目录版权声明：原创不易，本文禁止抄袭、转载，侵权必究！
- 一、需求开发文档
- 二、数据库设计文档
- 三、功能模块部分代码及效果展示
- 四、完整源码下载
- 五、作者Info
项目完整文件列表：
需求开发文档部分截图：
数据库设计文档部分截图：
数据库类：
package system_of_database;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBUtil {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
public Connection getConnection() throws ClassNotFoundException,
SQLException,InstantiationException,IllegalAccessException {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/exam_of_students?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false";
String user = "root";
String password = "root";
try {
Class.forName(driver);
con = DriverManager.getConnection(url,user,password);
return con;
} catch(Exception e) {
throw new SQLException("驱动错误或连接失败！");
}
}
考生登录部分代码如下：
public class LoginListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
lblMsg1.setText("");
lblMsg2.setText("");
user = userService.findUserByName(txtName.getText().trim());
if(user != null) {
if(user.getPassword().equals(new String(txtPwd.getPassword()))) {
Loginframe_Of_Students.this.setVisible(false);
new Mainframe_Of_Students();
} else {
lblMsg2.setText("密码错误!");
txtPwd.setText("");
}
} else {
lblMsg1.setText("该考生不存在 !");
}
}
}
考生登录效果如下：
管理员登录部分代码如下：
public class LoginListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
lblMsg1.setText("");
lblMsg2.setText("");
user = userService.findUserByName(txtName.getText().trim());
if(user != null) {
if(user.getPassword().equals(new String(txtPwd.getPassword()))) {
Loginframe_Of_Administration.this.setVisible(false);
new Mainframe_Of_Administration();
} else {
lblMsg2.setText("密码错误!");
txtPwd.setText("");
}
} else {
lblMsg1.setText("该管理员不存在 !");
}
}
}
public class ResetListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
txtName.setText("");
txtPwd.setText("");
}
}
管理员登录效果如下：
考生查询成绩部分代码如下：
private void showData() {
String id = txtId.getText();
String sql = "select id as 考生号,geography as 地理,chemistry as 化学,IT as 信息技术,History as 历史 ,Biology as 生物,mathematics as 数学,general_technique as 通用技术,physics as 物理,english as 英语,chinese as 语文,politics as 政治 from information_of_grade where id = '"+id+"'";
DBUtil db = new DBUtil();
try {
db.getConnection();
ResultSet rs = db.executeQuery(sql, null);
ResultSetmetaData rsmd = rs.getmetaData();
int colCount = rsmd.getColumnCount();
Vector title = new Vector(); //存放标题
for(int i = 1;i<=colCount;i++) {
title.add(rsmd.getColumnLabel(i));
}
Vector> data = new Vector>(); //存放表格数据
int rowCount = 0;
while(rs.next()) {
rowCount++;
Vector rowdata = new Vector(); //存放行数据
for(int i = 1;i<=colCount;i++) {
rowdata.add(rs.getString(i));
}
data.add(rowdata);
}
if(rowCount == 0) {
model.setDataVector(null, title);
} else {
model.setDataVector(data,title);
}
} catch(Exception ee) {
System.out.println(ee.toString());
JOptionPane.showMessageDialog(this, "系统出现异常错误。请检查数据库。系统即将推出！！！","错误",0);
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "查询到该考生信息");
}
考生查询成绩效果如下：
考生成绩导出部分代码如下：
public void saveFile() {
JFileChooser fc = new JFileChooser();
int rVal = fc.showSaveDialog(this);
if(rVal == JFileChooser.APPROVE_OPTION) {
String fileName = fc.getSelectedFile().getName();
String path = fc.getCurrentDirectory().toString();
try {
TableModel model = table.getModel();
FileWriter fw = new FileWriter(path + "/" + fileName);
for(int i=0; i < model.getColumnCount(); i++) {
fw.write(model.getColumnName(i) + "t");
}
fw.write("n");
for(int i=0; i< model.getRowCount(); i++) {
for(int j=0; j < model.getColumnCount(); j++) {
fw.write(model.getValueAt(i,j).toString()+"t");
}
fw.write("n");
}
fw.close();
} catch(Exception e) {
e.printStackTrace();
}
JOptionPane.showMessageDialog(null, "导出成功");
}
}
考生成绩导出效果如下：
考生修改密码部分代码如下：
public class listener_of_delete implements ActionListener{
public void actionPerformed(ActionEvent e){
String id = jtId.getText();
String code = new String(jpCode.getPassword());
String code1 = new String(jpCode1.getPassword());
DBUtil db = new DBUtil();
