2.连接数据库
//定义几个常量
String url = "jdbc:mysql://localhost:3306/student";
String user = "root";
String passwd = "666666";
ct = DriverManager.getConnection(url,user,passwd);
//与编译语句对象
String strsql = "insert into stu values(?,?,?,?,?,?,?)";
pstmt = ct.prepareStatement(strsql);
//给对象赋值
pstmt.setString(1,jf1.getText());
pstmt.setString(2,jf2.getText());
pstmt.setString(3,jf3.getText());
pstmt.setString(4,jf4.getText());
pstmt.setString(5,jf5.getText());
pstmt.setString(6,jf6.getText());
pstmt.setString(7,jf7.getText());
pstmt.executeUpdate();
JOptionPane.showMessageDialog(null, "添加成功", "添加情况",-1);
this.dispose();//关闭学生对话框
}catch(Exception arg1){
arg1.printStackTrace();
}finally{
try{
if(rs!=null){
rs.close();
rs = null;
}
if(pstmt != null){
pstmt.close();
pstmt = null;
}
if(ct != null){
ct.close();
ct = null;
}
}catch(Exception arg2){
arg2.printStackTrace();
}
}
}else{
this.dispose();
}
}
}(6). Modify the student interface
StuUpDiag.java
import javax.swing.JDialog;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.*;
/*
// * 是修改学生信息
*/
public class StuUpDiag extends JDialog implements ActionListener {
//定义我需要的swing组件
JLabel jl1,jl2,jl3,jl4,jl5,jl6,jl7;
JTextField jf1,jf2,jf3,jf4,jf5,jf6,jf7;
JPanel jp1,jp2,jp3;
JButton jb1,jb2;
//owner代笔父窗口,title是窗口的名字,modal指定是模式窗口()或者非模式窗口
public StuUpDiag(Frame owner, String title, boolean modal, StuModel sm, int rowNum){
//调用父类方法
super(owner,title,modal);
jl1 = new JLabel("学号");
jl2 = new JLabel("名字");
jl3 = new JLabel("性别");
jl4 = new JLabel("年龄");
jl5 = new JLabel("籍贯");
jl6 = new JLabel("联系方式");
jl7 = new JLabel("班级");
jf1 = new JTextField(30);
jf1.setText((sm.getValueAt(rowNum, 0)).toString());
jf2 = new JTextField(30);
jf2.setText((String)sm.getValueAt(rowNum, 1));
jf3 = new JTextField(30);
jf3.setText(sm.getValueAt(rowNum, 2).toString());
jf4 = new JTextField(30);
jf4.setText((sm.getValueAt(rowNum, 3)).toString());
jf5 = new JTextField(30);
jf5.setText((String)sm.getValueAt(rowNum, 4));
jf6 = new JTextField(30);
jf6.setText((String)sm.getValueAt(rowNum, 5));
jf7 = new JTextField(30);
jf7.setText((String)sm.getValueAt(rowNum, 6));
jb1 = new JButton("修改");
jb1.addActionListener(this::actionPerformed);
jb2 = new JButton("取消");
jb2.addActionListener(this::actionPerformed);
jp1 = new JPanel();
jp2 = new JPanel();
jp3 = new JPanel();
//设置布局
jp1.setLayout(new GridLayout(7,1));
jp2.setLayout(new GridLayout(7,1));
jp3.add(jb1);
jp3.add(jb2);
jp1.add(jl1);
jp1.add(jl2);
jp1.add(jl3);
jp1.add(jl4);
jp1.add(jl5);
jp1.add(jl6);
jp1.add(jl7);
jp2.add(jf1);
jp2.add(jf2);
jp2.add(jf3);
jp2.add(jf4);
jp2.add(jf5);
jp2.add(jf6);
jp2.add(jf7);
this.add(jp1, BorderLayout.WEST);
this.add(jp2, BorderLayout.CENTER);
this.add(jp3, BorderLayout.SOUTH);
this.setLocation(600, 350);
this.setSize(300,200);
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getSource() == jb1){
Connection ct = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
try{
//1.加载驱动
Class.forName("com.mysql.cj.jdbc.Driver");
System.out.println("加载成功");
//2.连接数据库
//定义几个常量
String url = "jdbc:mysql://localhost:3306/student";
String user = "root";
String passwd = "666666";
ct = DriverManager.getConnection(url,user,passwd);
//与编译语句对象
String strsql = "update stu set stuName = '"+jf2.getText()+"',stuSex = '"+jf3.getText()+"',stuAge = '"+jf4.getText()+"',stuJG='"+jf5.getText()+"',stuLX='"+jf6.getText()+"',stuBJ='"+jf7.getText()+"' where stuId = '"+jf1.getText()+"'";
pstmt = ct.prepareStatement(strsql);
pstmt.executeUpdate();
JOptionPane.showMessageDialog(null, "修改成功", "修改情况",JOptionPane.PLAIN_MESSAGE);
this.dispose();//关闭学生对话框
}catch(Exception arg1){
arg1.printStackTrace();
}finally{
try{
if(rs!=null){
rs.close();
rs = null;
}
if(pstmt != null){
pstmt.close();
pstmt = null;
}
if(ct != null){
ct.close();
ct = null;
}
}catch(Exception arg2){
arg2.printStackTrace();
}
}
}else{
this.dispose();//关闭学生对话框
}
}
}