Java GUI实现学生成绩管理系统

学习java有一年多了，一直在做web方面的练习，在一个项目中发现需要用到GUI的相关知识，结果没法做出来，网上这方面的文章又不是很多，所有只好自己硬着头皮从头再学一遍了，不过学习后发现，其实GUI是非常有趣的，他并不像WEB程序一样依赖互联网，而且还有许多布局和android相差不是很大，这才发现自己竟又爱上GUI的开发了，不多说了，直接上代码吧，相信有过android或相关界面开发的都明白这其中的道理。

先看看效果吧

1.登录主界面

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);


 }

} 

2.登录验证逻辑

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;
 }
}

3.用户对象（这是一个简单bean）

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;
 }


}

4.登录成功后的主界面

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);
 }

}

这样就能轻松实现登录验证了，本打算从数据库读取数据的，由于时间关系，这里就简单的直接验证了，后续有时间的话再做其他的部分。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。