基于Java+MySQL的学生成绩管理系统

目 录
第1章 绪 论 2
1.1 课题研究背景 2
1.2 课题研究意义 2
1.3 国内外的发展状况 2
第2章 开发环境 3
2.1 Java技术简介 3
2.2 Mysql简介 3
2.3 JDBC简介 3
2.4其他技术简介 3
第3章 系统需求分析 4
第4章 系统概要设计 5
第5章 系统详细设计及实现 6
5.1 详细设计思想 6
5.2 登录模块设计与实现 6
5.2.1界面设计 6
5.2.2类图设计 6
5.3 学生/教师/学生管理员/教师管理员模块设计与实现 7
5.3.1 界面设计 7
5.3.2 类图设计 7
5.4 系统测试 7
5.4.1 登录模块测试 7
5.4.2 功能模块测试 7
第6章 总 结 8
第3章 系统需求分析
目前由于学生的考试科目越来越多，管理变得越来越复杂，我们便需要一个学生成绩管理系统来系统地整理各科成绩。本次课设所实现的学生成绩管理系统所需功能为教师端和学生端登录后的操作界面，登陆界面具有注册功能，教师端具有向数据库插入数据，删除数据，修改数据，查询数据的功能，学生端只具有查询数据的功能，同时两端都具有多功能操作面板，可依据学号查询学生奖学金情况，学分绩点以及重要的挂科预警。

数据库选择MySQL进行数据的存储，数据库建表采用（姓名，学号，xxx成绩，xxx成绩……）的格式，此次课程设计预先建表studentinfo1。而对于教师信息采用（工号，姓名，性别，年龄，专业），同样的预先建表teacherinfo, 对于教师课程班级安排采用（工号，课程，班级）建表corinfo，对于学生基本信息采用（学号，姓名，性别，年龄，专业）建表stuinfo。通过inteallj idea连接MySQL，使用Java语言对表进行查删改插的操作。本次课程设计为修改操作操作添加修改面板，老师可通过学号/工号对所该项目直接修改，同时修改后的结果同步至数据库。查删改操作都是依据学号对数据进行操作。

界面使用Java语言进行编写，将查删改插功能作为事件有按钮监听，同时将多功能面板作为菜单栏的菜单项加入窗口。进入多功能面板可依据按钮直接操作，可进行奖学金，学分绩点查询以及挂科预警。本文转载自http://www.biyezuopin.vip/onews.asp?id=15265如果需要回到主界面，使用者可通过菜单栏的回到主界面操作回到主界面。

通过分析所有模块，可将功能需求归结为以下几点：

1.登陆界面的编写
2.注册功能的编写
3.教师端界面的编写
4.学生端界面的编写
5.多功能面板界面的编写
6.修改面板的编写
7.教师端查询，删除，存储功能的编写
8.学生端查询功能的编写
9.修改面板修改功能的编写
10.多功能操作面板功能的编写
11.Java对数据库操作的编写
12.教师端管理员界面及功能编写
13.学生端管理员界面及功能编写

import java.sql.*;
import javax.swing.*;
import javax.swing.tree.DefaultTreeCellEditor;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import  java.util.ArrayList;
import java.util.List;
import javax.xml.stream.events.StartElement;

import static javax.swing.JOptionPane.ERROR_MESSAGE;


class dbopra {

    public String[] select(int aa) throws Exception {
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc="jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn=DriverManager.getConnection(jdbc, "root", "root");
        Statement state=conn.createStatement();
        String sql="select * from studentinfo1";
        ResultSet rs=state.executeQuery(sql);
        String[] arrey  = new String[5];
        //int i = 0;
        while(rs.next()){
            if (Integer.parseInt(rs.getString(2) )== aa)
            {
                arrey[0] = rs.getString(1);
                arrey[1] = rs.getString(2);
                arrey[2] = rs.getString(3);
                arrey[3] = rs.getString(4);
                arrey[4] = rs.getString(5);
                System.out.print(rs.getString(1)+" "+rs.getString(3)+" "+rs.getString(4)+" "+rs.getString(5));
                break;
            }
        }
        conn.close();
        /*String[] arrey  = new String[]{};
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        Statement state = conn.createStatement();
        String sql = "select * from studentinfo1 where no = ?";
        ps = conn.prepareStatement(sql);//sql语句
        ps.setInt(1, aa);
        int insertCount = ps.executeUpdate();
        ResultSet rs = state.executeQuery(sql);
        while (rs.next()) {
            System.out.print(rs.getString(1));
        }
        int i = 0;
        while (rs.next()) {
                 String a = rs.getString(i+1);
                 System.out.print(a);
                 arrey[i] = a;
                 i++;
        }*/
        return  arrey;
    }

    public void insert(String a,int b,int c,int d,int e ) throws Exception{
        //Connection conn = null;
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "INSERT INTO studentinfo1 (name,no,python,java,db) VALUES (?,?,?,?,? )";
        ps = conn.prepareStatement(sql);
        ps.setString(1, a);
        ps.setInt(2, b);
        ps.setInt(3, c);
        ps.setInt(4, d);
        ps.setInt(5, e);
        int insertCount = ps.executeUpdate();


