java学生成绩数据库

import java.sql.*;

public class StudentScoreDB {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/student_db";
        String username = "root";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, username, password)) {
            String sql = "SELECT * FROM student_scores";
            try (Statement stmt = conn.createStatement();
                 ResultSet rs = stmt.executeQuery(sql)) {
                while (rs.next()) {
                    int id = rs.getInt("id");
                    String studentName = rs.getString("student_name");
                    int score = rs.getInt("score");
                    System.out.println("ID: " + id + ", Student Name: " + studentName + ", Score: " + score);
                }
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}