Java课程设计——学生信息管理系统(源码)

Java课程设计——学生信息管理系统(源码)项目简介该项目可以分为三个模块:登录模块、主页面模块、信息储存模块。本系统完成了基本所需功能,界面清晰,操作简单又实用,基本满足了学校对学生信息的增添、查询、修改和删除等功能,且具有登录系统使该系统具有一定的安全性,大大减少了操作人员和用户的工作负担,提高了学生管理的工作效率和学校的信息化的水平。功能介绍该项目可以分为三个模块:登录模块、主页面模块、信息储存模块。登录模块实现系统的登录,且具有一键清除的功能;主页面也就是整个系统的核心,包括了对学生信息的增添、查询、修改和删除等功能,还有退出系统的功能

项目简介

该项目可以分为三个模块:登录模块、主页面模块、信息储存模块。本系统完成了基本所需功能,界面清晰,操作简单又实用,基本满足了学校对学生信息的增添、查询、修改和删除等功能,且具有登录系统使该系统具有一定的安全性,大大减少了操作人员和用户的工作负担,提高了学生管理的工作效率和学校的信息化的水平。

功能介绍

该项目可以分为三个模块:登录模块、主页面模块、信息储存模块。登录模块实现系统的登录,且具有一键清除的功能;主页面也就是整个系统的核心,包括了对学生信息的增添、查询、修改和删除等功能,还有退出系统的功能;由于还没学习数据库,所以运用的是文本文件的输入和输出的方法来储存添加的学生信息。

功能模块

在这里插入图片描述

注意:memu.java文件中需提前新建一个txt文件并在代码中添加txt文件的路径

代码:

Enter.java
登录界面

package xuesheng;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

class LoginCheck{ 
   
    private String name;
    private String password;
    public LoginCheck(String name,String password){ 
   
        this.name=name;
        this.password=password;
    }
    public boolean equals(){ 
   
        if("root".equals(name)&&"123456".equals(password)){ 
   
            return true;
        }else{ 
   
            return false;
        }
    }
};
class ActionHandle{ 
   
    private JFrame frame=new JFrame("学生信息管理系统");
    private JTextField name=new JTextField();//设置文本框
    private JPasswordField pass=new JPasswordField();
    private JLabel but1=new JLabel("用户名:");
    private JLabel but2=new JLabel("密 码:");
    private JButton but3=new JButton("登录");
    private JButton but4=new JButton("重置");
    
    public ActionHandle(){ 
   
        but3.addActionListener(new ActionListener(){ 
   
            public void actionPerformed(ActionEvent e){ 
   
                if(e.getSource()==but3){ 
   
                    String sname=name.getText();
                    String spass=new String(pass.getPassword());
                    LoginCheck log=new LoginCheck(sname,spass);
                    if(log.equals()){ 
   
                        try { 
   
                            new Menu();
                        } catch (Exception e1) { 
   
                            
                            e1.printStackTrace();
                        }
                        frame.setVisible(false);
                        
                    }else{ 
   
                        JOptionPane.showMessageDialog(null, "登录失败,错误的用户名或密码!");
                    }
                }
            }                   
        });     
        but4.addActionListener(
new ActionListener(){ 
   
            public void actionPerformed(ActionEvent e){ 
   
                if(e.getSource()==but4){ 
   
                    name.setText("");
                    pass.setText("");
                }
            }

        });
        frame.setLayout(null);
        but1.setBounds(80, 40 , 80,30);
        name.setBounds(140,42, 120, 25);    //
        but2.setBounds(80, 80 , 80,30);
        pass.setBounds(140,82, 120, 25);
        but3.setBounds(130, 150 , 60,30);
        but4.setBounds(210, 150 , 60,30);
        frame.setSize(400,330);     
        frame.setLocation(300, 200);
        frame.add(but1);
        frame.add(name);
        frame.add(pass);
        frame.add(but2);
        frame.add(but3);
        frame.add(but4);
        frame.setVisible(true);
    }
}
public class  Enter{ 
   
    public static void main(String[] args) { 
   
        
        new ActionHandle();
    }

}

Menu.java
主界面

package xuesheng;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
public class Menu { 
   
