如何在控制台应用程序中使用json对象将数据插入数据库

import java.sql.*;

public class InsertData {
    public static void main(String[] args) {
        // 建立数据库连接
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "root";
        String password = "password";
        try (Connection conn = DriverManager.getConnection(url, username, password)) {
            // 创建SQL语句
            String sql = "INSERT INTO mytable (name, age) VALUES (?, ?)";

            // 将数据转换为JSON对象
            String name = "John";
            int age = 25;
            String jsonData = "{\"name\": \"" + name + "\", \"age\": " + age + "}";

            // 执行SQL语句
            try (PreparedStatement stmt = conn.prepareStatement(sql)) {
                stmt.setString(1, name);
                stmt.setInt(2, age);
                stmt.executeUpdate();
                System.out.println("Data inserted successfully.");
            } catch (SQLException e) {
                e.printStackTrace();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}