        /*Class.forName("com.mysql.jdbc.Driver");
        String jdbc="jdbc:mysql://127.0.0.1:3306/test?characterEncoding=GBK";
        Connection conn=DriverManager.getConnection(jdbc, "root", "root");
        Statement state=conn.createStatement();
        String name = a;
        int no = b;
        int python = c;
        int java = c;
        int db = c;*/
        //String sql= a;
        //"insert into stduentinfo1 values(?,?,?,?,?)";
        //state.executeUpdate(sql);
        /*PreparedStatement ps = conn.prepareStatement(sql);
        ps.setString(1,a);
        ps.setInt(2,b);
        ps.setInt(3,c);
        ps.setInt(4,d);
        ps.setInt(5,e);
        ps.executeUpdate();
        conn.close();*/
    }

    public void delete(int b) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "delete from studentinfo1 where no = ?";
        ps = conn.prepareStatement(sql);
        ps.setInt(1,b);
        int insertCount = ps.executeUpdate();
        conn.close();

    }


    public void updatename(String a,String b,int c) throws  Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("姓名"))
        {
            String sql = "update studentinfo1 set name = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();
    }


    public void update(String a,int b,int c) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("python"))
        {
            String sql = "update studentinfo1 set python = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        /*else if (a.equals("姓名"))
        {
            String sql = "update studentinfo1 set name = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }*/
        else if(a.equals("java"))
        {
            String sql = "update studentinfo1 set java = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if(a.equals("db"))
        {
            String sql = "update studentinfo1 set db = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();


    }


    public void teainsert(int a,String b,String c,int d,String e ) throws Exception {
        //Connection conn = null;
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "INSERT INTO teacherinfo (id,name,sex,age,cor) VALUES (?,?,?,?,? )";
        ps = conn.prepareStatement(sql);
        ps.setInt(1, a);
        ps.setString(2, b);
        ps.setString(3, c);
        ps.setInt(4, d);
        ps.setString(5, e);
        int insertCount = ps.executeUpdate();
    }

    public void teadelete(int b) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "delete from teacherinfo where id = ?";
        ps = conn.prepareStatement(sql);
        ps.setInt(1,b);
        int insertCount = ps.executeUpdate();
        conn.close();

    }


    public void teacherupdate(String a,String b,int c) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("性别"))
        {
            String sql = "update teacherinfo set sex = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if (a.equals("姓名"))
        {
            String sql = "update studentinfo1 set name = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if(a.equals("课程"))
        {
            String sql = "update teacherinfo1 set cor = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();


    }


    public void teaupdateage(String a,int b,int c)throws  Exception {
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("年龄")) {
            String sql = "update teacherinfo1 set age = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();

    }


    public void stuupdateage(String a,int b,int c)throws  Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("年龄"))
        {
            String sql = "update stuinfo set age = ? where no = ? ";
            ps = conn.prepareStatement(sql);
            ps.setInt(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();
    }


    public void stuinsert(int a,String b,String c,int d,String e ) throws Exception {
        //Connection conn = null;
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "INSERT INTO stuinfo (id,name,sex,age,sdept) VALUES (?,?,?,?,? )";
        ps = conn.prepareStatement(sql);
        ps.setInt(1, a);
        ps.setString(2, b);
        ps.setString(3, c);
        ps.setInt(4, d);
        ps.setString(5, e);
        int insertCount = ps.executeUpdate();
    }

    public void studelete(int b) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "delete from stuinfo where id = ?";
        ps = conn.prepareStatement(sql);
        ps.setInt(1,b);
        int insertCount = ps.executeUpdate();
        conn.close();

    }


    public void studentupdate(String a,String b,int c) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("性别"))
        {
            String sql = "update stuinfo set sex = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if (a.equals("姓名"))
        {
            String sql = "update stuinfo set name = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if(a.equals("专业"))
        {
            String sql = "update stuinfo set sdept = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        conn.close();


    }

    public void corupdate(String a,String b,int c) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        if (a.equals("课程"))
        {
            String sql = "update corinfo set cor = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }
        else if (a.equals("班级"))
        {
            String sql = "update corinfo set class = ? where id = ? ";
            ps = conn.prepareStatement(sql);
            ps.setString(1, b);
            ps.setInt(2, c);
            int insertCount = ps.executeUpdate();
        }

        conn.close();


    }


    public void corinsert(int a,String b,String c) throws Exception {
        //Connection conn = null;
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "INSERT INTO corinfo (id,cor,class) VALUES (?,?,? )";
        ps = conn.prepareStatement(sql);
        ps.setInt(1, a);
        ps.setString(2, b);
        ps.setString(3, c);
        int insertCount = ps.executeUpdate();
    }


    public void cordelete(int b) throws Exception{
        PreparedStatement ps = null;
        Class.forName("com.mysql.jdbc.Driver");
        String jdbc = "jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8";
        Connection conn = DriverManager.getConnection(jdbc, "root", "root");
        String sql = "delete from corinfo where id = ?";
        ps = conn.prepareStatement(sql);
        ps.setInt(1,b);
        int insertCount = ps.executeUpdate();
        conn.close();

