数据模型
小学生、中学生、大学生
共有属性：
学号、姓名、出生年月、性别、班级
小学生：英语、数学、语文成绩
中学生：英语 数学 语文地理、历史
大学生：专业、高等数学、程序设计
增加、删、改、查
统计：按照课程、分数段、班级等统计
总分排序输出
数据持久存储
读取、保存
java图形界面swing 连接sql server数据库 实现学生课程成绩管理系统
如有帮助，望采纳
String url = "jdbc:sqlserver://localhost:1433;DatabaseName=student_course_grade";
String username = "sa";
String password = "123";
Connection connection = null;
PreparedStatement ps=null;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JPanel jPanel2;
private javax.swing.JPasswordField jPasswordField1;
private javax.swing.JScrollPane jScrollPane1;
private JTextField jTextField1;
private javax.swing.JToggleButton jToggleButton1;
public guanlidenglu() {
initComponents();
}
private void connectdb() {
try {
Class.forName( "com.microsoft.sqlserver.jdbc.SQLServerDriver" );
connection = DriverManager.getConnection(url, username, password );
}
catch ( ClassNotFoundException cnfex ) {
System.err.println(
"装载 JDBC/ODBC 驱动程序失败。" );
cnfex.printStackTrace();
System.exit( 1 );
}
catch ( SQLException sqlex ) {
System.err.println( "无法连接数据库" );
sqlex.printStackTrace();
System.exit( 1 );
}
}
private void initComponents() {
jPanel2 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jToggleButton1 = new javax.swing.JToggleButton();
jButton3 = new javax.swing.JButton();
jPasswordField1 = new javax.swing.JPasswordField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel2.setBackground(new java.awt.Color(120, 150, 190));
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "学生成绩管理系统", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("微软雅黑", 1, 24), new java.awt.Color(255, 255, 255))); // NOI18N
jPanel2.setAutoscrolls(true);
jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
jLabel1.setText("账号：");
jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
jLabel2.setText("密码：");
jTextField1.setColumns(20);
jScrollPane1.setViewportView(jTextField1);
jButton1.setText("登录");
jButton2.setText("注册");
jToggleButton1.setText("退出");
jToggleButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jToggleButton1ActionPerformed(evt);
}
});
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
try {
jButton1ActionPerformed(evt);
} catch (SQLException e) {
e.printStackTrace();
}
}
});
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setText("帮助");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
}
});
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jButton3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jToggleButton1))
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(162, 162, 162)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 98, Short.MAX_VALUE))
.addGap(18, 18, 18)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(jButton1)
.addGap(85, 85, 85)
.addComponent(jButton2))
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jPasswordField1, javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING)))
.addContainerGap(171, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(69, 69, 69)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(51, 51, 51)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(36, 36, 36)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jPasswordField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(41, 41, 41)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 118, Short.MAX_VALUE)
.addComponent(jToggleButton1))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton3)
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(113, 113, 113)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(290, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(44, 44, 44)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(441, Short.MAX_VALUE))
);
pack();
}
private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) throws SQLException {
String Ausername=jTextField1.getText();
String Apassword=jPasswordField1.getText();
connectdb();
String sql="select adminName,adminPassword from admin where adminName='"+Ausername+"' and adminPassword='"+Apassword+"'";
ps=connection.prepareStatement(sql);
ResultSet rs=ps.executeQuery();
if(rs.next()) {
guanlidenglu.this.setVisible(false);
guanli Guanli=new guanli();
Guanli.setVisible(true);
}
else {
JOptionPane.showMessageDialog(null,"密码或用户名错误！！！！");
}
connection.close();
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(null,"请联系BOSS申请管理员！！！");
}
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(guanlidenglu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(guanlidenglu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(guanlidenglu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(guanlidenglu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new guanlidenglu().setVisible(true);
}
});
}
Connection conn = null;
Statement stmt = null;
PreparedStatement pstm =null;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton10;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton8;
private javax.swing.JButton jButton9;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
private javax.swing.JTextField jTextField1;
