夫陶公
清风千古，余又何人，敢称庶几
代码已移至Gitee ：
https://gitee.com/BreezAm/edu-student
文章目录
- 简要：
- 登陆运行效果
- 主界面运行效果图
- 界面设置运行效果图
- 网络配置界面运行效果图
- 菜单栏运行效果图
- 登陆窗体实现
- 窗体界面设置功能对话框
- 网络配置对话框实现代码
- 主窗体实现
- 字符串判空工具代码
- 学生信息模型
- 用户登陆信息模型
- 界面修改模型
- 数据库后台实现
简要：
今天做了一个1800行代码的学生成绩管理系统，主要实现增删改查等操作，还大部分功能尚未实现，这个项目是基于java+swing+jdbc+mysql的融合，主要对学习过的知识进行综合的复习,如果项目中有bug的地方，可以在评论区留言，在此谢过。
登陆运行效果
该登陆只能管理员登陆，当用户输入账号和密码时，会与数据库中的信息进行对比，如果信息无误，销毁登陆对话框，显示主窗体，如果输入错误，提示信息并则清空文本框，继续输入。
主界面运行效果图
界面设置运行效果图
此功能为修改窗体大小，背景颜色，位置，标题，没有提供代码，留给感兴趣的靓仔实现
网络配置界面运行效果图
此功能主要用来远程连接数据库,，未提供实现代码。
菜单栏运行效果图
登陆窗体实现
package com.student.frame;
import com.student.Data.Dao;
import com.student.modal.User;
import com.student.util.StringUtil;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.sql.SQLException;
import java.awt.event.ActionEvent;
public class Login extends JDialog {private JTextField userField;private JPasswordField passwordField;public Login() {try {setVisible(true);setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);} catch (Exception e) {e.printStackTrace();}setTitle("学生成绩管理系统");setResizable(false);setSize( 545, 381);setLocationRelativeTo(null);getContentPane().setLayout(null);JLabel label = new JLabel("用户登录");label.setHorizontalAlignment(SwingConstants.CENTER);label.setFont(new Font("Dialog", Font.BOLD, 30));label.setBounds(12, 0, 521, 85);getContentPane().add(label);JLabel label_1 = new JLabel("账 号：");label_1.setIcon(new ImageIcon(Login.class.getResource("/icon/user4.png")));label_1.setFont(new Font("Dialog", Font.BOLD, 15));label_1.setBounds(92, 166, 98, 32);getContentPane().add(label_1);JLabel label_2 = new JLabel("密 码：");label_2.setIcon(new ImageIcon(Login.class.getResource("/icon/psw3.png")));label_2.setFont(new Font("Dialog", Font.BOLD, 15));label_2.setBounds(92, 210, 98, 32);getContentPane().add(label_2);userField = new JTextField();userField.setBounds(191, 173, 240, 22);getContentPane().add(userField);userField.setColumns(10);passwordField = new JPasswordField();passwordField.setEchoChar('*');passwordField.setBounds(191, 218, 240, 22);getContentPane().add(passwordField);JButton ok = new JButton(" ");//登陆事件ok.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {if(StringUtil.isEmpy(userField.getText())){JOptionPane.showMessageDialog(null, "账号不能为空");return;}else if(StringUtil.isEmpy(new String(passwordField.getPassword()))){JOptionPane.showMessageDialog(null, "密码不能为空");return;}else {User u=new User();u.setUser(Double.parseDouble(userField.getText()));u.setPassword(new String(passwordField.getPassword()));try {User user = Dao.checkLogin(u);if(user!=null) {JOptionPane.showMessageDialog(null, "登陆成功");dispose();new MainWindow().setVisible(true);}else {JOptionPane.showMessageDialog(null, "账号或密码有误");userField.setText("");passwordField.setText("");return;}} catch (SQLException e) {e.printStackTrace();}}}});ok.setIcon(new ImageIcon(Login.class.getResource("/icon/exit2.png")));ok.setBounds(155, 285, 73, 32);getContentPane().add(ok);JButton cancel = new JButton(" ");//退出系统事件cancel.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {System.exit(0);}});passwordField.addKeyListener(new java.awt.event.KeyAdapter() {public void keyTyped(java.awt.event.KeyEvent e) {if(e.getKeyChar()=='\n') {ok.doClick(10);}}});cancel.setIcon(new ImageIcon(Login.class.getResource("/icon/exite1.png")));cancel.setBounds(358, 285, 73, 32);getContentPane().add(cancel);JLabel lblNewLabel = new JLabel("登陆背景");lblNewLabel.setIcon(new ImageIcon(Login.class.getResource("/iimages/timg2.jpeg")));lblNewLabel.setBounds(0, -54, 545, 405);getContentPane().add(lblNewLabel);}
}窗体界面设置功能对话框
package com.student.frame;import java.awt.BorderLayout;
import java.awt.FlowLayout;import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.LayoutStyle.ComponentPlacement;
import java.awt.Font;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;public class ThemeFrame extends JDialog {private final JPanel contentPanel = new JPanel();private JTextField textField;private JTextField textField_1;private JTextField textField_2;private JTextField textField_3;private JTextField textField_4;public ThemeFrame() {setModal(true);setResizable(false);try {setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);setVisible(false);} catch (Exception e) {e.printStackTrace();}setTitle("主题修改");setSize(423, 416);setLocationRelativeTo(null);getContentPane().setLayout(new BorderLayout());contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));getContentPane().add(contentPanel, BorderLayout.CENTER);JComboBox backgroundBox = new JComboBox();JLabel background = new