    }

}


class menuoprat extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    public menuoprat()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("多功能面板");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);

        JButton b1 = new JButton("查询学分");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuoprat.this.t1.getText()));
                    double score = (Integer.parseInt(a[2]) * 4 +  Integer.parseInt(a[3]) * 2 + Integer.parseInt(a[4]) * 3)/9;
                    t2.setText(String.valueOf(score));
                }catch(Exception e1){}
            }
        });


        JButton b2 = new JButton("奖学金");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuoprat.this.t1.getText()));
                    double score = (Integer.parseInt(a[2]) * 4 +  Integer.parseInt(a[3]) * 2 + Integer.parseInt(a[4]) * 3)/9;
                    if (score > 80)
                    {
                        t2.setText("你获得一等奖学金");
                    }
                    else if (score > 75)
                    {
                        t2.setText("你获得二等奖学金");
                    }
                    else if (score > 70)
                    {
                        t2.setText("你获得三等奖学金");
                    }
                    else
                    {
                        t2.setText("你未获得奖学金");
                    }
                }catch(Exception e1){}
            }
        });


        JButton b3 = new JButton("挂科预警");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuoprat.this.t1.getText()));
                    if ((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的python成绩不合格");
                    }
                    else if((Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[2]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的java成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[2]) > 60))
                    {
                        t2.setText("你的数据库成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[2]) > 60))
                    {
                        t2.setText("你的数据库成绩和java成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) > 60))
                    {
                        t2.setText("你的数据库成绩和python成绩不合格");
                    }
                    else if((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的python成绩和java成绩不合格");
                    }
                    else if((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[4]) < 60))
                    {
                        t2.setText("你的成绩全部不合格");
                    }
                    else if((Integer.parseInt(a[2]) > 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的成绩全部合格");
                    }
                }catch(Exception e1){}

            }
        });

        JLabel l1 = new JLabel("学号");
        JLabel l2 = new JLabel("结果");

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("E://3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(100, 60, 30, 30);
        t1.setBounds(150, 60, 250, 30);
        l2.setBounds(100, 140, 30, 30);
        t2.setBounds(150, 140, 250, 30);
        b1.setBounds(100,220,100,30);
        b2.setBounds(220,220,100,30);
        b3.setBounds(340,220,100,30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                menuoprat.this.dispose();
                new teacher();
            }
        });

        setLayeredPane(pa);
        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }

}


class menuopra extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    public menuopra()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("多功能面板");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);

        JButton b1 = new JButton("查询学分");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuopra.this.t1.getText()));
                    double score = (Integer.parseInt(a[2]) * 4 +  Integer.parseInt(a[3]) * 2 + Integer.parseInt(a[4]) * 3)/9;
                    t2.setText(String.valueOf(score));
                }catch(Exception e1){}
            }
        });


        JButton b2 = new JButton("奖学金");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuopra.this.t1.getText()));
                    double score = (Integer.parseInt(a[2]) * 4 +  Integer.parseInt(a[3]) * 2 + Integer.parseInt(a[4]) * 3)/9;
                    if (score > 80)
                    {
                        t2.setText("你获得一等奖学金");
                    }
                    else if (score > 75)
                    {
                        t2.setText("你获得二等奖学金");
                    }
                    else if (score > 70)
                    {
                        t2.setText("你获得三等奖学金");
                    }
                    else
                        {
                            t2.setText("你未获得奖学金");
                        }
                }catch(Exception e1){}
            }
        });


        JButton b3 = new JButton("挂科预警");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    String[] a = tdp.select(Integer.parseInt(menuopra.this.t1.getText()));
                    if ((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的python成绩不合格");
                    }
                    else if((Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[2]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的java成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[2]) > 60))
                    {
                        t2.setText("你的数据库成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[2]) > 60))
                    {
                        t2.setText("你的数据库成绩和java成绩不合格");
                    }
                    else if((Integer.parseInt(a[4]) < 60)&&(Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) > 60))
                    {
                        t2.setText("你的数据库成绩和python成绩不合格");
                    }
                    else if((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的python成绩和java成绩不合格");
                    }
                    else if((Integer.parseInt(a[2]) < 60)&&(Integer.parseInt(a[3]) < 60)&&(Integer.parseInt(a[4]) < 60))
                    {
                        t2.setText("你的成绩全部不合格");
                    }
                    else if((Integer.parseInt(a[2]) > 60)&&(Integer.parseInt(a[3]) > 60)&&(Integer.parseInt(a[4]) > 60))
                    {
                        t2.setText("你的成绩全部合格");
                    }
                }catch(Exception e1){}

            }
        });

        JLabel l1 = new JLabel("学号");
        JLabel l2 = new JLabel("结果");

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("E://3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(100, 60, 30, 30);
        t1.setBounds(150, 60, 250, 30);
        l2.setBounds(100, 140, 30, 30);
        t2.setBounds(150, 140, 250, 30);
        b1.setBounds(100,220,100,30);
        b2.setBounds(220,220,100,30);
        b3.setBounds(340,220,100,30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                menuopra.this.dispose();
                new student();
            }
        });

        setLayeredPane(pa);
        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }

}

class adteacherup extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);

    public adteacherup()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("修改面板");
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(4,1));

        JLabel l1 = new JLabel("工号");
        JLabel l2 = new JLabel("项目");
        JLabel l3 = new JLabel("结果");
        JButton b1 =new JButton("确定");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    if ((adteacherup.this.t2.getText()).equals("年龄"))
                    {
                        tdp.teaupdateage(adteacherup.this.t2.getText(), Integer.parseInt(adteacherup.this.t3.getText()), Integer.parseInt(adteacherup.this.t1.getText()));
                    }
                    else {
                        tdp.teacherupdate(adteacherup.this.t2.getText(), adteacherup.this.t3.getText(), Integer.parseInt(adteacherup.this.t1.getText()));
                    }
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"修改成功","修改提示",JOptionPane.PLAIN_MESSAGE);
                    adteacherup.this.dispose();
                    new adteacher();
                }catch(Exception e1){}
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("E://3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(150, 60, 30, 30);
        t1.setBounds(200, 60, 200, 30);
        l2.setBounds(150, 140, 30, 30);
        t2.setBounds(200, 140, 200, 30);
        l3.setBounds(150, 220, 30, 30);
        t3.setBounds(200, 220, 200, 30);
        b1.setBounds(260, 300, 60, 30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);

        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);

        pa.add(b1, JLayeredPane.MODAL_LAYER);

        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                adteacherup.this.dispose();
                new adteacher();
            }
        });

        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }

}

class corup extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);

    public corup()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("修改面板");
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(4,1));

        JLabel l1 = new JLabel("工号");
        JLabel l2 = new JLabel("项目");
        JLabel l3 = new JLabel("结果");
        JButton b1 =new JButton("确定");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.corupdate(corup.this.t2.getText(),corup.this.t3.getText(),Integer.parseInt(corup.this.t1.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"修改成功","修改提示",JOptionPane.PLAIN_MESSAGE);
                    corup.this.dispose();
                    new course();
                }catch(Exception e1){}
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("E://3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(150, 60, 30, 30);
        t1.setBounds(200, 60, 200, 30);
        l2.setBounds(150, 140, 30, 30);
        t2.setBounds(200, 140, 200, 30);
        l3.setBounds(150, 220, 30, 30);
        t3.setBounds(200, 220, 200, 30);
        b1.setBounds(260, 300, 60, 30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);

        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);

        pa.add(b1, JLayeredPane.MODAL_LAYER);

        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                corup.this.dispose();
                new course();
            }
        });

        setLayeredPane(pa);
        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }

}


class teacherup extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);

    public teacherup()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("修改面板");
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(4,1));

        JLabel l1 = new JLabel("学号");
        JLabel l2 = new JLabel("项目");
        JLabel l3 = new JLabel("结果");
        JButton b1 =new JButton("确定");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    if ((teacherup.this.t2.getText()).equals("姓名"))
                    {
                        tdp.updatename(teacherup.this.t2.getText(), teacherup.this.t3.getText(), Integer.parseInt(teacherup.this.t1.getText()));
                    }
                    else {
                        tdp.update(teacherup.this.t2.getText(), Integer.parseInt(teacherup.this.t3.getText()), Integer.parseInt(teacherup.this.t1.getText()));
                    }
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"修改成功","修改提示",JOptionPane.PLAIN_MESSAGE);
                    teacherup.this.dispose();
                    new teacher();
                }catch(Exception e1){}
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(150, 60, 30, 30);
        t1.setBounds(200, 60, 200, 30);
        l2.setBounds(150, 140, 30, 30);
        t2.setBounds(200, 140, 200, 30);
        l3.setBounds(150, 220, 30, 30);
        t3.setBounds(200, 220, 200, 30);
        b1.setBounds(260, 300, 60, 30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);

        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);

        pa.add(b1, JLayeredPane.MODAL_LAYER);

        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem oper = new JMenuItem("多功能面板");
        oper.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                teacherup.this.dispose();
                new menuoprat();
            }
        });
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                teacherup.this.dispose();
                new menuoprat();
            }
        });


        bar.add(op);
        op.add(oper);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }

}
class adstudentup extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);

    public adstudentup()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("修改面板");
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(4,1));

        JLabel l1 = new JLabel("学号");
        JLabel l2 = new JLabel("项目");
        JLabel l3 = new JLabel("结果");
        JButton b1 =new JButton("确定");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    if ((adstudentup.this.t2.getText()).equals("年龄"))
                    {
                        tdp.stuupdateage(adstudentup.this.t2.getText(), Integer.parseInt(adstudentup.this.t3.getText()), Integer.parseInt(adstudentup.this.t1.getText()));
                    }
                    else
                    {
                        tdp.studentupdate(adstudentup.this.t2.getText(), adstudentup.this.t3.getText(), Integer.parseInt(adstudentup.this.t1.getText()));
                    }
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"修改成功","修改提示",JOptionPane.PLAIN_MESSAGE);
                    adstudentup.this.dispose();
                    new adstudent();
                }catch(Exception e1){}
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(150, 60, 30, 30);
        t1.setBounds(200, 60, 200, 30);
        l2.setBounds(150, 140, 30, 30);
        t2.setBounds(200, 140, 200, 30);
        l3.setBounds(150, 220, 30, 30);
        t3.setBounds(200, 220, 200, 30);
        b1.setBounds(260, 300, 60, 30);

