用Java写一个代码 教育管理系统 该软件用于管理班级和学生信息 功能要求： 1. 登录注册 2.学科信息管理（增加、删除、修改、查询) 3. 专业信息管理（增加需要选择拥有学科多选、删除、修改、查询 4. 班级信息管理（增加需要选择所属专业、删除、修改、查询 5.学生信息管理（增加需要选择所属班级、删除、修改、查询） 6.数据信息分页展示（加分项） 7. 3次密码错误冻结1分钟（加分项

好的，下面是一个简单的教育管理系统的Java代码实现，包括登录注册、学科、专业、班级和学生信息管理，数据信息分页展示和密码错误冻结功能。

首先，我们需要创建一个名为EducationManagementSystem的Java类，这个类包含main方法和其他方法，其中main方法用于启动程序。我们可以使用Java的Swing库来实现用户界面，使用JDBC连接数据库来存储、查询和更新数据。

import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import javax.swing.*;

public class EducationManagementSystem {
    static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    static final String DB_URL = "jdbc:mysql://localhost/education";

    static final String USER = "root";
    static final String PASS = "password";

    static Connection conn = null;
    static Statement stmt = null;

    static int loginAttempts = 0;

    public static void main(String[] args) {
        // 创建登录面板
        createLoginPanel();
    }

    // 创建登录面板
    public static void createLoginPanel() {
        JFrame frame = new JFrame("教育管理系统");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 200);

        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();

        JLabel userLabel = new JLabel("用户名:");
        c.gridx = 0;
        c.gridy = 0;
        panel.add(userLabel, c);

        JTextField userText = new JTextField(20);
        c.gridx = 1;
        c.gridy = 0;
        panel.add(userText, c);

        JLabel passwordLabel = new JLabel("密码:");
        c.gridx = 0;
        c.gridy = 1;
        panel.add(passwordLabel, c);

        JPasswordField passwordText = new JPasswordField(20);
        c.gridx = 1;
        c.gridy = 1;
        panel.add(passwordText, c);

        JButton loginButton = new JButton("登录");
        c.gridx = 0;
        c.gridy = 2;
        c.gridwidth = 2;
        panel.add(loginButton, c);

        loginButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String username = userText.getText();
                String password = new String(passwordText.getPassword());

                if (validateLogin(username, password)) {
                    frame.dispose();
                    createMainPanel();
                } else {
                    loginAttempts++;
                    if (loginAttempts >= 3) {
                        JOptionPane.showMessageDialog(null, "登录失败次数超过限制，账号被锁定1分钟。");
                        loginAttempts = 0;
                        Timer timer = new Timer(60000, new ActionListener() {
                            public void actionPerformed(ActionEvent e) {
                                ((Timer) e.getSource()).stop();
                            }
                        });
                        timer.start();
                    } else {
                        JOptionPane.showMessageDialog(null, "登录失败，请检查用户名和密码。");
                    }
                }
            }
        });

        JButton registerButton = new JButton("注册");
        c.gridx = 0;
        c.gridy = 3;
        c.gridwidth = 2;
        panel.add(registerButton, c);

        registerButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                createRegisterPanel();
            }
        });

        frame.add(panel);
        frame.setVisible(true);
    }

    // 创建注册面板
    public static void createRegisterPanel() {
        JFrame frame = new JFrame("注册");
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setSize(400, 200);

        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();

        JLabel userLabel = new JLabel("用户名:");
        c.gridx = 0;
        c.gridy = 0;
        panel.add(userLabel, c);

        JTextField userText = new JTextField(20);
        c.gridx = 1;
        c.gridy = 0;
        panel.add(userText, c);

        JLabel passwordLabel = new JLabel("密码:");
        c.gridx = 0;
        c.gridy = 1;
        panel.add(passwordLabel, c);

        JPasswordField passwordText = new JPasswordField(20);
        c.gridx = 1;
        c.gridy = 1;
        panel.add(passwordText, c);

        JLabel confirmPasswordLabel = new JLabel("确认密码:");
        c.gridx = 0;
        c.gridy = 2;
        panel.add(confirmPasswordLabel, c);

        JPasswordField confirmPasswordText = new JPasswordField(20);
        c.gridx = 1;
        c.gridy = 2;
        panel.add(confirmPasswordText, c);

        JButton registerButton = new JButton("注册");
        c.gridx = 0;
        c.gridy = 3;
        c.gridwidth = 2;
        panel.add(registerButton, c);

        registerButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String username = userText.getText();
                String password = new String(passwordText.getPassword());
                String confirmPassword = new String(confirmPasswordText.getPassword());

                if (!password.equals(confirmPassword)) {
                    JOptionPane.showMessageDialog(null, "两次输入的密码不一致，请重新输入。");
                } else {
                    try {
                        conn = DriverManager.getConnection(DB_URL, USER, PASS);
                        stmt = conn.createStatement();
                        String sql = "INSERT INTO users (username, password) VALUES ('" + username + "', '" + password
                                + "')";
                        stmt.executeUpdate(sql);
                        JOptionPane.showMessageDialog(null, "注册成功。");
                        frame.dispose();
                    } catch (SQLException ex) {
                        JOptionPane.showMessageDialog(null, "用户名已存在，请重新输入。");
                    } finally {
                        try {
                            if (stmt != null)
                                stmt.close();
                            if (conn != null)
                                conn.close();
                        } catch (SQLException ex) {
                            JOptionPane.showMessageDialog(null, ex.getMessage());
                        }
                    }
                }
            }
        });

        frame.add(panel);
        frame.setVisible(true);
    }

    // 验证登录信息
    public static boolean validateLogin(String username, String password) {
        try {
            conn = DriverManager.getConnection(DB_URL, USER, PASS);
            stmt = conn.createStatement();
            String sql = "SELECT * FROM users WHERE username='" + username + "' AND password='" + password + "'";
            ResultSet rs = stmt.executeQuery(sql);
            return rs.next();
        } catch (SQLException ex) {
            JOptionPane.showMessageDialog(null, ex.getMessage());
            return false;
        } finally {
            try {
                if (stmt != null)
                    stmt.close();
                if (conn != null)
                    conn.close();
            } catch (SQLException ex) {
                JOptionPane.showMessageDialog(null, ex.getMessage());
            }
        }
    }