JLabel("窗口背景：");background.setFont(new Font("Dialog", Font.BOLD, 15));JLabel title = new JLabel("标 题：");title.setFont(new Font("Dialog", Font.BOLD, 15));textField = new JTextField();textField.setColumns(15);JLabel label = new JLabel("窗口大小：");label.setFont(new Font("Dialog", Font.BOLD, 15));textField_1 = new JTextField();textField_1.setText(" ");textField_1.setColumns(5);JLabel lblNewLabel_2 = new JLabel("X：");JLabel lblY = new JLabel("Y：");textField_2 = new JTextField();textField_2.setText(" ");textField_2.setColumns(5);JLabel label_1 = new JLabel("窗口位置：");label_1.setFont(new Font("Dialog", Font.BOLD, 15));JLabel lblX = new JLabel("X：");textField_3 = new JTextField();textField_3.setText(" ");textField_3.setColumns(5);JLabel lblY_1 = new JLabel("Y：");textField_4 = new JTextField();textField_4.setText(" ");textField_4.setColumns(5);JButton apllyAndClose = new JButton("应用和关闭");apllyAndClose.setIcon(new ImageIcon(ThemeFrame.class.getResource("/icon/应用.png")));/*** 主题修改单机事件* */apllyAndClose.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {dispose();}});JButton Default = new JButton("默认");Default.setIcon(new ImageIcon(ThemeFrame.class.getResource("/icon/默认.png")));GroupLayout gl_contentPanel = new GroupLayout(contentPanel);gl_contentPanel.setHorizontalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addContainerGap().addGroup(gl_contentPanel.createParallelGroup(Alignment.TRAILING).addGroup(gl_contentPanel.createSequentialGroup().addComponent(background).addPreferredGap(ComponentPlacement.RELATED).addComponent(backgroundBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addContainerGap(283, Short.MAX_VALUE)).addGroup(gl_contentPanel.createSequentialGroup().addComponent(label).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addComponent(lblY).addComponent(lblNewLabel_2)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addGap(31).addComponent(label_1)).addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addComponent(lblX).addComponent(lblY_1)).addGap(3).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(36)).addGroup(gl_contentPanel.createSequentialGroup().addComponent(title).addPreferredGap(ComponentPlacement.RELATED).addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addContainerGap()).addGroup(gl_contentPanel.createSequentialGroup().addComponent(Default).addPreferredGap(ComponentPlacement.RELATED, 237, Short.MAX_VALUE).addComponent(apllyAndClose).addContainerGap()))));gl_contentPanel.setVerticalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addGap(34).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(background).addComponent(backgroundBox, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(title).addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(27).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(label).addComponent(lblNewLabel_2).addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(label_1).addComponent(lblX).addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(lblY).addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addGroup(gl_contentPanel.createSequentialGroup().addGap(25).addComponent(lblY_1)).addGroup(gl_contentPanel.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addPreferredGap(ComponentPlacement.RELATED, 115, Short.MAX_VALUE).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(apllyAndClose).addComponent(Default)).addGap(38)));contentPanel.setLayout(gl_contentPanel);{JPanel buttonPane = new JPanel();buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));getContentPane().add(buttonPane, BorderLayout.SOUTH);}}
}
网络配置对话框实现代码
package com.student.modal;import java.awt.BorderLayout;
import java.awt.FlowLayout;import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JLabel;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.ImageIcon;
import javax.swing.border.LineBorder;
import java.awt.Color;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JTextField;
