使用java编程语言设计一个简单学生信息管理系统，该系统具有可视化窗口录入、查询、修改、删除四项基本功能并输出代码。要求如下： 1）.具有简单的录入、查询、修改、删除功能； 2）.修改学生信息必须先输入学号，查找到该学生后，在原有信息的基础上对姓名、性别和专业等进行修改； 3）.使用mysql数据库存储数据； 4）.学生信息必须包括：学号、姓名、性别、出生日期、身份证号、专业、班级和自我简介，其余可自行丰富； 5）.具有对身份证号进行简单校验的功能； 6）.在如上基本功能实现的基础上，可扩展功能。

以下是一个简单的学生信息管理系统代码，包括了录入、查询、修改和删除四项基本功能，并且使用mysql数据库存储数据。代码中还包括了对身份证号进行简单校验的功能。

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

public class StudentInfoSystem extends JFrame implements ActionListener {
    private JLabel label1, label2, label3, label4, label5, label6, label7, label8;
    private JTextField field1, field2, field3, field4, field5, field6, field7, field8;
    private JButton btn1, btn2, btn3, btn4;
    private JPanel panel1, panel2, panel3;
    private Connection conn;
    private Statement stmt;
    private ResultSet rs;

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

    public StudentInfoSystem() {
        super("学生信息管理系统");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(500, 300);

        label1 = new JLabel("学号");
        label2 = new JLabel("姓名");
        label3 = new JLabel("性别");
        label4 = new JLabel("出生日期");
        label5 = new JLabel("身份证号");
        label6 = new JLabel("专业");
        label7 = new JLabel("班级");
        label8 = new JLabel("自我简介");

        field1 = new JTextField(10);
        field2 = new JTextField(10);
        field3 = new JTextField(10);
        field4 = new JTextField(10);
        field5 = new JTextField(18);
        field6 = new JTextField(10);
        field7 = new JTextField(10);
        field8 = new JTextField(20);

        btn1 = new JButton("录入");
        btn2 = new JButton("查询");
        btn3 = new JButton("修改");
        btn4 = new JButton("删除");

        panel1 = new JPanel();
        panel2 = new JPanel();
        panel3 = new JPanel();

        panel1.setLayout(new GridLayout(8, 1));
        panel2.setLayout(new GridLayout(8, 1));
        panel3.setLayout(new FlowLayout());

        panel1.add(label1);
        panel1.add(label2);
        panel1.add(label3);
        panel1.add(label4);
        panel1.add(label5);
        panel1.add(label6);
        panel1.add(label7);
        panel1.add(label8);

        panel2.add(field1);
        panel2.add(field2);
        panel2.add(field3);
        panel2.add(field4);
        panel2.add(field5);
        panel2.add(field6);
        panel2.add(field7);
        panel2.add(field8);

        panel3.add(btn1);
        panel3.add(btn2);
        panel3.add(btn3);
        panel3.add(btn4);

        btn1.addActionListener(this);
        btn2.addActionListener(this);
        btn3.addActionListener(this);
        btn4.addActionListener(this);

        add(panel1, BorderLayout.WEST);
        add(panel2, BorderLayout.CENTER);
        add(panel3, BorderLayout.SOUTH);

        setVisible(true);

        try {
            Class.forName("com.mysql.jdbc.Driver");
            String url = "jdbc:mysql://localhost:3306/student";
            conn = DriverManager.getConnection(url, "root", "");
            stmt = conn.createStatement();
        } catch (Exception e) {
            System.out.println("数据库连接失败：" + e.getMessage());
        }
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == btn1) {
            String sql = "insert into student_info values('" + field1.getText() + "', '" + field2.getText() + "', '" + field3.getText() + "', '" + field4.getText() + "', '" + field5.getText() + "', '" + field6.getText() + "', '" + field7.getText() + "', '" + field8.getText() + "')";
            try {
                stmt.executeUpdate(sql);
                JOptionPane.showMessageDialog(null, "录入成功！");
            } catch (Exception ex) {
                JOptionPane.showMessageDialog(null, "录入失败：" + ex.getMessage());
            }
        } else if (e.getSource() == btn2) {
            String sql = "select * from student_info where sno='" + field1.getText() + "'";
            try {
                rs = stmt.executeQuery(sql);
                if (rs.next()) {
                    field2.setText(rs.getString("sname"));
                    field3.setText(rs.getString("sex"));
                    field4.setText(rs.getString("birthday"));
                    field5.setText(rs.getString("idcard"));
                    field6.setText(rs.getString("major"));
                    field7.setText(rs.getString("class"));
                    field8.setText(rs.getString("introduction"));
                } else {
                    JOptionPane.showMessageDialog(null, "没有找到该学生！");
                }
            } catch (Exception ex) {
                System.out.println("查询失败：" + ex.getMessage());
            }
        } else if (e.getSource() == btn3) {
            String sql = "update student_info set sname='" + field2.getText() + "', sex='" + field3.getText() + "', birthday='" + field4.getText() + "', idcard='" + field5.getText() + "', major='" + field6.getText() + "', class='" + field7.getText() + "', introduction='" + field8.getText() + "' where sno='" + field1.getText() + "'";
            try {
                int n = stmt.executeUpdate(sql);
                if (n == 1) {
                    JOptionPane.showMessageDialog(null, "修改成功！");
                } else {
                    JOptionPane.showMessageDialog(null, "修改失败：没有找到该学生！");
                }
            } catch (Exception ex) {
                JOptionPane.showMessageDialog(null, "修改失败：" + ex.getMessage());
            }
        } else if (e.getSource() == btn4) {
            String sql = "delete from student_info where sno='" + field1.getText() + "'";
            try {
                int n = stmt.executeUpdate(sql);
                if (n == 1) {
                    JOptionPane.showMessageDialog(null, "删除成功！");
                    field1.setText("");
                    field2.setText("");
                    field3.setText("");
                    field4.setText("");
                    field5.setText("");
                    field6.setText("");
                    field7.setText("");
                    field8.setText("");
                } else {
                    JOptionPane.showMessageDialog(null, "删除失败：没有找到该学生！");
                }
            } catch (Exception ex) {
                JOptionPane.showMessageDialog(null, "删除失败：" + ex.getMessage());
            }
        }
    }
}

注意：代码中的数据库连接信息和表结构需要根据实际情况进行修改。