基于Java+MySQL+GUI的学生信息管理系统
源码编号：F-A01
项目类型：Java SE项目（awt+swing）
用户类型：单角色（只有管理员）
主要技术：java、awt、swing等技术
开发工具：Eclipse
运行工具：Eclipse/MyEclipse/IDEA都可以，eclipse最兼容
数 据 库：MySQL5.7以上
数据库表数量：1张表
视图数量：5个左右
项目简介：本系统主要有对学生信息的增删改查操作功能，源码开源免费
项目内容
项目骨架
数据库表
1.主界面
2.添加学生信息
3.更改学生信息
部分核心代码
package edu.ymkz.frame;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.swing.Box;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.AbstractTableModel;
/**
* @author Administrator 学生管理系统 实现： crud所有功能
*/
public class Demo{
public static void main(String args[]) {
// 创建一个面板对象
MyJFrame mf = new MyJFrame();
}
}
// 定义一个我自己的主界面
class MyJFrame extends JFrame implements ActionListener {
JTable jt;
MyJTable mjt;
// 必要地分布板块
JPanel jpup, jpdown, jpcenter;
// 实现数据的 增删查改即crud操作
JButton[] button = new JButton[4];
// 用来辅助查找模块的框框
JTextField text;
JScrollPane jsp = null;
/*
* 构造函数 功能： 实现窗口的初始化
*/
MyJFrame() {
mjt = new MyJTable();
jt = new JTable(mjt);
// jt.setModel(mjt);
jpup = new JPanel();
jpdown = new JPanel();
jpcenter = new JPanel();
text = new JTextField(14);
button[0] = new JButton(" 查询 ");
button[1] = new JButton(" 添加 ");
button[2] = new JButton(" 修改 ");
button[3] = new JButton(" 删除 ");
for (int i = 0; i < 4; i++)
button[i].addActionListener(this);
jpup.add(new JLabel("用户信息"));
jpup.add(text);
jpup.add(button[0]);
for (int i = 1; i < 4; i++)
jpdown.add(button[i]);
jt.setBackground(Color.CYAN);
jsp = new JScrollPane(jt);
jpcenter.add(jsp);
// 设置一些布局 borderLaRyou
this.add(jpup, BorderLayout.NORTH);
this.add(jpcenter, BorderLayout.CENTER);
this.add(jpdown, BorderLayout.SOUTH);
// 设置窗口的标题
this.setTitle("学生信息管理系统");
// 设置窗口的尺寸
this.setSize(500, 300);
// 窗口的尺寸不可改变
// this.setResizable(false);
// 设置窗口是否可见
this.setVisible(true);
// 设置窗口的注销模式
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
int i = 0;
for (i = 0; i < 4; i++)
if (e.getSource() == button[i])
break;
String cmd = text.getText().toString().trim();
switch (i) {
// 查询
case 0:
if (cmd.isEmpty()) {
JOptionPane.showMessageDialog(button[0], "请输入用户名");
mjt = new MyJTable();
} else
mjt = new MyJTable(cmd);
jt.setModel(mjt);
break;
// 添加
case 1:
AddJFrame myAdd = new AddJFrame(this, true);
mjt = new MyJTable();
jt.setModel(mjt);
break;
// 修改
case 2:
// 需要得到我们点中的行列号
int rownum = this.jt.getSelectedRow();
if (-1 == rownum) {
JOptionPane.showMessageDialog(this, "请选中你要修改人");
return;
} else {
String name = (String) mjt.getValueAt(rownum, 0);
UpdataJFrame Uj = new UpdataJFrame(this, true, name);
mjt = new MyJTable();
jt.setModel(mjt);
}
break;
// 删除
case 3:
int row = this.jt.getSelectedRow();
if (-1 == row) {
JOptionPane.showMessageDialog(this, "请选中你要修改人");
return;
} else {
String name = (String) mjt.getValueAt(row, 1);
Delete det = new Delete(this, name.trim(), true);
}
mjt = new MyJTable();
jt.setModel(mjt);
break;
// 啥也不干
default:
break;
}
}
}
// 定义一个自己的table类
class MyJTable extends AbstractTableModel {
// sql的几个变量
Connection ct = null;
PreparedStatement ps = null;
ResultSet rs = null;
Vector rowdata, colName;
// 非带参数的构造函数，用于初始化
MyJTable() {
this.func("", false);
}
// 带参数的构造函数，用于查询
MyJTable(String name) {
this.func(name, true);
};
public void func(String name, boolean tag) {
String sql;
try {
// 加载上jdbc_odbc驱动
Class.forName("com.mysql.jdbc.Driver");
// 连接sql
ct = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/db_stu?useUnicode=true&characterEncoding=utf-8&useSSL=false",
"root", "123456");
if (!tag) {
sql = new String("select * from stu");
ps = ct.prepareStatement(sql);
} else {
sql = new String("Select * from stu where Stuname=?");
ps = ct.prepareStatement(sql);
ps.setString(1, name);
}
rs = ps.executeQuery();
/*
* 设置表单的属性
*/
colName = new Vector();
rowdata = new Vector();
String[] ss = { "学号", "名字", "性别", "年龄", "家庭地址", "系别" };
for (int i = 0; i < 6; i++)
colName.add(ss[i]);
while (rs.next()) {
Vector hang = new Vector();