    private JButton but1 = new JButton("增加数据"); // 按钮
    private JButton but2 = new JButton("删除数据");
    private JButton but3 = new JButton("修改数据");
    private JButton but4 = new JButton("查看数据");
    private JButton but0 = new JButton("退出系统");
    private JButton but5 = new JButton("显示");
    private JButton clear = new JButton("清空");
    private JTextField number = new JTextField();// 文本框
    private JTextField name = new JTextField();
    private JTextField dor = new JTextField();
    private JTextField address = new JTextField();
    private JTextField sex = new JTextField();
    private JTextField date = new JTextField();
    private JTextField pol = new JTextField();
    private JTextField phone = new JTextField();

    private JTextArea show = new JTextArea(16, 30); 
    private JLabel lab1 = new JLabel("姓名:");// 标签
    private JLabel lab2 = new JLabel("学院:");
    private JLabel num = new JLabel("学号:");
    private JLabel lab4 = new JLabel("性别:");
    private JLabel lab5 = new JLabel("专业班级:");
    private JLabel lab6 = new JLabel("出生日期:");
    private JLabel lab7 = new JLabel("政治面貌:");
    private JLabel lab8 = new JLabel("联系方式:");
    // private JLabel lab3 = new JLabel("请输入内容,完成操作。");

    private JFrame frame = new JFrame("信息管理系统"); // 框架
    private JFrame frame1 = new JFrame("显示信息");

    Hashtable<String, Person> has = new Hashtable<String, Person>();// 哈希表,加密,文件乱码 
    File file = new File("新建文件.txt");// 注意:新建一个文件
    public Menu() { 
   
        if (!file.exists()) { 
   
            try { 
   
                ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file));// 把一个实例的对象以文件的形式保存到磁盘上。 out.writeObject(has);
                out.close();
            } catch (IOException e) { 
   
            }
        }
        but1.addActionListener(new ActionListener() { 
    // 增加,内部类//进行某项操作时触发功能
			public void actionPerformed(ActionEvent e) { 
   //用于接收操作事件的侦听器接口
				if (e.getSource() == but1) { 
   
					but3.setEnabled(false);//使but3这个按钮变灰不可点击了
					String number1 = number.getText();
					if (number1.length() == 12) { 
   
						try { 
   
							ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));//读回对象
							has = (Hashtable) in.readObject();							                       in.close();
						} catch (Exception e1) { 
   
						}
                 					} else { 
   
						JOptionPane.showMessageDialog(null, "请输入12位数字的学号");//提示框显示
					}
					//
					if (number1.length() == 12) { 
   
					if (has.containsKey(number1)) { 
   						JOptionPane.showMessageDialog(null, "该生信息已存在,请到修改页面修改!");
					} else { 
   
						String name1 = name.getText();
						String dor1 = dor.getText();
						String address1 = address.getText();
						String sex1 = sex.getText();
						String date1 = date.getText();
						String pol1 = pol.getText();
						String phone1 = phone.getText();
						Person per = null;
						per = new Person(number1, name1, dor1, address1, sex1, date1, pol1, phone1);
						has.put(number1, per);// ???
						try { 
   
							ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file));
							out.writeObject(has);
							out.close();
                       JOptionPane.showMessageDialog(null, "添加成功!");
						} catch (Exception e1) { 
   }
					}
					}
				}
			}
});
		clear.addActionListener(new ActionListener() { 
    // 清空
			public void actionPerformed(ActionEvent e) { 
   
				if (e.getSource() == clear) { 
   //获得事件所作用的对象

					number.setText(null);
					dor.setText(null);
					name.setText(null);
					address.setText(null);
					sex.setText(null);
					date.setText(null);
					pol.setText(null);
					phone.setText(null);
				}
			}
		});
		but2.addActionListener(new ActionListener() { 
    // 删除
			public void actionPerformed(ActionEvent e) { 
   
				if (e.getSource() == but2) { 
   
					but3.setEnabled(false);
					String number1 = number.getText();
					if (number1.length() == 12) { 
   
						try { 
   
							ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
							has = (Hashtable) in.readObject();
							in.close();
						} catch (Exception e1) { 
   
