用JAVA语言编写中学排课系统的界面设计，要求有学生教室登录界面和查询相应课表，且可以连接sqlserver数据库，给出代码

以下是一个简单的中学排课系统的Java界面设计示例，包括学生和教室登录界面以及查询相应课表功能。其中，使用了Java Swing组件库实现界面设计，使用了JDBC连接SQL Server数据库。

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

public class SchoolScheduleSystem extends JFrame implements ActionListener {
    private JLabel userLabel, passLabel;
    private JTextField userText;
    private JPasswordField passText;
    private JButton loginButton;

    private Connection conn;
    private PreparedStatement stmt;
    private ResultSet rs;

    public SchoolScheduleSystem() {
        super("中学排课系统");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        userLabel = new JLabel("用户名:");
        passLabel = new JLabel("密码:");
        userText = new JTextField(20);
        passText = new JPasswordField(20);
        loginButton = new JButton("登录");
        loginButton.addActionListener(this);

        JPanel panel = new JPanel(new GridLayout(3, 2));
        panel.add(userLabel);
        panel.add(userText);
        panel.add(passLabel);
        panel.add(passText);
        panel.add(loginButton);

        setContentPane(panel);
        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        String user = userText.getText();
        String pass = new String(passText.getPassword());
        if (user.equals("") || pass.equals("")) {
            JOptionPane.showMessageDialog(this, "用户名和密码不能为空！");
        } else {
            try {
                Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
                conn = DriverManager.getConnection(
                    "jdbc:sqlserver://localhost:1433;databaseName=SchoolSchedule", user, pass);
                stmt = conn.prepareStatement("SELECT CourseName, TeacherName, RoomNo, DayOfWeek, ClassPeriod FROM Schedule WHERE StudentID = ?");
                stmt.setInt(1, 1); // TODO: replace with actual student ID
                rs = stmt.executeQuery();

                String[] columns = {"课程名称", "教师姓名", "教室编号", "星期几", "第几节课"};
                Object[][] data = new Object[32][5];
                int i = 0;
                while (rs.next()) {
                    data[i][0] = rs.getString("CourseName");
                    data[i][1] = rs.getString("TeacherName");
                    data[i][2] = rs.getString("RoomNo");
                    data[i][3] = rs.getInt("DayOfWeek");
                    data[i][4] = rs.getInt("ClassPeriod");
                    i++;
                }

                JTable table = new JTable(data, columns);
                JScrollPane scrollPane = new JScrollPane(table);
                JOptionPane.showMessageDialog(this, scrollPane);
            } catch (Exception ex) {
                JOptionPane.showMessageDialog(this, "登录失败！请检查用户名和密码。");
                ex.printStackTrace();
            } finally {
                try { rs.close(); } catch (Exception ex) {}
                try { stmt.close(); } catch (Exception ex) {}
                try { conn.close(); } catch (Exception ex) {}
            }
        }
    }

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

这个示例代码中，使用了JDBC连接SQL Server数据库，查询了学生ID为1的课表，并在对话框中显示了查询结果。你可以根据实际需求修改代码中的查询语句和数据库连接信息。