Java图形页面代码宿舍管理员管理：能够添加管理员用户、删除管理员用户信息、查找管理员信息、修改管理员信息连接mysql数据库。

好的，下面是Java图形页面代码宿舍管理员管理的实现示例：

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

public class DormitoryManager extends JFrame implements ActionListener {
    private JLabel titleLabel, nameLabel, passwordLabel, phoneLabel, emailLabel;
    private JTextField nameField, phoneField, emailField;
    private JPasswordField passwordField;
    private JButton addButton, deleteButton, searchButton, modifyButton;
    private Connection conn;
    private Statement stmt;
    private ResultSet rs;

    public DormitoryManager() {
        setTitle("宿舍管理员管理");
        setSize(500, 400);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        titleLabel = new JLabel("宿舍管理员管理系统");
        titleLabel.setFont(new Font("微软雅黑", Font.BOLD, 24));
        titleLabel.setForeground(Color.BLUE);
        titleLabel.setHorizontalAlignment(SwingConstants.CENTER);
        add(titleLabel, BorderLayout.NORTH);

        JPanel centerPanel = new JPanel(new GridLayout(5, 2, 10, 10));
        nameLabel = new JLabel("用户名：");
        nameLabel.setHorizontalAlignment(SwingConstants.RIGHT);
        centerPanel.add(nameLabel);
        nameField = new JTextField();
        centerPanel.add(nameField);
        passwordLabel = new JLabel("密码：");
        passwordLabel.setHorizontalAlignment(SwingConstants.RIGHT);
        centerPanel.add(passwordLabel);
        passwordField = new JPasswordField();
        centerPanel.add(passwordField);
        phoneLabel = new JLabel("电话号码：");
        phoneLabel.setHorizontalAlignment(SwingConstants.RIGHT);
        centerPanel.add(phoneLabel);
        phoneField = new JTextField();
        centerPanel.add(phoneField);
        emailLabel = new JLabel("电子邮件：");
        emailLabel.setHorizontalAlignment(SwingConstants.RIGHT);
        centerPanel.add(emailLabel);
        emailField = new JTextField();
        centerPanel.add(emailField);
        add(centerPanel, BorderLayout.CENTER);

        JPanel southPanel = new JPanel(new GridLayout(1, 4, 10, 10));
        addButton = new JButton("添加");
        addButton.addActionListener(this);
        southPanel.add(addButton);
        deleteButton = new JButton("删除");
        deleteButton.addActionListener(this);
        southPanel.add(deleteButton);
        searchButton = new JButton("查找");
        searchButton.addActionListener(this);
        southPanel.add(searchButton);
        modifyButton = new JButton("修改");
        modifyButton.addActionListener(this);
        southPanel.add(modifyButton);
        add(southPanel, BorderLayout.SOUTH);

        setVisible(true);

        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/dormitory", "root", "password");
            stmt = conn.createStatement();
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

    public void actionPerformed(ActionEvent e) {
        if(e.getSource() == addButton) {
            String name = nameField.getText().trim();
            String password = new String(passwordField.getPassword());
            String phone = phoneField.getText().trim();
            String email = emailField.getText().trim();
            try {
                stmt.executeUpdate("INSERT INTO admin(name, password, phone, email) VALUES('" + name + "', '" + password + "', '" + phone + "', '" + email + "')");
                JOptionPane.showMessageDialog(this, "添加成功！");
            } catch(Exception ex) {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this, "添加失败！");
            }
        } else if(e.getSource() == deleteButton) {
            String name = nameField.getText().trim();
            try {
                stmt.executeUpdate("DELETE FROM admin WHERE name = '" + name + "'");
                JOptionPane.showMessageDialog(this, "删除成功！");
            } catch(Exception ex) {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this, "删除失败！");
            }
        } else if(e.getSource() == searchButton) {
            String name = nameField.getText().trim();
            try {
                rs = stmt.executeQuery("SELECT * FROM admin WHERE name = '" + name + "'");
                if(rs.next()) {
                    passwordField.setText(rs.getString("password"));
                    phoneField.setText(rs.getString("phone"));
                    emailField.setText(rs.getString("email"));
                } else {
                    JOptionPane.showMessageDialog(this, "查找失败！");
                }
            } catch(Exception ex) {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this, "查找失败！");
            }
        } else if(e.getSource() == modifyButton) {
            String name = nameField.getText().trim();
            String password = new String(passwordField.getPassword());
            String phone = phoneField.getText().trim();
            String email = emailField.getText().trim();
            try {
                stmt.executeUpdate("UPDATE admin SET password = '" + password + "', phone = '" + phone + "', email = '" + email + "' WHERE name = '" + name + "'");
                JOptionPane.showMessageDialog(this, "修改成功！");
            } catch(Exception ex) {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this, "修改失败！");
            }
        }
    }

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

上述代码实现了添加、删除、查找、修改宿舍管理员信息的功能，并且连接了 MySQL 数据库。注意，因为涉及到数据库连接和操作，需要将 MySQL 驱动程序的 jar 包放到类路径下。