本项目为一款基于Java开发的学生管理系统，采用图形界面设计（GUI），并集成了MySQL数据库技术，便于高效管理学生信息。
```java
录入 = new JButton(录入);
查询 = new JButton(查询);
删除 = new JButton(删除);
修改 = new JButton(修改);
显示 = new JButton(显示);
录入.addActionListener(new InputAct());
查询.addActionListener(new InquestAct());
修改.addActionListener(new ModifyAct());
删除.addActionListener(new DeleteAct());
显示.addActionListener(new ShowAct());
修改.setEnabled(false);
p1 = new JPanel();
p1.add(new JLabel(学号:,JLabel.CENTER));
p1.add(学号);
p2 = new JPanel();
p2.add(new JLabel(姓名:,JLabel.CENTER));
p2.add(姓名);
p3 = new JPanel();
p3.add(new JLabel(性别:,JLabel.CENTER));
p3.add(男);
p3.add(女);
p4 = new JPanel();
p4.add(new JLabel(专业:,JLabel.CENTER));
p4.add(专业);
p5 = new JPanel();
p5.add(new JLabel(年级:,JLabel.CENTER));
p5.add(年级);
p6 = new JPanel();
p6.add(new JLabel(出生日期:,JLabel.CENTER));
p6.add(出生);
pv = new JPanel();
pv.setLayout(new GridLayout(6,1));
pv.add(p1);
pv.add(p2);
pv.add(p3);
pv.add(p4);
pv.add(p5);
pv.add(p6);
ph = new JPanel();
ph.add(录入);
ph.add(查询);
ph.add(修改);
ph.add(删除);
ph.add(显示);
file = new File(学生信息.txt);
学生散列表 = new Hashtable();
if (!file.exists()) {
try {
FileOutputStream out = new FileOutputStream(file);
ObjectOutputStream objectOut = new ObjectOutputStream(out);
objectOut.writeObject(学生散列表);
objectOut.close();
out.close();
} catch (IOException e) {}
}
Container con=getContentPane();
con.setLayout(new BorderLayout());
con.add(lb, BorderLayout.WEST);
con.add(pv, BorderLayout.CENTER);
con.add(ph, BorderLayout.SOUTH);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setBounds(100, 100, 600, 300);
setVisible(true);
Statement stmt;
ResultSet rs;
public static void main(String[] args) {
StudentManager ff = new StudentManager();
}
// 添加学生信息的 MySQL 操作
public class InputAct implements ActionListener{
public void actionPerformed(ActionEvent e){
修改.setEnabled(false);
String number=;
number=学号.getText();
if (number.length() > 0){
if(学生散列表.containsKey(number)){
String warning = 该生信息已存在，请到修改页面修改！;
JOptionPane.showMessageDialog(null,warning,警告,JOptionPane.WARNING_MESSAGE);
} else {
String m=该生信息将被录入！;
int ok=JOptionPane.showConfirmDialog(null,m,确认,JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE);
if(ok==JOptionPane.YES_OPTION) {
try {
Class.forName(org.gjt.mm.mysql.Driver);
} catch(java.lang.ClassNotFoundException e11) {
System.out.println(Class not found exception occir.Message is:);
System.out.println(e11.getMessage());
}
try{
PreparedStatement prepstmt1;
String url = jdbc:mysql://localhost/test?user=root&password=0&useUnicode=true&&characterEncoding=8859_1;
Connection conn=null;
try {
conn=DriverManager.getConnection(url,root,0);
} catch(Exception ex) {
ex.printStackTrace();
}
String sql1=INSERT INTO students(student_id,name,sex,major,grade,birth)+VALUES(?,?,?,?,?,?);
prepstmt1=(PreparedStatement)conn.prepareStatement(sql1);
prepstmt1.setString(1,学号.getText());
prepstmt1.setString(2,姓名.getText());
if (男.isSelected()){
prepstmt1.setString(3,男);
} else{
prepstmt1.setString(3,女);
}
prepstmt1.setString(4,专业.getText());
prepstmt1.setString(5,年级.getText());
prepstmt1.setString(6,出生.getText());
prepstmt1.executeUpdate();
} catch(SQLException e1) {
System.out.println(SQL Exception occur.Message is:);
System.out.println(e1.getMessage());
}
} else{
String warning=必须输入学号！;
JOptionPane.showMessageDialog(null,warning,警告,JOptionPane.WARNING_MESSAGE);
}
}
} else{
String warning = 必须输入学号！;
JOptionPane.showMessageDialog(null,warning,警告,JOptionPane.WARNING_MESSAGE);
}
}
}
```
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