private javax.swing.JToggleButton jToggleButton1;
private javax.swing.JToggleButton jToggleButton2;
public chengjitongji() {
initComponents();
}
private void connectdb() {
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=student_course_grade","sa", "123");
} catch (SQLException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
private void initComponents() {
jPanel2 = new javax.swing.JPanel();
jToggleButton1 = new javax.swing.JToggleButton();
jToggleButton2 = new javax.swing.JToggleButton();
jButton1 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton10 = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel2.setBackground(new java.awt.Color(120, 150, 190));
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "学生成绩管理系统", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("微软雅黑", 1, 24), new java.awt.Color(255, 255, 255))); // NOI18N
jPanel2.setAutoscrolls(true);
jToggleButton1.setText("退出");
jToggleButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jToggleButton1ActionPerformed(evt);
}
});
jToggleButton2.setText("返回");
jToggleButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jToggleButton2ActionPerformed(evt);
}
});
jButton1.setText("最高分");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane1.setViewportView(jTable1);
jButton8.setText("刷新");
jButton8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton8ActionPerformed(evt);
}
});
jButton9.setText("平均分");
jButton9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton9ActionPerformed(evt);
}
});
jButton10.setText("查询");
jButton10.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton10ActionPerformed(evt);
}
});
jButton2.setText("最低分");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addGap(0, 699, Short.MAX_VALUE)
.addComponent(jToggleButton2)
.addGap(18, 18, 18)
.addComponent(jToggleButton1))
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jScrollPane1)
.addContainerGap())
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 228, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jButton10)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton8)
.addGap(54, 54, 54))))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addGap(15, 15, 15)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton10)
.addComponent(jButton1)
.addComponent(jButton9)
.addComponent(jButton8)
.addComponent(jButton2))
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 383, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jToggleButton1)
.addComponent(jToggleButton2))
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(47, 47, 47)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(282, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(50, 50, 50)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(359, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String text=jTextField1.getText();
try {
connectdb();
String sql = "select top 1 grade.courseId,courseName,exameTime,cname,student.CNo,score from course,grade,student where courseName='"+text+"' and course.courseId=grade.courseId and student.CNo=grade.CNo order by score desc";
pstm = conn.prepareStatement(sql);
ResultSet rs = pstm.executeQuery();
int count = 0;
while (rs.next()) {
count++;
}
rs = pstm.executeQuery();
Object[][] info = new Object[count][6];
count = 0;
BufferedWriter bufferedWriter=new BufferedWriter(new FileWriter("F:\\最高分.txt"));
while (rs.next()) {
bufferedWriter.write("课程编号："+Integer.valueOf(rs.getInt("courseId"))+"--"+"课程名字："+rs.getString("courseName")+"--"+"考试时间："+rs.getString("exameTime")+"--"+"学生姓名："+rs.getString("cname")+"--"+"学号："+rs.getString("CNo")+"--"+"最高分："+Float.valueOf(rs.getFloat("score")));
bufferedWriter.newLine();
info[count][0] = Integer.valueOf(rs.getInt("courseId"));
info[count][1] = rs.getString("courseName");
info[count][2] = rs.getString("exameTime");
info[count][3] = rs.getString("cname");
info[count][4] = rs.getString("CNo");
info[count][5] = Float.valueOf(rs.getFloat("score"));
count++;
}
bufferedWriter.close();
String[] title = { "课程编号", "课程名称", "考试时间", "学生姓名", "学号", "分数"};
this.jTable1 = new JTable(info, title);
this.jScrollPane1.getViewport().add(jTable1);
conn.close();
} catch (SQLException | IOException e) {
e.printStackTrace();
}
finally {
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
}
private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {
try {
connectdb();
String sql = "select * from grade";
pstm = conn.prepareStatement(sql);
ResultSet rs = pstm.executeQuery();
int count = 0;
while (rs.next()) {
count++;
}
rs = pstm.executeQuery();
Object[][] info = new Object[count][4];
count = 0;
while (rs.next()) {
info[count][0] = Float.valueOf(rs.getFloat("courseId"));
info[count][1] = rs.getString("CNo");
info[count][2] = rs.getString("exameTime");
info[count][3] = Float.valueOf(rs.getFloat("score"));
count++;
}
参考一下：
https://blog.csdn.net/m0_58941767/article/details/121453162
自己写的话额少了，很多回答都是直接给你链接或者找给你的，没有是自己写的
其实这类题型实例挺多参考的，建议还是自己尝试一二。
需求 是控制台 javaSe还是javaweb