Java GUI实现学生成绩管理系统

package edu.gzu.stuManager;  import java.awt.EventQueue;  import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane;  import java.awt.Toolkit;  import javax.swing.JTextField;  import edu.gzu.stuManager.Dao.UserLoginValid; import edu.gzu.stuManager.Domain.StudentInfo; import edu.gzu.stuManager.View.StudentMainView;  import java.awt.Choice; import java.awt.Font; import java.awt.Button; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent;  public class MainUI {   private JFrame frame;  private JTextField textField;  private JTextField textField_1;   /**  * Launch the application.  */  public static void main(String[] args) {  EventQueue.invokeLater(new Runnable() {   public void run() {   try {    MainUI window = new MainUI();    window.frame.setVisible(true);   } catch (Exception e) {    e.printStackTrace();   }   }  });  }   /**  * Create the application.  */  public MainUI() {  initialize();  }   /**  * Initialize the contents of the frame.  */  private void initialize() {  frame = new JFrame();  frame.setTitle("/u6210/u7EE9/u7BA1/u7406/u7CFB/u7EDF/uFF08/u767B/u5F55/uFF09");  frame.setIconImage(Toolkit.getDefaultToolkit().getImage(MainUI.class.getResource("/image/func_list7_privmana.png")));  frame.setBounds(400, 250, 450, 300);  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  frame.getContentPane().setLayout(null);    JLabel lblNewLabel = new JLabel("/u5B66/u751F/u6210/u7EE9/u7BA1/u7406/u7CFB/u7EDF/u7528/u6237/u767B/u5F55/uFF01");  lblNewLabel.setFont(new Font("宋体", Font.PLAIN, 16));  lblNewLabel.setBounds(111, 17, 287, 15);  frame.getContentPane().add(lblNewLabel);    JLabel lblNewLabel_1 = new JLabel("/u7528/u6237/u540D/uFF1A");  lblNewLabel_1.setFont(new Font("宋体", Font.PLAIN, 14));  lblNewLabel_1.setBounds(87, 67, 67, 15);  frame.getContentPane().add(lblNewLabel_1);    textField = new JTextField();  textField.setBounds(154, 64, 141, 21);  frame.getContentPane().add(textField);  textField.setColumns(10);    JLabel label = new JLabel("/u5BC6 /u7801/uFF1A");  label.setFont(new Font("宋体", Font.PLAIN, 14));  label.setBounds(87, 108, 67, 15);  frame.getContentPane().add(label);    textField_1 = new JTextField();  textField_1.setColumns(10);  textField_1.setBounds(154, 103, 141, 21);  frame.getContentPane().add(textField_1);    JLabel lblNewLabel_2 = new JLabel("/u6211/u7684/u8EAB/u4EFD/u662F/uFF1A");  lblNewLabel_2.setFont(new Font("宋体", Font.PLAIN, 14));  lblNewLabel_2.setBounds(105, 150, 97, 15);  frame.getContentPane().add(lblNewLabel_2);    final Choice choice = new Choice();  choice.setBounds(210, 147, 74, 21);  choice.add("学生");  choice.add("教师");  choice.add("系统管理员");  frame.getContentPane().add(choice);    Button button = new Button("/u767B/u5F55");  button.setBounds(87, 194, 76, 23);  button.addMouseListener(new MouseAdapter() {   @Override   public void mouseClicked(MouseEvent e) {   String user=textField.getText();   String password=textField_1.getText();   String shenfen=choice.getSelectedItem();   if(user.equals("")||user==null){    JOptionPane.showMessageDialog(frame, shenfen+":您好，帐号不能为空！");    return;   }else if(password.equals("")||password==null){    JOptionPane.showMessageDialog(frame, shenfen+":您好，密码不能为空！");    return;   }else{    StudentInfo stu=new StudentInfo(Integer.parseInt(user),     Integer.parseInt(password),shenfen);    UserLoginValid dao=new UserLoginValid();    String result=dao.isValid(stu);       if("登录成功！".equals(result)){    JOptionPane.showMessageDialog(frame,result);    StudentMainView index=new StudentMainView(stu);    JFrame frame2=index.getFrame();    frame2.setVisible(true);    frame.dispose();    }else{    JOptionPane.showMessageDialog(frame,result);    }      }   }  });  frame.getContentPane().add(button);    Button button_1 = new Button("/u53D6/u6D88");  button_1.setBounds(219, 194, 76, 23);  frame.getContentPane().add(button_1);      }  } 