        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);

        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);

        pa.add(b1, JLayeredPane.MODAL_LAYER);

        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                adstudentup.this.dispose();
                new adstudent();
            }
        });


        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }


}

class adstudent extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);
    final JTextField t4 = new JTextField(20);
    final JTextField t5 = new JTextField(20);
    public adstudent()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("学生端");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(6,1));

        JLabel l2 = new JLabel("姓名");
        //t1 = new JTextField(20);

        JLabel l1 = new JLabel("学号");
        //JTextField t2 = new JTextField(20);

        JLabel l3 = new JLabel("性别");

        JLabel l4 = new JLabel("年龄");

        JLabel l5 = new JLabel("专业");

        JButton b1 = new JButton("存储");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try{
                    dbopra tdp = new dbopra();
                    tdp.stuinsert(Integer.parseInt(adstudent.this.t1.getText()),adstudent.this.t2.getText(),adstudent.this.t3.getText(),Integer.parseInt(adstudent.this.t4.getText()),adstudent.this.t5.getText());
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"已存入数据库","存储提示",JOptionPane.PLAIN_MESSAGE);
                }catch(Exception e1){}
            }
        });

        JButton b3  = new JButton("修改");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                adstudent.this.dispose();
                new adstudentup();
                //dbopra tdp = new dbopra();
                //tdp.update();
            }
        });

        JButton b4 = new JButton("删除");
        b4.setOpaque(false);
        b4.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.studelete(Integer.parseInt(adstudent.this.t1.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d, "删除成功", "删除提示",JOptionPane.PLAIN_MESSAGE);
                }catch (Exception e1){}
            }
        });


        JLayeredPane pa = new JLayeredPane();
        JPanel p1 = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p1 = (JPanel)getContentPane();
        p1.add(jl);

        l1.setBounds(150, 40, 30, 30);
        t1.setBounds(200, 40, 220, 30);
        l2.setBounds(150, 90, 30, 30);
        t2.setBounds(200, 90, 220, 30);
        l3.setBounds(150, 140, 60, 30);
        t3.setBounds(200, 140, 220, 30);
        l4.setBounds(150, 190, 30, 30);
        t4.setBounds(200, 190, 220, 30);
        l5.setBounds(150, 240, 60, 30);
        t5.setBounds(200, 240, 220, 30);
        b1.setBounds(180, 290, 60, 30);
        b3.setBounds(280, 290, 60, 30);
        b4.setBounds(380, 290, 60, 30);


        pa.add(p1, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);
        pa.add(l4, JLayeredPane.MODAL_LAYER);
        pa.add(l5, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);
        pa.add(t4, JLayeredPane.MODAL_LAYER);
        pa.add(t5, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);
        pa.add(b4, JLayeredPane.MODAL_LAYER);


        setLayeredPane(pa);
        setVisible(true);


    }


}


class adteacher extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);
    final JTextField t4 = new JTextField(20);
    final JTextField t5 = new JTextField(20);
    public adteacher()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("教师端");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(6,1));

        JLabel l2 = new JLabel("姓名");
        //t1 = new JTextField(20);

        JLabel l1 = new JLabel("id");
        //JTextField t2 = new JTextField(20);

        JLabel l3 = new JLabel("性别");

        JLabel l4 = new JLabel("年龄");

        JLabel l5 = new JLabel("课程");

        JButton b1 = new JButton("存储");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try{
                    dbopra tdp = new dbopra();
                    //String a = "insert into studentinfo1 values "+"("+adteacher.this.t2.getText()+","+adteacher.this.t2.getText()+","+adteacher.this.t3.getText()+","+teacher.this.t4.getText()+","+teacher.this.t5.getText()+")";
                    //System.out.print(a);
                    tdp.teainsert(Integer.parseInt(adteacher.this.t1.getText()),adteacher.this.t2.getText(),adteacher.this.t3.getText(),Integer.parseInt(adteacher.this.t4.getText()),adteacher.this.t5.getText());
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"已存入数据库","存储提示",JOptionPane.PLAIN_MESSAGE);
                }catch(Exception e1){}
            }
        });

        JButton b3  = new JButton("修改");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                adteacher.this.dispose();
                new adteacherup();
                //dbopra tdp = new dbopra();
                //tdp.update();
            }
        });

        JButton b4 = new JButton("删除");
        b4.setOpaque(false);
        b4.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.teadelete(Integer.parseInt(adteacher.this.t1.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d, "删除成功", "删除提示",JOptionPane.PLAIN_MESSAGE);
                }catch (Exception e1){}
            }
        });