import javax.swing.JCheckBox;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;public class InternetConfigFrame extends JDialog {private final JPanel contentPanel = new JPanel();private JTextField textField;private JTextField textField_1;private JTextField textField_2;private JTextField textField_3;private JTextField textField_4;public InternetConfigFrame() {try {setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);setVisible(false);} catch (Exception e) {e.printStackTrace();}setResizable(false);setModal(true);setTitle("MySQL 新建连接");setSize(591, 556);setLocationRelativeTo(null);getContentPane().setLayout(new BorderLayout());contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));getContentPane().add(contentPanel, BorderLayout.CENTER);JPanel panel = new JPanel();panel.setBackground(Color.WHITE);panel.setBorder(new LineBorder(Color.LIGHT_GRAY, 5));JLabel label_2 = new JLabel("连接名：");textField = new JTextField();textField.setColumns(30);JLabel label_3 = new JLabel("主机：");JLabel lblNewLabel_5 = new JLabel("端口");JLabel label_4 = new JLabel("用户名：");JLabel label_5 = new JLabel("密码：");textField_1 = new JTextField();textField_1.setColumns(10);textField_2 = new JTextField();textField_2.setColumns(10);textField_3 = new JTextField();textField_3.setColumns(10);textField_4 = new JTextField();textField_4.setColumns(10);JCheckBox chckbxNewCheckBox = new JCheckBox("保存密码");JPanel panel_1 = new JPanel();panel_1.setBorder(new LineBorder(Color.WHITE, 2));GroupLayout gl_contentPanel = new GroupLayout(contentPanel);gl_contentPanel.setHorizontalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addGap(22).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addComponent(panel, GroupLayout.PREFERRED_SIZE, 539, GroupLayout.PREFERRED_SIZE).addContainerGap()).addGroup(gl_contentPanel.createSequentialGroup().addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addComponent(label_2).addComponent(label_3).addComponent(lblNewLabel_5).addComponent(label_4).addComponent(label_5)).addGap(75).addGroup(gl_contentPanel.createParallelGroup(Alignment.TRAILING).addComponent(textField, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 378, Short.MAX_VALUE).addComponent(textField_1, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 378, Short.MAX_VALUE).addComponent(textField_2, Alignment.LEADING, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addGroup(Alignment.LEADING, gl_contentPanel.createParallelGroup(Alignment.TRAILING, false).addComponent(textField_4, Alignment.LEADING).addComponent(textField_3, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 241, Short.MAX_VALUE).addComponent(chckbxNewCheckBox, Alignment.LEADING))).addGap(58)))).addGroup(gl_contentPanel.createSequentialGroup().addContainerGap().addComponent(panel_1, GroupLayout.PREFERRED_SIZE, 569, GroupLayout.PREFERRED_SIZE).addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)));gl_contentPanel.setVerticalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addComponent(panel, GroupLayout.PREFERRED_SIZE, 114, GroupLayout.PREFERRED_SIZE).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addGap(38).addComponent(label_2)).addGroup(gl_contentPanel.createSequentialGroup().addGap(26).addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))).addGap(26).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(label_3).addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(29).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_5).addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(26).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(label_4).addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(18).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(label_5).addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(18).addComponent(chckbxNewCheckBox).addGap(26).addComponent(panel_1, GroupLayout.PREFERRED_SIZE, 62, GroupLayout.PREFERRED_SIZE).addContainerGap()));JButton button = new JButton("测试连接");button.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/测试 检测.png")));JButton button_1 = new JButton("确定");button_1.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/应用.png")));JButton button_2 = new JButton("取消");button_2.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/取消.png")));button_2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {dispose();//销毁对话框}});GroupLayout gl_panel_1 = new GroupLayout(panel_1);gl_panel_1.setHorizontalGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(Alignment.TRAILING, gl_panel_1.createSequentialGroup().addContainerGap().addComponent(button, GroupLayout.PREFERRED_SIZE, 143, GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED, 277, Short.MAX_VALUE).addComponent(button_1).addPreferredGap(ComponentPlacement.UNRELATED).addComponent(button_2).addGap(5)));gl_panel_1.setVerticalGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(Alignment.TRAILING, gl_panel_1.createSequentialGroup().addContainerGap(18, Short.MAX_VALUE).addGroup(gl_panel_1.createParallelGroup(Alignment.TRAILING).addComponent(button).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(button_1).addComponent(button_2))).addContainerGap()));panel_1.setLayout(gl_panel_1);JLabel lblNewLabel = new JLabel("Navicat");JLabel lblNewLabel_1 = new JLabel(" ");lblNewLabel_1.