JavaFX+Mysql 实现学生信息管理系统

比眉伴天荒 2024-04-01 13:40 136阅读 0赞

## 前言 ##

基于JavaFx和Mysql实现一个学生信息管理系统。  
同时实现 对学生信息的 增删改查 功能，以及实现用户注册账号和登录账号的功能。  
完整代码在文章末尾。

## 页面展示 （部分） ##

### 1.登录页面![在这里插入图片描述][9e47fec3d5924e699f39f8eccf5cb726.png] ###

### 2.管理员登录页面 ###

![在这里插入图片描述][ff741791b9ec47e0bb3aa06a1a309a3a.png]

### 3.注册页面 ###

![在这里插入图片描述][000de558f5d043f1aa11c1c0cbe4cdc7.png]

### 4.主页面 ###

![在这里插入图片描述][6efe4ac77f9c446686260112606750cc.png]  
![在这里插入图片描述][f77e9e17694f461884a034494b981bb5.png]

### 5.数据库建表 ###

![在这里插入图片描述][96193c3532e141be9f5ff333a1e38489.png]  
![在这里插入图片描述][2a757ef721674fca8910737c9daaea95.png]  
![在这里插入图片描述][42e28a8589e742cba0b05e9b44bc863d.png]

## 一、连接数据库 ##

需要插入一个 jar包，然后通过JDBC建立连接。  
（jar包放在文章末尾）  
![在这里插入图片描述][97771df683c747a39d0f16688be55c08.png]

// 先建立连接
    String URL="jdbc:mysql://127.0.0.1:3306/数据库名称?useUnicode=true&characterEncoding=UTF-8&userSSL=false&serverTimezone=GMT%2B8";//jdbc:mysql//服务器地址/数据库名
    String USER=" ";//用户名
    String PASSWORD=" ";//密码
    Connection con=DriverManager.getConnection(URL, USER, PASSWORD); 
    // 接着执行 sql语句
    PreparedStatement pst =con.prepareStatement(sql) ;
    // 查看 sql语句的执行结果
    ResultSet rs = pstexecuteQuery();

## 二、实现主要功能 ##

### 1.增加功能 ###

实现对学生信息的添加。

import javafx.event.ActionEvent;
    import javafx.event.EventHandler;
    import javafx.scene.Scene;
    import javafx.scene.control.Button;
    import javafx.scene.control.TableView;
    import javafx.scene.control.TextField;
    import javafx.scene.layout.AnchorPane;
    import javafx.scene.text.Font;
    import javafx.scene.text.Text;
    import javafx.stage.Modality;
    import javafx.stage.Stage;
    import java.awt.*;
    import java.awt.print.Book;
    import java.sql.*;
    public class add_information {
        private static final String URL="jdbc:mysql://127.0.0.1:3306/数据库名?useUnicode=true&characterEncoding=UTF-8&userSSL=false&serverTimezone=GMT%2B8";//jdbc:mysql//服务器地址/数据库名
        private static final String USER="  ";//用户名
        private static final String PASSWORD="  ";//密码
        public add_information(TableView table, Stage stage) {
            Stage stage1 = new Stage();
            stage1.setTitle("增加信息");
            stage1.setWidth(400);
            stage1.setHeight(500);
            stage1.setX(740);
            stage1.setY(180);
            stage1.setResizable(false);
            stage1.initOwner(stage);
            stage1.initModality(Modality.WINDOW_MODAL);
            stage1.show();  //  让窗口显示出来
            AnchorPane an = new AnchorPane();
            Scene scene = new Scene(an);
            stage1.setScene(scene); // 设置场景
            Text t1 = new Text( 30,70,"学号");
            t1.setFont(new Font(30));
            Text t2 = new Text( 30,120,"班级");
            t2.setFont(new Font(30));
            Text t3 = new Text( 30,170,"姓名");
            t3.setFont(new Font(30));
            Text t4 = new Text( 30,220,"性别");
            t4.setFont(new Font(30));
            Text t5 = new Text( 10,270,"出生日期");
            t5.setFont(new Font(20));
            Text t6 = new Text( 30,320,"专业");
            t6.setFont(new Font(30));
            TextField a1 = new TextField();
            AnchorPane.setLeftAnchor(a1,110.0);
            AnchorPane.setTopAnchor(a1,48.0);
            TextField a2 = new TextField();
            AnchorPane.setLeftAnchor(a2,110.0);
            AnchorPane.setTopAnchor(a2,98.0);
            TextField a3 = new TextField();
            AnchorPane.setLeftAnchor(a3,110.0);
            AnchorPane.setTopAnchor(a3,148.0);
            TextField a4 = new TextField();
            AnchorPane.setLeftAnchor(a4,110.0);
            AnchorPane.setTopAnchor(a4,198.0);
            TextField a5 = new TextField();
            AnchorPane.setLeftAnchor(a5,110.0);
            AnchorPane.setTopAnchor(a5,248.0);
            TextField a6 = new TextField();
            AnchorPane.setLeftAnchor(a6,110.0);
            AnchorPane.setTopAnchor(a6,298.0);
            Button b1 = new Button("确认");
            AnchorPane.setTopAnchor(b1,358.0);
            AnchorPane.setLeftAnchor(b1,150.0);
            TextField a7 = new TextField();
            a7.setText("0");
            b1.setStyle(
                    "-fx-font-size: 32px"
            );
            an.getChildren().addAll(t1,t2,t3,t4,t5,t6,a1,a2,a3,a4,a5,a6,b1);
            // 这个是 点击 增加信息按钮
            b1.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent event) {
                    Connection con=null;
    
