mysql实现长连接池

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

import java.sql.Connection;
import java.sql.SQLException;

public class MySQLConnectionPool {
    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.setMinimumIdle(5);
        config.setConnectionTimeout(30000);
        dataSource = new HikariDataSource(config);
    }

    public static Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }

    public static void closeDataSource() {
        if (dataSource != null) {
            dataSource.close();
        }
    }

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