for (int i = 1; i <= 6; i++) {
if (4 == i)
hang.add(rs.getInt(i));
else {
String st = new String(
(rs.getString(i)).getBytes("gbk"), "gb2312");
hang.add(st);
}
}
rowdata.add(hang);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
// 关闭一些窗口
try {
if (rs != null)
rs.close();
if (ps != null)
ps.close();
if (ct != null)
ct.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 返回它的行数
@Override
public int getRowCount() {
// TODO Auto-generated method stub
return this.rowdata.size();
}
// 返回它的列数
@Override
public int getColumnCount() {
// TODO Auto-generated method stub
return this.colName.size();
}
// 返回该表单的内容
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
// TODO Auto-generated method stub
return ((Vector) this.rowdata.get(rowIndex)).get(columnIndex);
}
@Override
public String getColumnName(int column) {
// TODO Auto-generated method stub
return (String) this.colName.get(column);
}
}
// 定义一个添加数据的界面
class AddJFrame extends JDialog implements ActionListener {
// 填写信息的空格
private String sex = null;
JTextField[] jt = new JTextField[5];
JButton[] jb = new JButton[2];
// 单选按钮
JRadioButton[] jradio = new JRadioButton[2];
// 组合单选按钮
ButtonGroup group;
// 用于设置 盒式布局 BoxLayout
Box[] mybox = new Box[4];
JPanel jp, jp1;
// SQL几个常用的变量类型
Connection ct = null;
PreparedStatement ps = null;
public AddJFrame(Frame Father, boolean Model) {
// 采用模式对话框
super(Father, Model);
for (int i = 0; i < 5; i++)
jt[i] = new JTextField(10);
jb[0] = new JButton("确认");
jb[0].addActionListener(this);
jb[1] = new JButton("取消");
jb[1].addActionListener(this);
jradio[0] = new JRadioButton("男");
jradio[0].addActionListener(this);
jradio[1] = new JRadioButton("女");
jradio[1].addActionListener(this);
// 设置水平
mybox[0] = Box.createVerticalBox();
mybox[0].add(Box.createVerticalStrut(15));
mybox[0].add(new JLabel("学号："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("名字："));
mybox[0].add(Box.createVerticalStrut(20));
mybox[0].add(new JLabel("性别："));
mybox[0].add(Box.createVerticalStrut(25));
mybox[0].add(new JLabel("年龄："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("家庭住址："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("系别："));
mybox[0].add(Box.createVerticalStrut(10));
// 设置另一边的水平
mybox[1] = Box.createVerticalBox();
mybox[1].add(Box.createVerticalStrut(18));
mybox[1].add(jt[0]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[1]);
mybox[1].add(Box.createVerticalStrut(8));
jp = new JPanel();
// 单选群
group = new ButtonGroup();
group.add(jradio[0]);
group.add(jradio[1]);
jp.add(jradio[0]);
jp.add(jradio[1]);
mybox[1].add(jp);
mybox[1].add(Box.createVerticalStrut(5));
mybox[1].add(jt[2]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[3]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[4]);
mybox[1].add(Box.createVerticalStrut(8));
// 按钮部分
jp1 = new JPanel();
jp1.add(jb[0], BorderLayout.EAST);
jp1.add(jb[1], BorderLayout.WEST);
mybox[2] = Box.createHorizontalBox();
mybox[2].add(mybox[0]);
mybox[2].add(Box.createHorizontalStrut(10));
mybox[2].add(mybox[1]);
this.add(mybox[2], BorderLayout.NORTH);
this.add(jp1, BorderLayout.SOUTH);
init();
}
// 显示板块部分
public void init() {
this.setTitle("添加学生信息");
this.setBackground(Color.magenta);
this.setBounds(400, 300, 300, 300);
this.setVisible(true);
// this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 将数据写入数据库
if (e.getSource() == jb[0]) {
// 对写入的数据进行处理
try {
Class.forName("com.mysql.jdbc.Driver");
ct = DriverManager
.getConnection(
"jdbc:mysql://localhost:3306/db_stu?useUnicode=true&characterEncoding=utf-8&useSSL=false",
"root", "123456");
ps = ct.prepareStatement("insert into stu values(?,?,?,?,?,?)");
for (int i = 1, j = 0; i <= 6; i++) {
if (3 == i) {
// 去掉多余的空格，但是这里存在一个小bug（合理的处理为正则表达式）
ps.setString(i, this.getSex().trim());
// ps.setInt(i,);
} else if (4 == i) {
String tem = jt[j].getText().toString().trim();