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/连接.png")));JLabel lblNewLabel_2 = new JLabel("数据库");JLabel lblNewLabel_3 = new JLabel(" ");lblNewLabel_3.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/数据库.png")));JLabel lblNewLabel_4 = new JLabel(" ");lblNewLabel_4.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/直线_图形对象_jurassic.png")));JLabel label = new JLabel(" ");label.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/直线_图形对象_jurassic.png")));JLabel label_1 = new JLabel(" ");label_1.setIcon(new ImageIcon(InternetConfigFrame.class.getResource("/icon/直线_图形对象_jurassic.png")));GroupLayout gl_panel = new GroupLayout(panel);gl_panel.setHorizontalGroup(gl_panel.createParallelGroup(Alignment.LEADING).addGroup(gl_panel.createSequentialGroup().addGap(150).addGroup(gl_panel.createParallelGroup(Alignment.TRAILING).addComponent(lblNewLabel).addComponent(lblNewLabel_1)).addPreferredGap(ComponentPlacement.RELATED).addComponent(label_1, GroupLayout.PREFERRED_SIZE, 55, GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(lblNewLabel_4).addPreferredGap(ComponentPlacement.RELATED).addComponent(label, GroupLayout.PREFERRED_SIZE, 55, GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED, 31, Short.MAX_VALUE).addGroup(gl_panel.createParallelGroup(Alignment.LEADING).addComponent(lblNewLabel_3).addComponent(lblNewLabel_2)).addGap(152)));gl_panel.setVerticalGroup(gl_panel.createParallelGroup(Alignment.LEADING).addGroup(Alignment.TRAILING, gl_panel.createSequentialGroup().addContainerGap(19, Short.MAX_VALUE).addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel_3).addComponent(lblNewLabel_1)).addGap(18).addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(lblNewLabel).addComponent(lblNewLabel_2)).addGap(27)).addGroup(gl_panel.createSequentialGroup().addGap(44).addGroup(gl_panel.createParallelGroup(Alignment.BASELINE).addComponent(label_1, GroupLayout.PREFERRED_SIZE, 21, GroupLayout.PREFERRED_SIZE).addComponent(lblNewLabel_4, GroupLayout.PREFERRED_SIZE, 21, Short.MAX_VALUE).addComponent(label, GroupLayout.PREFERRED_SIZE, 21, GroupLayout.PREFERRED_SIZE)).addContainerGap()));panel.setLayout(gl_panel);contentPanel.setLayout(gl_contentPanel);{JPanel buttonPane = new JPanel();buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));getContentPane().add(buttonPane, BorderLayout.SOUTH);}JMenuBar menuBar = new JMenuBar();setJMenuBar(menuBar);JMenu menu = new JMenu("常规");menuBar.add(menu);}
}
主窗体实现
package com.student.frame;import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.util.List;
import java.util.Vector;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;import com.student.Data.Dao;
import com.student.modal.InternetConfigFrame;
import com.student.modal.StudentData;
import com.student.util.StringUtil;import javax.swing.JToolBar;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import java.awt.FlowLayout;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.SwingConstants;
import javax.swing.ImageIcon;
import java.awt.Font;
import java.awt.HeadlessException;
import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.awt.event.ActionEvent;
import javax.swing.table.DefaultTableModel;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import java.awt.Color;
import javax.swing.UIManager;
import javax.swing.JLabel;
import javax.swing.border.TitledBorder;
import javax.swing.border.LineBorder;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;public class MainWindow extends JFrame {/*** 表单*/private static JTable table;/*** 文本域*/private JTextField stuField;private JTextField nameField;private JTextField ageField;private JTextField mathField;private JTextField javaField;private JTextField cField;private JTextField englishField;private JRadioButton radioMan;private JRadioButton radioFemal;private final ButtonGroup buttonGroup = new ButtonGroup();public static void main(String[] args) {try {MainWindow frame = new MainWindow();frame.setVisible(false);} catch (Exception e) {e.printStackTrace();}}public MainWindow() {new Login();setFont(new Font("Dialog", Font.PLAIN, 18));setTitle("学生成绩管理系统");setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 800, 600);setLocationRelativeTo(null);JMenuBar menuBar = new JMenuBar();setJMenuBar(menuBar);JMenu menu = new JMenu("基本信息");/*** * 主页监听事件* */menu.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/管理(2).png")));menuBar.add(menu);JMenu menu_1 = new JMenu("设置");menu_1.