        JLayeredPane pa = new JLayeredPane();
        JPanel p1 = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p1 = (JPanel)getContentPane();
        p1.add(jl);

        l1.setBounds(150, 40, 30, 30);
        t1.setBounds(200, 40, 220, 30);
        l2.setBounds(150, 90, 30, 30);
        t2.setBounds(200, 90, 220, 30);
        l3.setBounds(150, 140, 60, 30);
        t3.setBounds(200, 140, 220, 30);
        l4.setBounds(150, 190, 30, 30);
        t4.setBounds(200, 190, 220, 30);
        l5.setBounds(150, 240, 60, 30);
        t5.setBounds(200, 240, 220, 30);
        b1.setBounds(180, 290, 60, 30);
        b3.setBounds(280, 290, 60, 30);
        b4.setBounds(380, 290, 60, 30);


        pa.add(p1, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);
        pa.add(l4, JLayeredPane.MODAL_LAYER);
        pa.add(l5, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);
        pa.add(t4, JLayeredPane.MODAL_LAYER);
        pa.add(t5, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);
        pa.add(b4, JLayeredPane.MODAL_LAYER);


        setLayeredPane(pa);
        setVisible(true);


    }

}


class course extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);

    public course()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("教师课程/班级管理面板");
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(4,1));

        JLabel l1 = new JLabel("工号");
        JLabel l2 = new JLabel("课程");
        JLabel l3 = new JLabel("班级");
        JButton b1 =new JButton("存储");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.corinsert(Integer.parseInt(course.this.t1.getText()),course.this.t2.getText(),course.this.t3.getText());
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"存储成功","存储提示",JOptionPane.PLAIN_MESSAGE);
                    course.this.dispose();
                    new teacher();
                }catch(Exception e1){}
            }
        });

        JButton b2 = new JButton("删除");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.cordelete(Integer.parseInt(course.this.t1.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100, 100);
                    JOptionPane.showMessageDialog(d, "删除成功", "删除提示", JOptionPane.PLAIN_MESSAGE);
                    course.this.dispose();
                    new teacher();
                }catch(Exception e1){}
            }
        });

        JButton b3 = new JButton("修改");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                course.this.dispose();
                new corup();
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p = new JPanel();
        ImageIcon image = new ImageIcon("E://3.jpg");
        JLabel jl = new JLabel(image);
        p = (JPanel)getContentPane();
        p.add(jl);

        l1.setBounds(150, 60, 30, 30);
        t1.setBounds(200, 60, 200, 30);
        l2.setBounds(150, 140, 30, 30);
        t2.setBounds(200, 140, 200, 30);
        l3.setBounds(150, 220, 30, 30);
        t3.setBounds(200, 220, 200, 30);
        b1.setBounds(200, 300, 60, 30);
        b2.setBounds(260,300,60,30);
        b3.setBounds(320,300,60,30);
        pa.add(p, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);

        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);

        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);

        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem returnmain = new JMenuItem("返回主界面");
        returnmain.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                course.this.dispose();
                new teacher();
            }
        });


        bar.add(op);
        op.add(returnmain);
        setJMenuBar(bar);
        setVisible(true);
    }
}


class teacher extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);
    final JTextField t4 = new JTextField(20);
    final JTextField t5 = new JTextField(20);
    public teacher()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("教师端");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(6,1));

        JLabel l2 = new JLabel("学号");
        //t1 = new JTextField(20);

        JLabel l1 = new JLabel("姓名");
        //JTextField t2 = new JTextField(20);

        JLabel l3 = new JLabel("python");

        JLabel l4 = new JLabel("java");

        JLabel l5 = new JLabel("数据库");

        JButton b1 = new JButton("存储");
        b1.setOpaque(false);
        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try{
                    dbopra tdp = new dbopra();
                    String a = "insert into studentinfo1 values "+"("+teacher.this.t1.getText()+","+teacher.this.t2.getText()+","+teacher.this.t3.getText()+","+teacher.this.t4.getText()+","+teacher.this.t5.getText()+")";
                    System.out.print(a);
                    tdp.insert(teacher.this.t1.getText(),Integer.parseInt(teacher.this.t2.getText()),Integer.parseInt(teacher.this.t3.getText()),Integer.parseInt(teacher.this.t4.getText()),Integer.parseInt(teacher.this.t5.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d,"已存入数据库","存储提示",JOptionPane.PLAIN_MESSAGE);
                }catch(Exception e1){}
            }
        });

        JButton b3  = new JButton("修改");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                teacher.this.dispose();
                new teacherup();
            }
        });

        JButton b4 = new JButton("删除");
        b4.setOpaque(false);
        b4.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    dbopra tdp = new dbopra();
                    tdp.delete(Integer.parseInt(teacher.this.t2.getText()));
                    JDialog d = new JDialog();
                    d.setSize(100,100);
                    JOptionPane.showMessageDialog(d, "删除成功", "删除提示",JOptionPane.PLAIN_MESSAGE);
                }catch (Exception e1){}
            }
        });

        JButton b2 = new JButton("查询");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    //System.out.print("ok");
                    dbopra tdp = new dbopra();
                    //System.out.print("1ok");
                    //tdp.select(Integer.parseInt(teacher.this.t2.getText()));
                    String []a  = tdp.select(Integer.parseInt(teacher.this.t2.getText()));
                    //System.out.print(a[0]);
                    //System.out.print(a[1]);
                    t1.setText(a[0]);
                    t2.setText(a[1]);
                    t3.setText(a[2]);
                    t4.setText(a[3]);
                    t5.setText(a[4]);
                } catch (Exception e1) {}
            }
        });