int value = Integer.valueOf(tem).intValue();
ps.setInt(i, value);
++j;
} else {
ps.setString(i, jt[j].getText().toString().trim());
++j;
}
}
int i = ps.executeUpdate();
if (1 == i)
JOptionPane.showMessageDialog(this, "添加成功！");
else
JOptionPane.showMessageDialog(this, "添加失败！");
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally {
// 关闭数据库的一些调用函数
try {
if (ps != null)
ps.close();
if (ct != null)
ct.close();
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
this.dispose();
} else if (e.getSource() == jb[0])
// 释放点该窗口, 退出该版面
this.dispose();
else if (jradio[0].isSelected()) {
// 将名字改为男
this.setSex("男");
} else if (jradio[1].isSelected()) {
// 将名字改为女
this.setSex("女");
}
}
public String getSex() {
return this.sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
// 定义一个修改数据的界面
class UpdataJFrame extends JDialog implements ActionListener {
// 填写信息的空格
private String sex = null;
JTextField[] jt = new JTextField[5];
JButton[] jb = new JButton[2];
// 单选按钮
JRadioButton[] jradio = new JRadioButton[2];
// 组合单选按钮
ButtonGroup group;
// 用于设置 盒式布局 BoxLayout
Box[] mybox = new Box[4];
JPanel jp, jp1;
// SQL几个常用的变量类型
Connection ct = null;
PreparedStatement ps = null;
public UpdataJFrame(Frame Father, boolean Model, String name) {
// 采用模式对话框
super(Father, Model);
for (int i = 0; i < 5; i++)
jt[i] = new JTextField(10);
// 设置为仅仅读取
jt[0].setEditable(false);
// 下方的几个按钮
jb[0] = new JButton("确认");
jb[0].addActionListener(this);
jb[1] = new JButton("取消");
jb[1].addActionListener(this);
jradio[0] = new JRadioButton("男");
jradio[0].addActionListener(this);
jradio[1] = new JRadioButton("女");
jradio[1].addActionListener(this);
// 设置水平
mybox[0] = Box.createVerticalBox();
mybox[0].add(Box.createVerticalStrut(15));
mybox[0].add(new JLabel("学号："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("名字："));
mybox[0].add(Box.createVerticalStrut(20));
mybox[0].add(new JLabel("性别："));
mybox[0].add(Box.createVerticalStrut(25));
mybox[0].add(new JLabel("年龄："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("家庭住址："));
mybox[0].add(Box.createVerticalStrut(10));
mybox[0].add(new JLabel("系别："));
mybox[0].add(Box.createVerticalStrut(10));
// 设置另一边的水平
mybox[1] = Box.createVerticalBox();
mybox[1].add(Box.createVerticalStrut(18));
mybox[1].add(jt[0]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[1]);
mybox[1].add(Box.createVerticalStrut(8));
jp = new JPanel();
// 单选群
group = new ButtonGroup();
group.add(jradio[0]);
group.add(jradio[1]);
jp.add(jradio[0]);
jp.add(jradio[1]);
mybox[1].add(jp);
/*
* group =new ButtonGroup(); group.add(jradio[0]); group.add(jradio[1]);
* mybox[1].add(group); 此处需要改变的 东西，改成combox来进行，或者直接改成一样的文本框也许
*/
mybox[1].add(Box.createVerticalStrut(5));
mybox[1].add(jt[2]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[3]);
mybox[1].add(Box.createVerticalStrut(8));
mybox[1].add(jt[4]);
mybox[1].add(Box.createVerticalStrut(8));
// 按钮部分
jp1 = new JPanel();
jp1.add(jb[0], BorderLayout.EAST);
jp1.add(jb[1], BorderLayout.WEST);
mybox[2] = Box.createHorizontalBox();
mybox[2].add(mybox[0]);
mybox[2].add(Box.createHorizontalStrut(10));
mybox[2].add(mybox[1]);
Connect(name);
this.add(mybox[2], BorderLayout.NORTH);
this.add(jp1, BorderLayout.SOUTH);
init();
}
// 显示板块部分
public void init() {
this.setTitle("修改学生信息");
this.setBackground(Color.magenta);
this.setBounds(400, 300, 300, 300);
this.setVisible(true);
// this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void Connect(String name) {
ResultSet rs = null;
// 驱动加载
try {
Class.forName("com.mysql.jdbc.Driver");
ct = DriverManager
.getConnection(
"jdbc:mysql://localhost:3306/db_stu?useUnicode=true&characterEncoding=utf-8&useSSL=false",
"root", "123456");
String sql = new String("Select * from Stu where stuId=?");
ps = ct.prepareStatement(sql);
ps.setString(1, name);
rs = ps.executeQuery();
while (rs.next()) {