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/设置.png")));menuBar.add(menu_1);JMenuItem menuItem = new JMenuItem("主题");menuItem.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {new ThemeFrame().setVisible(true);}});menuItem.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/界面设计.png")));menu_1.add(menuItem);JMenuItem menuItem_2 = new JMenuItem("网络配置");/*** * 网络配置单机事件* */menuItem_2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {new InternetConfigFrame().setVisible(true);}});menuItem_2.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/网络.png")));menu_1.add(menuItem_2);JMenuItem menuItem_1 = new JMenuItem("退出系统");menuItem_1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {System.exit(0);}});menuItem_1.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/退出.png")));menu_1.add(menuItem_1);JButton button = new JButton("刷新");button.setForeground(Color.BLACK);button.setBackground(UIManager.getColor("Button.background"));/*** * 刷新表格* */button.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {try {fillTable(Dao.selectData());} catch (SQLException e) {e.printStackTrace();}}});button.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/刷新.png")));menuBar.add(button);getContentPane().setLayout(new BorderLayout(0, 0));JPanel panel = new JPanel();FlowLayout flowLayout_1 = (FlowLayout) panel.getLayout();flowLayout_1.setVgap(70);flowLayout_1.setHgap(0);getContentPane().add(panel, BorderLayout.SOUTH);JPanel panel_1 = new JPanel();panel_1.setBorder(new TitledBorder(null, "\u8868\u5355\u64CD\u4F5C", TitledBorder.LEADING, TitledBorder.TOP, null, null));getContentPane().add(panel_1, BorderLayout.WEST);JLabel stuText = new JLabel("学号：");stuField = new JTextField();/*** * 学号输入显示信息* */stuField.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {searchData();}});stuField.setColumns(10);JLabel nameText = new JLabel("姓名：");nameField = new JTextField();nameField.setColumns(10);JLabel ageText = new JLabel("年龄：");ageField = new JTextField();ageField.setColumns(10);JLabel label = new JLabel("性别：");radioMan = new JRadioButton("男");radioMan.setSelected(true);buttonGroup.add(radioMan);radioFemal = new JRadioButton("女");buttonGroup.add(radioFemal);JLabel label_1 = new JLabel("高数：");mathField = new JTextField();mathField.setColumns(10);JLabel lblJava = new JLabel("java:");javaField = new JTextField();javaField.setColumns(10);JLabel lblC = new JLabel("c语言:");cField = new JTextField();cField.setColumns(10);JLabel label_2 = new JLabel("英语：");englishField = new JTextField();englishField.setColumns(10);JButton button_1 = new JButton("修改");/*** * 修改信息事件* */button_1.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {StudentData stu=new StudentData();if(StringUtil.isEmpy(stuField.getText())) {JOptionPane.showMessageDialog(null, "学号不能为空！");}else if(StringUtil.isEmpy(nameField.getText())) {JOptionPane.showMessageDialog(null, "姓名不能为空！");}else if(StringUtil.isEmpy(ageField.getText())) {JOptionPane.showMessageDialog(null, "年龄不能为空！");}else {stu.setNum(Integer.parseInt(stuField.getText()));stu.setName(nameField.getText());stu.setAge(Integer.parseInt(ageField.getText()));if(radioMan.isSelected()) {stu.setSex("男");}else {stu.setSex("女");}stu.setNum(Integer.parseInt(stuField.getText()));stu.setMath(Float.parseFloat(mathField.getText()));stu.setJava(Float.parseFloat(javaField.getText()));stu.setC(Float.parseFloat(cField.getText()));stu.setEnglish(Float.parseFloat(englishField.getText()));try {if(Dao.updateData(stu)>0) {JOptionPane.showMessageDialog(null, "修改成功！");fillTable(Dao.selectData());}else {JOptionPane.showMessageDialog(null, "修改失败！");}} catch (SQLException e) {e.printStackTrace();}}}});button_1.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/修改(2).png")));JButton button_2 = new JButton("添加");/*** * 添加信息事件* */button_2.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {if(StringUtil.isEmpy(stuField.getText())) {JOptionPane.showMessageDialog(null, "学号不能为空！");}else if(StringUtil.isEmpy(nameField.getText())) {JOptionPane.showMessageDialog(null, "姓名不能为空！");}else if(StringUtil.isEmpy(ageField.getText())) {JOptionPane.showMessageDialog(null, "年龄不能为空！");}else {StudentData stu=new StudentData();stu.setNum(Integer.parseInt(stuField.getText()));stu.setName(nameField.getText());stu.setAge(Integer.parseInt(ageField.getText()));if(radioMan.isSelected()) {stu.setSex("男");}else {stu.setSex("女");}stu.setMath(Float.parseFloat(mathField.getText()));stu.setJava(Float.parseFloat(javaField.getText()));stu.setC(Float.parseFloat(cField.getText()));stu.setEnglish(Float.parseFloat(englishField.getText()));try {if(JOptionPane.showConfirmDialog(null, "确定添加！")