package edu.gzu.stuManager.Dao;  import edu.gzu.stuManager.Domain.StudentInfo;  public class UserLoginValid {   public String isValid(StudentInfo stu){  int idnum=stu.getIdnum();  int password=stu.getPassword();  String idntify=stu.getIdentify();  String result=null;    if("学生".equals(idntify)){   if(idnum==1207010209&&password==123){   stu.setName("刘明胜 同学");   result="登录成功！";   }else{   result="学生帐号中不存在此用户，请确认身份后再次登录！";   }  }else if("教师".equals(idntify)){   if(idnum==1174386356&&password==123){   stu.setName("刘明胜 老师");   result="登录成功！";   }else{   result="教师帐号中不存在此用户，请确认身份后再次登录！";   }  }else if("系统管理员".equals(idntify)){   if(idnum==999999&&password==123){   stu.setName("系统管理员");   result="登录成功！";   }else{   result="系统管理员帐号中不存在此用户，请确认身份后再次登录！";   }  }      return result;  } } 

package edu.gzu.stuManager.Domain;  public class StudentInfo {  private int idnum;  private String name;  private int password;  private String identify;   public StudentInfo(int idnum,int password, String identify) {  super();  this.idnum = idnum;  this.password = password;  this.identify = identify;  }  public int getIdnum() {  return idnum;  }  public void setIdnum(int idnum) {  this.idnum = idnum;  }  public String getName() {  return name;  }  public void setName(String name) {  this.name = name;  }  public int getPassword() {  return password;  }  public void setPassword(int password) {  this.password = password;  }  public String getIdentify() {  return identify;  }  public void setIdentify(String identify) {  this.identify = identify;  }   } 

package edu.gzu.stuManager.View;  import java.awt.Button; import java.awt.Canvas; import java.awt.Choice; import java.awt.Color; import java.awt.Toolkit; import java.awt.event.ItemEvent; import java.awt.event.ItemListener;  import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField;  import edu.gzu.stuManager.Domain.StudentInfo;  public class StudentMainView{  private JFrame frame;  private JTextField textField;  private JTextField textField_1;  private JTextField textField_2;  private JTextField textField_3;   private StudentInfo info;   /**  * Create the frame.  * @wbp.parser.entryPoint  */  public StudentMainView(StudentInfo info) {  this.info=info;  }   public JFrame getFrame(){  initialize();  return frame;  }   /**  * Initialize the contents of the frame.  * @wbp.parser.entryPoint  */  public void initialize() {  frame = new JFrame();  frame.setTitle("/u6210/u7EE9/u7BA1/u7406/u7CFB/u7EDF/uFF08/u5B66/u751F/u7248/uFF09");  frame.setIconImage(Toolkit.getDefaultToolkit().getImage(StudentMainView.class.getResource("/image/func_list7_privmana.png")));  frame.setBounds(300,150, 550, 300);  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  frame.getContentPane().setLayout(null);    JLabel lblNewLabel = new JLabel("欢迎【"+info.getName()+"】登录学生成绩管理系统！");  lblNewLabel.setBounds(54, 10, 322, 15);  