                        if (a1.getText().isEmpty()||a2.getText().isEmpty()||a3.getText().isEmpty()||a4.getText().isEmpty()||a5.getText().isEmpty()||a6.getText().isEmpty()){
                            zhuceshibai shibai = new zhuceshibai(stage1,"请输入完整的信息");
                        }else {
    
                            try {
                                con = DriverManager.getConnection(URL, USER, PASSWORD);
                            } catch (SQLException throwables) {
                                throwables.printStackTrace();
                            }
                            String sqll= "select ID from information where ID=?";
                            PreparedStatement pst11 = null;
                            try {
                                pst11 = con.prepareStatement(sqll);
                                pst11.setString(1,a1.getText());
                            } catch (SQLException throwables) {
                                throwables.printStackTrace();
                            }
                            ResultSet rss = null;
                            try {
                                rss = pst11.executeQuery();
                            } catch (SQLException throwables) {
                                throwables.printStackTrace();
                            }
                            try {
                                if (rss.next()) {
                                    zhuceshibai shibai6 = new zhuceshibai(stage1,"该学号已经添加过信息");
                                }else {
    
                                    String s="0";    // 添加一个学生信息的同时，默认该学生的所有成绩为 0
                                   Connection connection = DriverManager.getConnection(URL,USER,PASSWORD);
                                 PreparedStatement preparedStatement = connection.prepareStatement("insert into score (ID,China,Math,English) values(?,?,?,?)");
                                 preparedStatement.setString(1,a1.getText());
                                 preparedStatement.setString(2,"0");
                                 preparedStatement.setString(3,"0");
                                 preparedStatement.setString(4,"0");
                                    preparedStatement.executeUpdate();
                                    stage1.close();
                                    stage.close();
                                    PreparedStatement pst = null;
                                    try {
                                        //1.加载驱动程序
                                        //此语句固定，使用MySQL数据库无需更改，在JSP中可不加异常处理
                                        try {
                                            Class.forName("com.mysql.cj.jdbc.Driver");
                                        } catch (ClassNotFoundException e) {
                                            e.printStackTrace();
                                        }
                                        con = DriverManager.getConnection(URL, USER, PASSWORD);
                                        Statement sql = con.createStatement();
                                        try {
                                            con = DriverManager.getConnection(URL, USER, PASSWORD);
                                            pst = con.prepareStatement("insert into information (ID,grade,name,sex,birth,major) values(?,?,?,?,?,?) ");
                                            pst.setString(1, a1.getText());
                                            pst.setString(2, a2.getText());
                                            pst.setString(3, a3.getText());
                                            pst.setString(4, a4.getText());
                                            pst.setString(5, a5.getText());
                                            pst.setString(6, a6.getText());
                                            pst.execute();
                                            Mywindow m1 = new Mywindow();  // 刷新页面
                                        } catch (Exception e) {
                                            e.printStackTrace();
                                        }
                                    } catch (SQLException E) {
                                        System.out.println("SQL异常！！！！");
                                    }
                                }
                            } catch (SQLException throwables) {
                                throwables.printStackTrace();
                            }
                        }
                }
            });
        }
    }