==0) {if(Dao.addData(stu)==1) {JOptionPane.showMessageDialog(null, "添加成功！");fillTable(Dao.selectData());//刷新表单}else {JOptionPane.showMessageDialog(null, "添加失败！");return;}}else {return;}} catch (SQLException e) {e.printStackTrace();}}}});button_2.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/添加.png")));JButton button_3 = new JButton("删除");/*** * 删除鼠标单机事件* */button_3.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {StudentData stu=new StudentData();if(StringUtil.isEmpy(stuField.getText())) {JOptionPane.showMessageDialog(null, "请输入你要删除的学号！");}else {stu.setNum(Integer.parseInt(stuField.getText()));try {if(JOptionPane.showConfirmDialog(null, "确定要删除")==0) {if(Dao.deleteData(stu)>1) {JOptionPane.showMessageDialog(null, "删除成功！");clearText();fillTable(Dao.selectData());clearText();}else {JOptionPane.showMessageDialog(null, "删除失败！");}}else {return;}} catch (SQLException e) {e.printStackTrace();}}}});button_3.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/删 除 (1).png")));JButton button_4 = new JButton("搜索");/*** * 搜索点击事件* */button_4.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {searchData();}});button_4.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/查找(1).png")));JButton button_5 = new JButton("清空");/*** * 清空表单事件* */button_5.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {clearText();}});button_5.setIcon(new ImageIcon(MainWindow.class.getResource("/icon/清空.png")));GroupLayout gl_panel_1 = new GroupLayout(panel_1);gl_panel_1.setHorizontalGroup(gl_panel_1.createParallelGroup(Alignment.TRAILING).addGroup(gl_panel_1.createSequentialGroup().addContainerGap(20, Short.MAX_VALUE).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(button_1).addGroup(gl_panel_1.createSequentialGroup().addGroup(gl_panel_1.createParallelGroup(Alignment.TRAILING).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(lblJava).addComponent(lblC).addGroup(gl_panel_1.createParallelGroup(Alignment.TRAILING).addComponent(label_1).addComponent(label))).addComponent(label_2).addComponent(ageText).addComponent(nameText).addComponent(stuText)).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addComponent(javaField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGroup(gl_panel_1.createSequentialGroup().addGap(18).addComponent(radioMan).addGap(18).addComponent(radioFemal)).addGroup(gl_panel_1.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(englishField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(cField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(button_2, Alignment.TRAILING))).addGroup(gl_panel_1.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(stuField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(mathField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(nameField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(ageField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))))).addGroup(gl_panel_1.createSequentialGroup().addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(button_5).addGroup(gl_panel_1.createSequentialGroup().addComponent(button_3).addPreferredGap(ComponentPlacement.RELATED).addComponent(button_4))))).addGap(18)));gl_panel_1.setVerticalGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(stuText).addComponent(stuField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(nameText).addComponent(nameField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(ageText).addComponent(ageField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addGap(8).addComponent(label)).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(radioMan).addComponent(radioFemal))).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(label_1).addComponent(mathField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(18).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(lblJava).addComponent(javaField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addGap(18).addGroup(gl_panel_1.createParallelGroup(Alignment.BASELINE).addComponent(lblC).addComponent(cField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(label_2).addComponent(englishField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addComponent(button_1).addComponent(button_2)).