						}
					} else { 
   
						JOptionPane.showMessageDialog(null, "请输入12位数字的学号");
					}
					if (has.containsKey(number1)) { 
   
						has.remove(number1);
						ObjectOutputStream out = null;
						JOptionPane.showMessageDialog(null, "删除成功");
						try { 
   
							out = new ObjectOutputStream(new FileOutputStream(file));
							//out.writeObject(has);
							out.close();
						} catch (IOException ex) { 
   
							Logger.getLogger(Menu.class.getName()).log(Level.SEVERE, null, ex);//记录当前类可能发生的异常
						}
					} else { 
   
						JOptionPane.showMessageDialog(null, "学号不存在");
					}
				}
			}
		});

		but3.addActionListener(new ActionListener() { 
    // 修改
			public void actionPerformed(ActionEvent e) { 
   
				//String number2 = number.getText();
				if (e.getSource() == but3) { 
   
					but3.setEnabled(false);
				
					String number1 = number.getText();
					String name1 = name.getText();
					String dor1 = dor.getText();
					String address1 = address.getText();
					String sex1 = sex.getText();
					String date1 = date.getText();
					String pol1 = pol.getText();
					String phone1 = phone.getText();
					Person per = new Person(number1, name1, dor1, address1, sex1, date1, pol1, phone1);
					has.put(number1, per);
					if (number1.length() == 12) { 
   
						try { 
   
							ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
							has = (Hashtable) in.readObject();
							in.close();
						} catch (Exception e1) { 
   
						}
					JOptionPane.showMessageDialog(null, "修改成功");
					
					try { 
   
						ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file));
						out.writeObject(has);
						out.close();
					} catch (Exception e1) { 
   
					}
				}
			}
		}});

		but4.addActionListener(new ActionListener() { 
    // 查看
			public void actionPerformed(ActionEvent e) { 
   

				if (e.getSource() == but4) { 
   
					but3.setEnabled(false);
					String number1 = number.getText();
					if (number1.length() == 12) { 
   
						if (has.containsKey(number1)) { 
   
							try { 
   
								ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
								has = (Hashtable) in.readObject();
								in.close();
							} catch (Exception e1) { 
   
							}
							Person per = (Person) has.get(number1);
							name.setText(per.getName());
							dor.setText(per.getDor());
							address.setText(per.getAddress());
							sex.setText(per.getSex());
							date.setText(per.getDate());
							pol.setText(per.getPol());
							phone.setText(per.getPhone());

							but3.setEnabled(true);
						} else { 
   
							JOptionPane.showMessageDialog(null, "学号不存在");
						}
					} else { 
   
						JOptionPane.showMessageDialog(null, "请输入12位数字的学号");
					}
				}
			}

		});
        but5.addActionListener(new ActionListener() { 
   
            public void actionPerformed(ActionEvent e) { 
   
                if (e.getSource() == but5) { 
   
                    frame1.setVisible(true);
                    try { 
   
                        ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
                        has = (Hashtable) in.readObject();
                        in.close();
                    } catch (Exception ee) { 
   
                    }
                    if (has.isEmpty()) { 
   
                        show.append("目前还没有学生的信息记录!\n");
// append(s:String)向文本域的文本追加字符串,简单的说就像system.out.println() 
} else { 
   
                                            
                    for (Enumeration enu = has.elements(); enu.hasMoreElements();) { 
   
//存入内存的内容如果不经过遍历是显示不出来的
                            Person per = (Person) enu.nextElement();
                            String str = " <学号>:" + per.getNum() + "\n" + " <姓名>:" + per.getName() + "\n" + " <学院>:"
                                    + per.getDor() + "\n" + " <性别>:" + per.getAddress() + "\n" + " <专业班级>:"
                                    + per.getSex() + "\n" + "<出生日期>:" + per.getDate() + "\n" + " <政治面貌>:"
                                    + per.getPol() + "\n" + " <电话>:" + per.getPhone() + "\n" + "\n";
                            show.append(str);
                        }
                        String str2 = "------------------------------结束---------------------------------------------------"
                                + "\n";
                        show.append(str2);
                    }
                }
            }