String sql = "update information_of_students set pwd = '"+code+"' where id = '"+id+"'";
if(code.equals(code1)){
try {
db.getConnection();
db.executeUpdate(sql,null);
} catch(Exception ee) {
System.out.println(ee.toString());
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "修改成功");
}
else{
JOptionPane.showMessageDialog(null, "两次密码不一样！");
}
}
}
考生修改密码效果如下：
管理员主面板部分代码如下：
public Mainframe_Of_Administration() {
super("Administration");
ImageIcon qstIcon = new ImageIcon("images.png");
this.setIconImage(qstIcon.getImage());
p = new JPanel();
setBak();
clipboard=getToolkit().getSystemClipboard();
Container c = getContentPane();
p.setOpaque(false);
c.add(p);
p.setLayout(null);
jbInsert = new JButton("添加考生信息");
jbDelete = new JButton("删除考生信息");
jbUpdate = new JButton("修改考生信息");
jbAdministration = new JButton("返回登录界面");
jbResetCode = new JButton("重置考生密码");
jbAdministration.addActionListener(new loginframe_of_administration());
jbDelete.addActionListener(new listener_of_delete());
jbInsert.addActionListener(new listener_of_insert());
jbUpdate.addActionListener(new listener_of_update());
jbResetCode.addActionListener(new listener_of_reset());
jbInsert.setBounds(0,20,120,25);
jbDelete.setBounds(0,55,120,25);
jbUpdate.setBounds(0,90,120,25);
jbAdministration.setBounds(0,125,120,25);
jbResetCode.setBounds(0,165,120,25);
p.add(jbInsert);
p.add(jbDelete);
p.add(jbUpdate);
p.add(jbAdministration);
p.add(jbResetCode);
this.add(p);
this.setLocation(200,100);
this.setSize(533,300);
this.setResizable(false);
this.setVisible(true);
this.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE);
}
管理员主面板效果如下：
添加考生信息部分代码如下：
public class listener_of_insert implements ActionListener{
public void actionPerformed(ActionEvent e){
DBUtil db = new DBUtil();
String preparedsql = "insert into information_of_grade(id,geography,chemistry,IT,history,biology,mathematics,general_technique,physics,english,chinese,politics)"+"values(?,?,?,?,?,?,?,?,?,?,?,?)";
try {
db.getConnection();
Object param[] = {jtId.getText(),jtGeo.getText(),jtChe.getText(),jtIT.getText(),jtHis.getText(),jtBio.getText(),jtMath.getText(),jtGen.getText(),jtPhy.getText(),jtEng.getText(),jtChi.getText(),jtPol.getText()};
db.executeUpdate(preparedsql, param);
} catch(Exception ee) {
System.out.println(ee.toString());
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "成功添加考生信息");
}
}
添加考生信息效果如下：
删除考生信息部分代码如下：
public class listener_of_delete implements ActionListener{
public void actionPerformed(ActionEvent e){
String id = jtId.getText();
DBUtil db = new DBUtil();
String sql = "delete from information_of_grade where id = '"+id+"'";
try {
db.getConnection();
db.executeUpdate(sql,null);
} catch(Exception ee) {
System.out.println(ee.toString());
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "成功删除考生信息");
}
}
删除考生信息效果如下：
修改考生信息部分代码如下：
public class listener_of_delete implements ActionListener{
public void actionPerformed(ActionEvent e){
String id = jtId.getText();
String code = new String(jpCode.getPassword());
String code1 = new String(jpCode1.getPassword());
DBUtil db = new DBUtil();
String sql = "update information_of_students set pwd = '"+code+"' where id = '"+id+"'";
if(code.equals(code1)){
try {
db.getConnection();
db.executeUpdate(sql,null);
} catch(Exception ee) {
System.out.println(ee.toString());
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "修改成功");
}
else{
JOptionPane.showMessageDialog(null, "两次密码不一样！");
}
}
}
修改考生信息效果如下：
重置考生密码部分代码如下：
public class listener_of_delete implements ActionListener{
public void actionPerformed(ActionEvent e){
String id = jtId.getText();
DBUtil db = new DBUtil();
String sql = "update information_of_students set pwd = '000000' where id = '"+id+"'";
try {
db.getConnection();
db.executeUpdate(sql,null);
} catch(Exception ee) {
System.out.println(ee.toString());
} finally {
db.closeAll();
}
JOptionPane.showMessageDialog(null, "重置成功");
}
}
重置考生密码效果如下：
学生会考成绩管理系统源码下载：
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