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_panel_1.createParallelGroup(Alignment.LEADING).addGroup(gl_panel_1.createSequentialGroup().addComponent(button_3).addPreferredGap(ComponentPlacement.RELATED, 9, Short.MAX_VALUE).addComponent(button_5)).addGroup(gl_panel_1.createSequentialGroup().addComponent(button_4).addContainerGap()))));panel_1.setLayout(gl_panel_1);JPanel panel_2 = new JPanel();FlowLayout flowLayout_2 = (FlowLayout) panel_2.getLayout();flowLayout_2.setHgap(0);flowLayout_2.setVgap(60);getContentPane().add(panel_2, BorderLayout.NORTH);JPanel panel_3 = new JPanel();FlowLayout flowLayout_3 = (FlowLayout) panel_3.getLayout();flowLayout_3.setHgap(120);flowLayout_3.setVgap(50);getContentPane().add(panel_3, BorderLayout.EAST);JScrollPane scrollPane = new JScrollPane();getContentPane().add(scrollPane, BorderLayout.CENTER);table = new JTable();/*** * 表单选中事件* */table.addMouseListener(new MouseAdapter() {@Overridepublic void mousePressed(MouseEvent e) {int row=table.getSelectedRow();stuField.setText(String.valueOf(table.getValueAt(row, 1)));nameField.setText((String) (table.getValueAt(row, 2)));ageField.setText(String.valueOf(table.getValueAt(row, 3)));String sex=(String) table.getValueAt(row, 4);if(sex.equals("男")) {radioMan.setSelected(true);}else {radioFemal.setSelected(true);}mathField.setText(String.valueOf(table.getValueAt(row, 5)));javaField.setText(String.valueOf(table.getValueAt(row, 6)));cField.setText(String.valueOf(table.getValueAt(row, 7)));englishField.setText(String.valueOf(table.getValueAt(row, 8)));}});/*** * * 菜单模型* * */table.setModel(new DefaultTableModel(new Object[][] {},new String[] {"\u5E8F\u53F7", "\u5B66\u53F7", "\u59D3\u540D", "\u5E74\u9F84", "\u6027\u522B", "\u9AD8\u6570", "JAVA", "C\u8BED\u8A00", "\u82F1\u8BED"}) {boolean[] columnEditables = new boolean[] {true, true, true, true, true, true, true, true, false};public boolean isCellEditable(int row, int column) {return columnEditables[column];package com.student.util;public class StringUtil {public static Boolean isEmpy(String str) {if(str==null||"".equals(str.trim())) {return true;}else {return false;}}public static Boolean notIsEmpy(String str) {if(str!=null&&!"".equals(str.trim())) {return true;}else {return false;}}}}});table.getColumnModel().getColumn(8).setResizable(false);try {this.fillTable(Dao.selectData());} catch (SQLException e1) {e1.printStackTrace();}scrollPane.setViewportView(table);}/*** * 填充表格方法* @param result* */public static void fillTable( ResultSet result) {DefaultTableModel det=(DefaultTableModel) table.getModel();det.setRowCount(0);try {ResultSet rs=result;while(rs.next()) {Vector v=new Vector();v.add(rs.getInt(1));v.add(rs.getInt(2));v.add(rs.getString(3));v.add(rs.getString(4));v.add(rs.getString(5));v.add(rs.getString(6));v.add(rs.getString(7));v.add(rs.getString(8));v.add(rs.getString(9));det.addRow(v);}} catch (SQLException e) {e.printStackTrace();}}/*** * * 搜索数据* * */public void searchData() {if(StringUtil.isEmpy(stuField.getText())) {JOptionPane.showMessageDialog(null, "请输入学号！");return;}else {try {StudentData stu=new StudentData();stu.setNum(Integer.parseInt(stuField.getText()));ResultSet rs =Dao.search(stu);if(rs.next()) {fillTable(Dao.search(stu));stuField.setText(String.valueOf(rs.getInt(2)));nameField.setText(rs.getString(3));ageField.setText(String.valueOf(rs.getInt(4)));if(rs.getString(5).equals("男")) {radioMan.setSelected(true);}else {radioFemal.setSelected(true);}mathField.setText(String.valueOf(rs.getFloat(6)));javaField.setText(String.valueOf(rs.getFloat(7)));cField.setText(String.valueOf(rs.getFloat(8)));englishField.setText(String.valueOf(rs.getFloat(9)));return;}else {JOptionPane.showMessageDialog(null, "没有此学生或学号输入有误");return;}} catch (SQLException e) {e.printStackTrace();}}}/*** * 文本框制空*/public void clearText() {stuField.setText("");nameField.setText("");ageField.setText("");radioMan.setSelected(true);mathField.setText("");javaField.setText("");cField.setText("");englishField.setText("");}
}字符串判空工具代码
package com.student.util;public class StringUtil {public static Boolean isEmpy(String str) {if(str==null||"".equals(str.trim())) {return true;}else {return false;}}public static Boolean notIsEmpy(String str) {if(str!=null&&!"".equals(str.trim())) {return true;}else {return false;}}}学生信息模型
package com.student.modal;public class StudentData {private int id;private int num;private String name;private String sex;private int age;private float math;private float java;private float c;private float english;public int getId() {return id;}public void setId(int id) {this.id = id;}public int getNum() {return num;}public void setNum(int num) {this.num = num;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public float getMath() {return math;}public void setMath(float math) {this.math = math;}public float getJava() {return java;}public void setJava(float java) {this.java = java;}public float getC() {return c;}public void setC(float c) {this.c = c;}public float getEnglish() {return english;}public void setEnglish(float english) {this.english = english;}}