int cnt = 1;
for (int i = 1; i <= 6; i++) {
if (4 == i) {
// 整数转化为String
jt[i - cnt].setText(String.valueOf(rs.getInt(i)));
} else {
String st = null;
try {
st = new String((rs.getString(i)).getBytes("gbk"),
"gb2312");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (i == 3) {
if (st.equals("男")) {
jradio[0].setSelected(true);
this.setSex("男");
} else if (st.equals("女")) {
jradio[1].setSelected(true);
this.setSex("女");
} else
JOptionPane.showMessageDialog(this, "性别处出现乱码");
cnt++;
} else
jt[i - cnt].setText(st);
}
}
}
} catch (ClassNotFoundException | SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (rs != null)
rs.close();
if (ps != null)
ps.close();
if (ct != null)
ct.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 将数据写入数据库
if (e.getSource() == jb[0]) {
// 对写入的数据进行处理
try {
// 驱动加载
Class.forName("com.mysql.jdbc.Driver");
ct = DriverManager
.getConnection(
"jdbc:mysql://localhost:3306/db_stu?useUnicode=true&characterEncoding=utf-8&useSSL=false",
"root", "123456");
ps = ct.prepareStatement("Update stu Set Stuname=?,StuSex=?,StuAge=?,StuJg=?,StuDept=? where StuId=?");
// 回来修改........
// 名字
ps.setString(1, jt[1].getText().toString().trim());
// 性别
ps.setString(2, this.getSex().trim());
// 年龄
String tem = jt[2].getText().toString().trim();
int value = Integer.valueOf(tem).intValue();
ps.setInt(3, value);
// 籍贯
ps.setString(4, jt[3].getText().toString().trim());
// 系别
ps.setString(5, jt[4].getText().toString().trim());
// 学号
ps.setString(6, jt[0].getText().toString().trim());
// 更新
int i = ps.executeUpdate();
if (1 == i)
JOptionPane.showMessageDialog(this, "添加成功！");
else
JOptionPane.showMessageDialog(this, "添加失败！");
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally {
// 关闭数据库的一些调用函数
try {
if (ps != null)
ps.close();
if (ct != null)
ct.close();
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
this.dispose();
} else if (e.getSource() == jb[0])
// 释放点该窗口, 退出该版面
this.dispose();
else if (jradio[0].isSelected()) {
// 将名字改为男
this.setSex("男");
} else if (jradio[1].isSelected()) {
// 将名字改为女
this.setSex("女");
}
}
public String getSex() {
return this.sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
// 删除界面类
class Delete extends JDialog implements ActionListener {
// 设置为确认和取消两个按钮
JButton[] button = new JButton[2];
JPanel jp;
JTable jt;
JScrollPane jsp = null;
// 设置为一个删除的表单
MyJTable mytable;
// SQL几个常用的变量类型
Connection ct = null;
PreparedStatement ps = null;
ResultSet rs = null;
private String name;
public Delete(Frame ower, String name, boolean Model) {
super(ower, Model);
this.setName(name);
jp = new JPanel();
button[0] = new JButton("确定");
button[0].addActionListener(this);
button[1] = new JButton("取消");
button[1].addActionListener(this);
jp.add(button[0]);
jp.add(button[1]);
// 设置一个我的列表的界面
mytable = new MyJTable(name);
jt = new JTable(mytable);
JScrollPane jsp = new JScrollPane(jt);
this.add(jp, BorderLayout.SOUTH);
this.add(jsp, BorderLayout.NORTH);
this.setTitle("删除界面");
this.setSize(400, 250);
this.setResizable(false);
this.setVisible(true);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (e.getSource() == button[0]) {
try {
// 加载上jdbc_odbc驱动
Class.forName("com.mysql.jdbc.Driver");
// 连接sql
ct = DriverManager
.getConnection(
"jdbc:mysql://localhost:3306/db_stu?useUnicode=true&characterEncoding=utf-8&useSSL=false",
"root", "123456");
String sql = new String("delete from Stu where Stuname=?");
ps = ct.prepareStatement(sql);
ps.setString(1, this.getName().trim());
int i = ps.executeUpdate();
if (1 == i)
JOptionPane.showMessageDialog(this, "删除成功");
else
JOptionPane.showMessageDialog(this, "删除失败了啦！");
} catch (ClassNotFoundException | SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally {
try {
if (ps != null)
ps.close();
if (ct != null)
ct.close();
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
this.dispose();
}
}