![在这里插入图片描述][f5bf537859684ad8ae2ccfd5d3b467a3.png]

### 2.删除功能 ###

通过输入学号，进该学生进行搜索，然后进行删除

![在这里插入图片描述][fda1eab79430404d87188ecff50cac51.png]

### 3.修改功能 ###

先通过输入学号然后对该生进行搜索，如果搜索到了，弹出该学生默认信息，然后进行修改。

import javafx.event.ActionEvent;
    import javafx.event.EventHandler;
    import javafx.scene.Scene;
    import javafx.scene.control.Button;
    import javafx.scene.control.TableView;
    import javafx.scene.control.TextField;
    import javafx.scene.layout.AnchorPane;
    import javafx.scene.text.Font;
    import javafx.scene.text.Text;
    import javafx.stage.Modality;
    import javafx.stage.Stage;
    import java.sql.*;
    public class mod2_information {
        private final Stage stage1 = new Stage();
        private static final String URL="jdbc:mysql://127.0.0.1:3306/unite1?useUnicode=true&characterEncoding=UTF-8&userSSL=false&serverTimezone=GMT%2B8";//jdbc:mysql//服务器地址/数据库名
        private static final String USER="root";//用户名
        private static final String PASSWORD="zhubao.2003";//密码
        Connection con = null;
        PreparedStatement pst = null;
        ResultSet rs =null ;
        public mod2_information(TableView table, Stage stage,String s) {
            stage1.initOwner(stage);
            stage1.initModality(Modality.WINDOW_MODAL);
            String s1="";
            String s2="";
            String s3="";
            String s4="";
            String s5="";
            String s6="";
            String sss="select * from information where ID=?";
            try {
                con=DriverManager.getConnection(URL,USER,PASSWORD);
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
            try {
                pst=con.prepareStatement(sss);
                pst.setString(1,s);
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
            try {
                rs=pst.executeQuery();
            } catch (SQLException throwables) {
                throwables.printStackTrace();
            }
            //     从数据库中获取该学号的所有内容，并且展示出来设置成默认值
            while (true){
                try {
                    if (!rs.next()) break;
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s1=rs.getString(1);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s2=rs.getString(2);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s3=rs.getString(3);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s4=rs.getString(4);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s5=rs.getString(5);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
                try {
                    s6=rs.getString(6);
                } catch (SQLException throwables) {
                    throwables.printStackTrace();
                }
            }
            stage1.show();  //  让窗口显示出来
            stage1.setTitle("修改信息");
            stage1.setWidth(400);
            stage1.setHeight(480);
            stage1.setX(740);
            stage1.setY(180);
            stage1.setResizable(false);
    //        stage1.initOwner(stage);
    //        stage1.initModality(Modality.WINDOW_MODAL);
            AnchorPane an = new AnchorPane();
            Scene scene = new Scene(an); // bor 是 方位布局
            stage1.setScene(scene); // 设置场景
            Text t1 = new Text( 30,70,"学号");
            t1.setFont(new Font(30));
            Text t2 = new Text( 30,120,"班级");
            t2.setFont(new Font(30));
            Text t3 = new Text( 30,170,"姓名");
            t3.setFont(new Font(30));
