mysql不关闭连接

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class MySQLConnectionExample {
    private static HikariDataSource dataSource;

    static {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl("jdbc:mysql://localhost:3306/mydatabase");
        config.setUsername("username");
        config.setPassword("password");
        config.setMaximumPoolSize(10);
        dataSource = new HikariDataSource(config);
    }

    public static void main(String[] args) {
        try (Connection connection = dataSource.getConnection();
             PreparedStatement statement = connection.prepareStatement("SELECT * FROM mytable");
             ResultSet resultSet = statement.executeQuery()) {

            while (resultSet.next()) {
                // 处理结果集
            }
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            dataSource.close();
        }
    }
}