        JLayeredPane pa = new JLayeredPane();
        JPanel p1 = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p1 = (JPanel)getContentPane();
        p1.add(jl);

        l1.setBounds(150, 40, 30, 30);
        t1.setBounds(200, 40, 220, 30);
        l2.setBounds(150, 90, 30, 30);
        t2.setBounds(200, 90, 220, 30);
        l3.setBounds(150, 140, 60, 30);
        t3.setBounds(200, 140, 220, 30);
        l4.setBounds(150, 190, 30, 30);
        t4.setBounds(200, 190, 220, 30);
        l5.setBounds(150, 240, 60, 30);
        t5.setBounds(200, 240, 220, 30);
        b1.setBounds(180, 290, 60, 30);
        b2.setBounds(250, 290, 60, 30);
        b3.setBounds(320, 290, 60, 30);
        b4.setBounds(390, 290, 60, 30);


        pa.add(p1, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);
        pa.add(l4, JLayeredPane.MODAL_LAYER);
        pa.add(l5, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);
        pa.add(t4, JLayeredPane.MODAL_LAYER);
        pa.add(t5, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);
        pa.add(b3, JLayeredPane.MODAL_LAYER);
        pa.add(b4, JLayeredPane.MODAL_LAYER);


        setLayeredPane(pa);

        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem oper = new JMenuItem("多功能面板");
        oper.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                teacher.this.dispose();
                new menuoprat();
            }
        });

        JMenuItem cor = new JMenuItem("班级/课程管理");
        cor.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                teacher.this.dispose();
                new course();
            }
        });

        bar.add(op);
        op.add(oper);
        op.add(cor);
        setJMenuBar(bar);
        setVisible(true);


    }

}


class student extends JFrame
{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JTextField t3 = new JTextField(20);
    final JTextField t4 = new JTextField(20);
    final JTextField t5 = new JTextField(20);
    public student()
    {
        init();
    }
    public void init()
    {
        setSize(580,400);
        setTitle("学生端");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);
        //setLayout(new GridLayout(6,1));

        JLabel l1 = new JLabel("学号");
        //t1 = new JTextField(20);

        JLabel l2 = new JLabel("姓名");
        //JTextField t2 = new JTextField(20);

        JLabel l3 = new JLabel("python");

        JLabel l4 = new JLabel("java");

        JLabel l5 = new JLabel("数据库");

        JButton b2 = new JButton("查询");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e)  {
                try {
                    dbopra sdb = new dbopra();
                    String[]a = sdb.select(Integer.parseInt(student.this.t1.getText()));
                    t1.setText(a[1]);
                    t2.setText(a[0]);
                    t3.setText(a[2]);
                    t4.setText(a[3]);
                    t5.setText(a[4]);
                    //sdb.select(student.this.t1.getText());
                }catch(Exception e1){}
            }
        });




        JLayeredPane pa = new JLayeredPane();
        JPanel p1 = new JPanel();
        ImageIcon image = new ImageIcon("3.jpg");
        JLabel jl = new JLabel(image);
        p1 = (JPanel)getContentPane();
        p1.add(jl);

        l1.setBounds(150, 40, 30, 30);
        t1.setBounds(200, 40, 200, 30);
        l2.setBounds(150, 90, 30, 30);
        t2.setBounds(200, 90, 200, 30);
        l3.setBounds(150, 140, 60, 30);
        t3.setBounds(200, 140, 200, 30);
        l4.setBounds(150, 190, 30, 30);
        t4.setBounds(200, 190, 200, 30);
        l5.setBounds(150, 240, 60, 30);
        t5.setBounds(200, 240, 200, 30);
        b2.setBounds(260, 290, 60, 30);;

        pa.add(p1, JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);
        pa.add(l4, JLayeredPane.MODAL_LAYER);
        pa.add(l5, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);
        pa.add(t4, JLayeredPane.MODAL_LAYER);
        pa.add(t5, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);


        setLayeredPane(pa);
        JMenuBar bar = new JMenuBar();
        JMenu op = new JMenu("操作");
        JMenuItem oper = new JMenuItem("多功能面板");
        oper.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                student.this.dispose();
                new menuopra();
            }
        });

        /*JMenuItem returnmain = new JMenuItem("返回主界面");
        oper.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new ();
            }
        });*/


        bar.add(op);
        op.add(oper);
        setJMenuBar(bar);
        setVisible(true);


    }
}


public class run extends JFrame{
    final JTextField t1 = new JTextField(20);
    final JTextField t2 = new JTextField(20);
    final JPasswordField t3 = new JPasswordField(20);
    int input = 6;


    public void init(){
        setSize(580,400);
        setTitle("成绩管理系统");
        setDefaultCloseOperation(3);
        setResizable(false);
        setLocationRelativeTo(null);

        JLabel l1 = new JLabel("身份:");
        //t1 = new JTextField(20);