            Text t4 = new Text( 30,220,"性别");
            t4.setFont(new Font(30));
            Text t5 = new Text( 10,270,"出生日期");
            t5.setFont(new Font(20));
            Text t6 = new Text( 30,320,"专业");
            t6.setFont(new Font(30));
            TextField a1 = new TextField();
            AnchorPane.setLeftAnchor(a1,110.0);
            AnchorPane.setTopAnchor(a1,48.0);
            TextField a2 = new TextField();
            AnchorPane.setLeftAnchor(a2,110.0);
            AnchorPane.setTopAnchor(a2,98.0);
            TextField a3 = new TextField();
            AnchorPane.setLeftAnchor(a3,110.0);
            AnchorPane.setTopAnchor(a3,148.0);
            TextField a4 = new TextField();
            AnchorPane.setLeftAnchor(a4,110.0);
            AnchorPane.setTopAnchor(a4,198.0);
            TextField a5 = new TextField();
            AnchorPane.setLeftAnchor(a5,110.0);
            AnchorPane.setTopAnchor(a5,248.0);
            TextField a6 = new TextField();
            AnchorPane.setLeftAnchor(a6,110.0);
            AnchorPane.setTopAnchor(a6,298.0);
            // 设置默认值
            a1.setText(s1);
            a2.setText(s2);
            a3.setText(s3);
            a4.setText(s4);
            a5.setText(s5);
            a6.setText(s6);
            Button b1 = new Button("确认");
            AnchorPane.setTopAnchor(b1,358.0);
            AnchorPane.setLeftAnchor(b1,130.0);
            b1.setStyle(
                    "-fx-font-size: 32px"
            );
            an.getChildren().addAll(t1,t2,t3,t4,t5,t6,a1,a2,a3,a4,a5,a6,b1);
            // 这个是 点击 增加信息按钮
            b1.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent event) {
                    // 添加学生信息
                    stage.close();
                    PreparedStatement pst = null;
                    try {
                        //1.加载驱动程序
                        //此语句固定，使用MySQL数据库无需更改，在JSP中可不加异常处理
                        try {
                            Class.forName("com.mysql.cj.jdbc.Driver");
                        } catch (ClassNotFoundException e) {
                            e.printStackTrace();
                        }
                        //2.获取数据库的连接
                        Connection con = DriverManager.getConnection(URL, USER, PASSWORD);
                        //3.通过数据库的连接操作数据库，实现修改数据
                        Statement sql = con.createStatement();
                        try {
                            con = DriverManager.getConnection(URL, USER, PASSWORD);
                            pst = con.prepareStatement("update information set ID=? ,grade=?,name=?,sex=?,birth=?,major=? where ID=?");
                            pst.setString(1, a1.getText());
                            pst.setString(2, a2.getText());
                            pst.setString(3, a3.getText());
                            pst.setString(4, a4.getText());
                            pst.setString(5, a5.getText());
                            pst.setString(6, a6.getText());
                            pst.setString(7,s);
                            pst.execute();
                            Mywindow m1 = new Mywindow();  // 刷新页面
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    } catch (SQLException E) {
                        System.out.println("SQL异常！！！！");
                    }
                    stage1.close();
                }
            });
        }
    }

![在这里插入图片描述][17c903aff99b400ea7899a927897ba24.png]