用户登陆信息模型
package com.student.modal;public class User {private double user;private String password;public Double getUser() {return user;}public void setUser(Double user) {this.user = user;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}界面修改模型
package com.student.modal;public class ThemeValue {private int X1;private int Y1;private int X2;private int Y2;private String themeTitle;private String backgroundColor;public int getX1() {return X1;}public void setX1(int x1) {X1 = x1;}public int getY1() {return Y1;}public void setY1(int y1) {Y1 = y1;}public int getX2() {return X2;}public void setX2(int x2) {X2 = x2;}public int getY2() {return Y2;}public void setY2(int y2) {Y2 = y2;}public String getThemeTitle() {return themeTitle;}public void setThemeTitle(String themeTitle) {this.themeTitle = themeTitle;}public String getBackgroundColor() {return backgroundColor;}public void setBackgroundColor(String backgroundColor) {this.backgroundColor = backgroundColor;}}数据库后台实现
package com.student.Data;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;import com.mysql.jdbc.PreparedStatement;
import com.student.modal.StudentData;
import com.student.modal.User;public class Dao {/*** 变量定义*/private static Connection conn=null;private static String user="root";private static String password="root";private static String DRIVER="com.mysql.jdbc.Driver";private static String dataUrl="jdbc:mysql://localhost:3306/StudentSystem?useUnicode=true&characterEncoding=utf-8";/*** 加载驱动* 获取数据库连接*/public Dao() {try {Class.forName(DRIVER);if(conn==null) {conn=DriverManager.getConnection(dataUrl,user,password);}else {return;}} catch (Exception e) {e.printStackTrace();}}/*** * 关闭数据库*/public static void close() {try {conn.close();} catch (SQLException e) {e.printStackTrace();}}public static PreparedStatement prepareStatement(String sql) throws SQLException {PreparedStatement pstmt = null;new Dao();return pstmt = (PreparedStatement) conn.prepareStatement(sql);}/*** 用户登陆检验后台* @param user* @return* @throws SQLException*/public static User checkLogin(User user) throws SQLException {User reUser=null;String sql = "select * from user where user=? and password=?";PreparedStatement pstmt=Dao.prepareStatement(sql);pstmt.setDouble(1, user.getUser());pstmt.setString(2, user.getPassword());ResultSet rs=pstmt.executeQuery();if(rs.next()){reUser=new User();reUser.setUser(rs.getDouble(1));reUser.setPassword(rs.getString(2));}pstmt.close();return reUser;}/*** 搜索数据后台* @return* @throws SQLException*/public static ResultSet selectData() throws SQLException {String sql="select * from StudentData";PreparedStatement pstmt=Dao.prepareStatement(sql);return pstmt.executeQuery();}/*** * 删除数据后台* @param stu* @return* @throws SQLException */public static int deleteData(StudentData stu) throws SQLException{String sql="delete from StudentData where num=?";int i = 0; PreparedStatement pst = Dao.prepareStatement(sql);pst.setInt(1, stu.getNum());i=pst.executeUpdate(); return i;}/*** 更新数据后台* @param * @return* @throws SQLException*/public static int updateData(StudentData stu) throws SQLException {String sql="update StudentData set name=?,age=?,sex=?,math=?,java=?,c=?,english=? where num=?";PreparedStatement pst=Dao.prepareStatement(sql);pst.setString(1, stu.getName());pst.setInt(2, stu.getAge());pst.setString(3, stu.getSex());pst.setFloat(4, stu.getMath());pst.setFloat(5, stu.getJava());pst.setFloat(6,stu.getC()) ;pst.setFloat(7, stu.getEnglish());pst.setInt(8, stu.getNum());return pst.executeUpdate();}/*** 添加数据后台* @param stu* @return* @throws SQLException*/public static int addData(StudentData stu) throws SQLException {String sql="insert into StudentData values(null,?,?,?,?,?,?,?,?)";PreparedStatement pst=Dao.prepareStatement(sql);pst.setInt(1, stu.getNum());pst.setString(2, stu.getName());pst.setInt(3, stu.getAge());pst.setString(4, stu.getSex());pst.setFloat(5, stu.getMath());pst.setFloat(6, stu.getJava());pst.setFloat(7, stu.getC());pst.setFloat(8, stu.getEnglish());return pst.executeUpdate();}public static ResultSet search(StudentData stu) throws SQLException {String sql="select * from StudentData where num=?";PreparedStatement pstmt=Dao.prepareStatement(sql);pstmt.setInt(1, stu.getNum());return pstmt.executeQuery();}}程序中可能有些需要改进的地方，如果又发现，可以联系QQ：873634918，或者发送电子邮件到873634918@qq.com，小白菜会及时纠正错误，这个项目主要是入门swing(GUI图新化编程)写的一个入门项目，只实现了增删改查等操作，还有很多功能有待实现。
