捕获Java SQLExceptions

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class DatabaseExample {
    public static void main(String[] args) {
        Connection connection = null;
        Statement statement = null;
        try {
            // 加载数据库驱动
            Class.forName("com.mysql.cj.jdbc.Driver");
            // 获取数据库连接
            connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "username", "password");
            // 创建 Statement 对象
            statement = connection.createStatement();
            // 执行 SQL 查询
            String sql = "SELECT * FROM users";
            statement.executeQuery(sql);
        } catch (ClassNotFoundException e) {
            System.out.println("数据库驱动未找到");
            e.printStackTrace();
        } catch (SQLException e) {
            System.out.println("数据库操作异常");
            e.printStackTrace();
        } finally {
            // 关闭资源
            try {
                if (statement != null) {
                    statement.close();
                }
                if (connection != null) {
                    connection.close();
                }
            } catch (SQLException e) {
                System.out.println("关闭资源时发生异常");
                e.printStackTrace();
            }
        }
    }
}