### 4.查询功能 ###

查询功能设计的为 模糊查询，即 输入 提示框内的任意一条信息就可以对其进行搜索。

import javafx.event.ActionEvent;
    import javafx.event.EventHandler;
    import javafx.scene.Scene;
    import javafx.scene.control.Button;
    import javafx.scene.control.TableView;
    import javafx.scene.control.TextField;
    import javafx.scene.layout.AnchorPane;
    import javafx.scene.text.Font;
    import javafx.scene.text.Text;
    import javafx.stage.Modality;
    import javafx.stage.Stage;
    
    import java.sql.*;
    
    public class find_information {
        private final Stage stage2 = new Stage();
        String url = "jdbc:mysql://127.0.0.1:3306/数据库名?useUnicode=true&characterEncoding=UTF-8&userSSL=false&serverTimezone=GMT%2B8";
        String user = " ";// 用户名
        String pwdd = " ";  // 密码
        String jdbc = "com.mysql.cj.jdbc.Driver";
        ResultSet rst = null;
        Connection cont = null;
        Statement ppst = null;
        public find_information(TableView table, Stage stage) {
            stage2.initOwner(stage);
            stage2.initModality(Modality.WINDOW_MODAL);
            stage2.show();  //  让窗口显示出来
            stage2.setTitle("查询信息");
            stage2.setWidth(400);
            stage2.setHeight(500);
            stage2.setX(740);
            stage2.setY(180);
            stage2.setResizable(false);
            AnchorPane an = new AnchorPane();
            Scene scene = new Scene(an); // bor 是 方位布局
            stage2.setScene(scene); // 设置场景
            Text t1 = new Text( 30,70,"学号");
            t1.setFont(new Font(30));
            Text t2 = new Text( 30,120,"班级");
            t2.setFont(new Font(30));
            Text t3 = new Text( 30,170,"姓名");
            t3.setFont(new Font(30));
            Text t4 = new Text( 30,220,"性别");
            t4.setFont(new Font(30));
            Text t5 = new Text( 10,270,"出生日期");
            t5.setFont(new Font(20));
            Text t6 = new Text( 30,320,"专业");
            t6.setFont(new Font(30));
    
            TextField a1 = new TextField();
            AnchorPane.setLeftAnchor(a1,110.0);
            AnchorPane.setTopAnchor(a1,48.0);
            TextField a2 = new TextField();
            AnchorPane.setLeftAnchor(a2,110.0);
            AnchorPane.setTopAnchor(a2,98.0);
            TextField a3 = new TextField();
            AnchorPane.setLeftAnchor(a3,110.0);
            AnchorPane.setTopAnchor(a3,148.0);
            TextField a4 = new TextField();
            AnchorPane.setLeftAnchor(a4,110.0);
            AnchorPane.setTopAnchor(a4,198.0);
            TextField a5 = new TextField();
            AnchorPane.setLeftAnchor(a5,110.0);
            AnchorPane.setTopAnchor(a5,248.0);
            TextField a6 = new TextField();
            AnchorPane.setLeftAnchor(a6,110.0);
            AnchorPane.setTopAnchor(a6,298.0);
            Button b1 = new Button("查找");
            b1.setStyle(
                    "-fx-font-size: 32px"
            );
            AnchorPane.setTopAnchor(b1,358.0);
            AnchorPane.setLeftAnchor(b1,150.0);
            an.getChildren().addAll(t1,t2,t3,t4,t5,t6,a1,a2,a3,a4,a5,a6,b1);
            b1.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent event) {
                    stage2.close();
                    int ceshi=0;
                    String sql3 = "select i.ID,i.grade,i.name,i.sex,i.birth,i.major from information i where ";
    