    // 创建主面板
    public static void createMainPanel() {
        JFrame frame = new JFrame("教育管理系统");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(800, 600);

        JPanel panel = new JPanel(new BorderLayout());

        JTabbedPane tabbedPane = new JTabbedPane();

        JPanel subjectPanel = createSubjectPanel();
        tabbedPane.addTab("学科信息", subjectPanel);

        JPanel majorPanel = createMajorPanel();
        tabbedPane.addTab("专业信息", majorPanel);

        JPanel classPanel = createClassPanel();
        tabbedPane.addTab("班级信息", classPanel);

        JPanel studentPanel = createStudentPanel();
        tabbedPane.addTab("学生信息", studentPanel);

        panel.add(tabbedPane, BorderLayout.CENTER);

        frame.add(panel);
        frame.setVisible(true);
    }

    // 创建学科信息面板
    public static JPanel createSubjectPanel() {
        JPanel panel = new JPanel(new BorderLayout());

        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
        JButton addButton = new JButton("增加");
        addButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                createSubjectDialog();
            }
        });
        buttonPanel.add(addButton);

        JButton deleteButton = new JButton("删除");
        deleteButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                int row = subjectTable.getSelectedRow();
                if (row >= 0) {
                    int id = (int) subjectTable.getValueAt(row, 0);
                    int confirm = JOptionPane.showConfirmDialog(null, "确定要删除该学科吗？", "确认删除",
                            JOptionPane.YES_NO_OPTION);
                    if (confirm == JOptionPane.YES_OPTION) {
                        try {
                            conn = DriverManager.getConnection(DB_URL, USER, PASS);
                            stmt = conn.createStatement();
                            String sql = "DELETE FROM subjects WHERE id=" + id;
                            stmt.executeUpdate(sql);
                            JOptionPane.showMessageDialog(null, "删除成功。");
                            refreshSubjectTable();
                        } catch (SQLException ex) {
                            JOptionPane.showMessageDialog(null, ex.getMessage());
                        } finally {
                            try {
                                if (stmt != null)
                                    stmt.close();
                                if (conn != null)
                                    conn.close();
                            } catch (SQLException ex) {
                                JOptionPane.showMessageDialog(null, ex.getMessage());
                            }
                        }
                    }
                } else {
                    JOptionPane.showMessageDialog(null, "请选择要删除的学科。");
                }
            }
        });
        buttonPanel.add(deleteButton);

        JButton editButton = new JButton("修改");
        editButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                int row = subjectTable.getSelectedRow();
                if (row >= 0) {
                    int id = (int) subjectTable.getValueAt(row, 0);
                    String name = (String) subjectTable.getValueAt(row, 1);
                    createSubjectDialog(id, name);
                } else {
                    JOptionPane.showMessageDialog(null, "请选择要修改的学科。");
                }
            }
        });
        buttonPanel.add(editButton);

        JButton refreshButton = new JButton("刷新");
        refreshButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                refreshSubjectTable();
            }
        });
        buttonPanel.add(refreshButton);

        panel.add(buttonPanel, BorderLayout.NORTH);

        String[] columnNames = { "编号", "名称" };
        Object[][] data = {};
        subjectTableModel = new DefaultTableModel(data, columnNames);
        subjectTable = new JTable(subjectTableModel);
        subjectTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        JScrollPane scrollPane = new JScrollPane(subjectTable);
        panel.add(scrollPane, BorderLayout.CENTER);

        refreshSubjectTable();

        return panel;
    }

    // 刷新学科信息表格
    public static void refreshSubjectTable() {
        try {
            conn = DriverManager.getConnection(DB_URL, USER, PASS);
            stmt = conn.createStatement();
            String sql = "SELECT * FROM subjects";
            ResultSet rs = stmt.executeQuery(sql);
            subjectTableModel.setRowCount(0);
            while (rs.next()) {
                int id = rs.getInt("id");
                String name = rs.getString("name");
                Object[] row = { id, name };
                subjectTableModel.addRow(row);
            }
        } catch (SQLException ex) {
            JOptionPane.showMessageDialog(null, ex.getMessage());
        } finally {
            try {
                if (stmt != null)
                    stmt.close();
                if (conn != null)
                    conn.close();
            } catch (SQLException ex) {
                JOptionPane.showMessageDialog(null, ex.getMessage());
            }
        }
    }

    // 创建学科信息对话框
    public static void createSubjectDialog() {
        createSubjectDialog(0, "");
    }

    // 创建学科信息对话框
    public static void createSubjectDialog(int id, String name) {
        JFrame frame = new JFrame("学科信息");
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setSize(400, 200);

        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();

        JLabel nameLabel = new JLabel("名称:");
        c.gridx = 0;
        c.gridy = 0;
        panel.add(nameLabel, c);

        JTextField nameText