frame.getContentPane().add(lblNewLabel);    JPanel panel = new JPanel();  panel.setBounds(29, 52, 250, 180);  frame.getContentPane().add(panel);  panel.setLayout(null);    JLabel lblNewLabel_1 = new JLabel("/u6210/u7EE9/u6570/u636E");  lblNewLabel_1.setBounds(94, 10, 65, 15);  panel.add(lblNewLabel_1);    JLabel lblNewLabel_2 = new JLabel("/u5B66/u53F7/uFF1A");  lblNewLabel_2.setBounds(22, 37, 40, 15);  panel.add(lblNewLabel_2);    textField = new JTextField();  textField.setBounds(72, 35, 154, 21);  textField.setText(info.getIdnum()+"");  panel.add(textField);  textField.setColumns(10);    JLabel lblNewLabel_3 = new JLabel("/u59D3/u540D/uFF1A");  lblNewLabel_3.setBounds(22, 67, 44, 15);  panel.add(lblNewLabel_3);    textField_1 = new JTextField();  textField_1.setBounds(72, 66, 154, 21);  textField_1.setText(info.getName());  panel.add(textField_1);  textField_1.setColumns(10);    Canvas canvas = new Canvas();  canvas.setBackground(Color.BLUE);  canvas.setBounds(22, 100, 205, 1);  panel.add(canvas);    JLabel lblNewLabel_4 = new JLabel("/u8BFE/u7A0B/u540D");  lblNewLabel_4.setBounds(22, 116, 47, 15);  panel.add(lblNewLabel_4);    JLabel lblNewLabel_5 = new JLabel("/u6210/u7EE9");  lblNewLabel_5.setBounds(160, 116, 43, 15);  panel.add(lblNewLabel_5);    textField_2 = new JTextField();  textField_2.setBounds(22, 140, 123, 21);  panel.add(textField_2);  textField_2.setColumns(10);    textField_3 = new JTextField();  textField_3.setBounds(159, 140, 66, 21);  panel.add(textField_3);  textField_3.setColumns(10);    JPanel panel_1 = new JPanel();  panel_1.setBounds(317, 52, 110, 180);  frame.getContentPane().add(panel_1);  panel_1.setLayout(null);    JLabel lblNewLabel_6 = new JLabel("/u64CD/u4F5C/u83DC/u5355");  lblNewLabel_6.setBounds(15, 10, 54, 15);  panel_1.add(lblNewLabel_6);    Button button = new Button("/u7B2C/u4E00/u95E8/u8BFE/u7A0B");  button.setBounds(10, 31, 76, 23);  panel_1.add(button);    Button button_1 = new Button("/u4E0B/u4E00/u95E8/u8BFE/u7A0B");  button_1.setBounds(10, 61, 76, 23);  panel_1.add(button_1);    Button button_2 = new Button("/u4E0A/u4E00/u95E8/u8BFE/u7A0B");  button_2.setActionCommand("/u4E0A/u4E00/u95E8/u8BFE/u7A0B");  button_2.setBounds(10, 90, 76, 23);  panel_1.add(button_2);    Button button_3 = new Button("/u6700/u540E/u4E00/u95E8/u8BFE");  button_3.setBounds(10, 117, 76, 23);  panel_1.add(button_3);    Choice choice = new Choice();  choice.setBounds(10, 149, 76, 21);  choice.add("选择课程");  choice.add("高等数学");  choice.add("大学英语");  choice.add("马列主义");  choice.add("毛泽东思想");  choice.add("计算机图形学");  choice.addItemListener(new ItemListener() {     @Override   public void itemStateChanged(ItemEvent e) {   Object[] objs=e.getItemSelectable().getSelectedObjects();   for(Object ob:objs){ //   JOptionPane.showMessageDialog(frame, ob.toString());    if("高等数学".equals(ob.toString())){    textField_2.setText("高等数学");    textField_3.setText("98");    }else if("大学英语".equals(ob.toString())){    textField_2.setText("大学英语");    textField_3.setText("87");    }else if("马列主义".equals(ob.toString())){    textField_2.setText("马列主义");    textField_3.setText("88");    }else if("毛泽东思想".equals(ob.toString())){    textField_2.setText("毛泽东思想");    textField_3.setText("73");    }else if("计算机图形学".equals(ob.toString())){    textField_2.setText("计算机图形学");    textField_3.setText("97");    }   }         }  });    panel_1.add(choice);  }  }