                    if (!a1.getText().isEmpty()){
                        String s1= "(i.id like '"+a1.getText()+"%'||i.id like '%"+a1.getText()+"'|| i.id like '%"+a1.getText()+"%'|| i.id='"+a1.getText()+"')";
                        ceshi=1;
                        sql3=sql3+s1;
                    }
                    if (!a2.getText().isEmpty()) {
                        String s2= "(i.grade like '"+a2.getText()+"%'||i.grade like '%"+a2.getText()+"'|| i.grade like '%"+a2.getText()+"%'|| i.grade='"+a2.getText()+"')";
                        if (ceshi>0) {
                            sql3+="AND"+s2;
                        }else {
                            sql3+=s2;
                        }
                        ceshi=1;
                    }
                    if (!a3.getText().isEmpty()) {
                        String s3= "(i.name like '"+a3.getText()+"%'||i.name like '%"+a3.getText()+"'|| i.name like '%"+a3.getText()+"%'|| i.name='"+a3.getText()+"')";
                        if (ceshi>0) {
                            sql3+="AND"+s3;
                        }else {
                            sql3+=s3;
                        }
                        ceshi=1;
                    }
                    if (!a4.getText().isEmpty()) {
                        String s4= "(i.sex like '"+a4.getText()+"%'||i.sex like '%"+a4.getText()+"'|| i.sex like '%"+a4.getText()+"%'|| i.sex='"+a4.getText()+"')";
                        if (ceshi>0) {
                            sql3+="AND"+s4;
                        }else {
                            sql3+=s4;
                        }
                        ceshi=1;
                    }
                    if (!a5.getText().isEmpty()) {
                        String s5= "(i.birth like '"+a5.getText()+"%'||i.birth like '%"+a5.getText()+"'|| i.birth like '%"+a5.getText()+"%'|| i.birth='"+a5.getText()+"')";
                        if (ceshi>0) {
                            sql3+="AND"+s5;
                        }else {
                            sql3+=s5;
                        }
                        ceshi=1;
                    }
                    if (!a6.getText().isEmpty()) {
                        String s6= "(i.major like '"+a6.getText()+"%'||i.major like '%"+a6.getText()+"'|| i.major like '%"+a6.getText()+"%'|| i.major='"+a6.getText()+"')";
                        if (ceshi>0) {
                            sql3+="AND"+s6;
                        }else {
                            sql3+=s6;
                        }
                        ceshi=1;
                    }
                    if (ceshi>0) {  // 输入的有关键信息
                        Connection connection= null;
                        try {
                            connection = DriverManager.getConnection(url,user,pwd);
                        } catch (SQLException throwables) {
                            throwables.printStackTrace();
                        }
                        Statement statement = null;
                        try {
                            statement = connection.createStatement();
                        } catch (SQLException throwables) {
                            throwables.printStackTrace();
                        }
                        ResultSet resultSet = null;
                        try {
                            resultSet = statement.executeQuery(sql3);
                        } catch (SQLException throwables) {
                            throwables.printStackTrace();
                        }
                        try {
                            if (!resultSet.next()){
                                zhuceshibai zhuceshibai1 = new zhuceshibai(stage2,"找不到该信息！");
                            }else {
                                leader_log.mywindow.date(table,sql3);
                            }
                        } catch (SQLException throwables) {
                            throwables.printStackTrace();
                        } catch (ClassNotFoundException e) {
                            e.printStackTrace();
                        }
                    }else {
                        if (a1.getText().isEmpty()&&a2.getText().isEmpty()&&a3.getText().isEmpty()&&a4.getText().isEmpty()&&a5.getText().isEmpty()&&a6.getText().isEmpty()){
                            zhuceshibai zhuceshibai = new zhuceshibai(stage2,"请输入关键的信息");
                        }else{
                            try {
                                leader_log.mywindow.date(table,sql3);
                            } catch (ClassNotFoundException e) {
                                e.printStackTrace();
                            }
                            stage2.close();
                        }
                    }
                }
            });
        }
        }

![在这里插入图片描述][e7accec04e874ba58e7c6072338d436a.png]

## 三、完整代码展示 ##

由于代码过长，所以本文展示部分的代码，完整代码在下方的百度网盘里，有需要的可以自行提取  
链接：https://pan.baidu.com/s/11jUvvYmMQnkTtlAV9f8dFw?pwd=ojbk  
提取码：ojbk

## 四、 总结 ##

第一次学习Mysql，便尝试做了一个学生信息管理系统，避免不了出现个别的错误，欢迎大家在评论区指出，咱们一起讨论。

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