        });
        but0.addActionListener(new ActionListener() { 
   
            public void actionPerformed(ActionEvent e) { 
   
                if (e.getSource() == but0) { 
   
                    frame.setVisible(false);
                    new ActionHandle();
                }
            }
        });
        frame.setLayout(null);
        but1.setBounds(30, 35, 90, 25);
        but2.setBounds(30, 75, 90, 25);
        but3.setBounds(30, 115, 90, 25);
        but4.setBounds(30, 155, 90, 25);
        but0.setBounds(240, 430, 100, 25); // setBounds(x,y,width,height);
        num.setBounds(150, 30, 70, 25);
        lab1.setBounds(150, 65, 70, 25);
        lab2.setBounds(150, 100, 70, 25);//
        lab4.setBounds(150, 135, 70, 25);
        lab5.setBounds(150, 170, 70, 25);
        lab6.setBounds(150, 205, 70, 25);
        lab7.setBounds(150, 240, 70, 25);
        lab8.setBounds(150, 275, 70, 25);
        number.setBounds(230, 30, 90, 25);
        name.setBounds(230, 65, 90, 25);
        dor.setBounds(230, 100, 90, 25);
        address.setBounds(230, 135, 90, 25);
        sex.setBounds(230, 170, 90, 25);
        date.setBounds(230, 205, 90, 25);
        pol.setBounds(230, 240, 90, 25);
        phone.setBounds(230, 275, 90, 25);
        // lab3.setBounds(130, 390, 250, 25);
        clear.setBounds(250, 310, 60, 25);
        but5.setBounds(150, 310, 60, 25);
        frame.add(lab1);
        frame.add(lab2);
        //frame.add(lab3);
        frame.add(lab4);
        frame.add(lab5);
        frame.add(lab6);
        frame.add(lab7);
        frame.add(lab8);
        frame.add(num);
        frame.add(number);
        frame.add(name);
        frame.add(dor);
        frame.add(address);
        frame.add(sex);
        frame.add(date);
        frame.add(pol);
        frame.add(phone);
        frame.add(clear);
        frame.add(but1);
        frame.add(but2);
        frame.add(but3);
        frame.add(but4);
        frame.add(but0);
        JScrollPane scroll = new JScrollPane(show);
            frame1.add(scroll,BorderLayout.CENTER);      
        frame.add(but5);
        frame.setSize(400, 500); // 页面大小
        frame1.setBounds(200, 200, 400, 300);
        frame.setLocation(300, 200);
        frame.setVisible(true);
        frame1.setVisible(false);
    }
}

Person.java
个人信息:

package xuesheng;

import java.io.Serializable;
public class Person implements Serializable { 
   //使用Serializable类,可以使对象被序列化,用于持久化(保存)对象。
	private String num;
	private String name;
	private String dor;
        private String address;
        private String sex;
        private String date;
        private String pol;
        private String phone;
	//public Person(){}
	public Person(String num,String name,String dor,String address,String sex,String date,String pol,String phone ){ 
   
		this.num=num;
		this.name=name;
                this.dor=dor;
		this.address=address;
                this.sex=sex;
                this.date=date;
                this.pol=pol;
                this.phone=phone;
        }
        public void setNum(String num){ 
   
		this.num=num;
	}
	public String getNum(){ 
   
		return num;
	} 
	public void setName(String name){ 
   
		this.name=name;
	}
	public String getName(){ 
   
		return name;
	}
	public void setDor(String dor){ 
   
		this.dor=dor;
	}
	public String getDor(){ 
   
		return dor;
	}
	public void setAddress(String address){ 
   
		this.address=address;
	}
	public String getAddress(){ 
   
		return address;
	}
	public void setSex(String sex){ 
   
		this.sex=sex;
	}
	public String getSex(){ 
   
		return sex;
	}
	public void setDate(String date){ 
   
		this.date=date;
	}
	public String getDate(){ 
   
		return date;
	}
	public void setPol(String pol){ 
   
		this.pol=pol;
	}
	public String getPol(){ 
   
		return pol;
	}
	public void setPhone(String phone){ 
   
		this.phone=phone;
	}
	public String getPhone(){ 
   
		return phone;
	}       
}

部分效果图:
登录账号:root
密码:123456
代码中可自行更改
在这里插入图片描述
在这里插入图片描述

今天的文章Java课程设计——学生信息管理系统(源码)分享到此就结束了,感谢您的阅读。

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