        JLabel l2 = new JLabel("姓名:");
        //JTextField t2 = new JTextField(20);

        JLabel l3 = new JLabel("密码:");
        //JTextField t3 = new JTextField(20);
        //t3.setEchoChar('*');

        JButton b1 = new JButton("确定");
        b1.setOpaque(false);

        b1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    int aa = 0 ;
                    FileReader fr = new FileReader("E://loguser.txt");
                    BufferedReader br = new BufferedReader(fr);
                    Listlist = new ArrayList();
                    String a = br.readLine();
                    while (a !=null)
                    {
                        list.add(a);
                        a = br.readLine();
                    }
                    /*System.out.println(list.size());
                    System.out.println(list.get(0));
                    System.out.println(list.get(1));
                    System.out.println(list.get(2));
                    System.out.println(list.get(3));*/

                    for (int i = 0; i < list.size(); i++) {

                            String el = list.get(i);
                            //System.out.print(el);
                            //System.out.print(run.this.t2.getText()+String.valueOf(run.this.t3.getPassword()));
                            if (el.equals(run.this.t1.getText() + "," + run.this.t2.getText() + "," + String.valueOf(run.this.t3.getPassword())))
                            {
                                //System.out.print("ok");
                                run.this.dispose();
                                //new student();
                                if (run.this.t1.getText().equals("教师")) {

                                    new teacher();

                                }
                                else if (run.this.t1.getText().equals("学生")) {
                                    new student();
                                }
                                else if (run.this.t1.getText().equals("教师端管理员"))
                                {
                                    new adteacher();
                                }
                                else if (run.this.t1.getText().equals("学生端管理员"))
                                {
                                    new adstudent();
                                }
                                break;
                            }
                            if (!(el.equals(run.this.t1.getText() + "," + run.this.t2.getText() + "," + String.valueOf(run.this.t3.getPassword()))))
                            {
                                aa += 1;
                                //System.out.println(aa);
                                if (aa == list.size())
                                {
                                    //System.out.print(aa);
                                    run.this.input -= 1;
                                    JDialog d = new JDialog();
                                    d.setSize(100, 100);
                                    JOptionPane.showMessageDialog(d, "登录失败！你还有"+input+"次机会", "登陆提示", ERROR_MESSAGE);
                                }
                            }

                    }

                    //JDialog d = new JDialog();
                    //d.setSize(100, 100);
                    //JOptionPane.showMessageDialog(d, "登录失败！你还有"+input+"次机会", "登陆提示", ERROR_MESSAGE);
                    if (input == 0)
                    {
                        run.this.dispose();
                        System.exit(0);
                    }
                }catch(Exception e1) {}
            }
        });
        JButton b2 = new JButton("注册");
        b2.setOpaque(false);
        b2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                try {
                    String[] arr ={};
                    FileWriter fw = new FileWriter("E://loguser.txt",true);
                    fw.write(run.this.t1.getText());
                    fw.write(",");
                    fw.write(run.this.t2.getText());
                    fw.write(",");
                    fw.write(run.this.t3.getText());
                    fw.write("\r\n");
                    fw.close();
                    JDialog d = new JDialog();
                    d.setSize(100, 100);
                    JOptionPane.showMessageDialog(d, "注册成功", "注册提示",JOptionPane.PLAIN_MESSAGE);
                }catch(Exception e1){}
            }
        });
        JButton b3 = new JButton("清空");
        b3.setOpaque(false);
        b3.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                run.this.t1.setText(" ");
                run.this.t2.setText(" ");
                run.this.t3.setText(" ");
                System.out.print(run.this.t3.getPassword());

            }
        });


        //JPanel p2 = new JPanel();
        //JPanel p3 = new JPanel();
        //JPanel p4 = new JPanel();


        JLayeredPane pa = new JLayeredPane();
        JPanel p1 = new JPanel();
        ImageIcon image = new ImageIcon("2.jpg");
        JLabel ji = new JLabel(image);
        p1 = (JPanel)getContentPane();
        p1.add(ji);


        l1.setBounds(100, 120, 30, 30);
        t1.setBounds(150,120,200,30);
        l2.setBounds(100, 170, 30, 30);
        t2.setBounds(150,170,200,30);
        l3.setBounds(100, 220, 30, 30);
        t3.setBounds(150,220,200,30);
        b1.setBounds(150,270,60,30);
        b2.setBounds(290,270,60,30);


        pa.add(p1,JLayeredPane.DEFAULT_LAYER);
        pa.add(l1, JLayeredPane.MODAL_LAYER);
        pa.add(l2, JLayeredPane.MODAL_LAYER);
        pa.add(l3, JLayeredPane.MODAL_LAYER);
        pa.add(t1, JLayeredPane.MODAL_LAYER);
        pa.add(t2, JLayeredPane.MODAL_LAYER);
        pa.add(t3, JLayeredPane.MODAL_LAYER);
        pa.add(b1, JLayeredPane.MODAL_LAYER);
        pa.add(b2, JLayeredPane.MODAL_LAYER);


        setLayeredPane(pa);
        setVisible(true);

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

}

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