清空mysql连接池

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

public class DatabaseConnectionPool {
    private static HikariDataSource dataSource;

    static {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl("jdbc:mysql://localhost:3306/mydatabase");
        config.setUsername("username");
        config.setPassword("password");
        config.setMaximumPoolSize(20);
        config.setConnectionTimeout(30000);
        config.setIdleTimeout(600000);
        config.setMaxLifetime(1800000);

        dataSource = new HikariDataSource(config);
    }

    public static void main(String[] args) {
        // 获取连接
        try (Connection connection = dataSource.getConnection()) {
            // 使用连接进行数据库操作
        } catch (SQLException e) {
            e.printStackTrace();
        }

        // 清空连接池
        dataSource.close();
        dataSource = new HikariDataSource(config);
    }
}