bourse_p2/app/utility/MongoConnection.php

<?php
namespace app\utility;

use MongoDB\Client;

class MongoConnection
{
    const QUOTE_TOP_DATA_HASH_KEY = 'QUOTE_TOP_DATA_HASH';
    private static $client = null;

    public static function getClient() {
        if (self::$client === null) {
            $uri = "mongodb://".env('MONGODB.USERNAME').':'.env('MONGODB.PASSWORD').'@'.env('MONGODB.HOST').":".env('MONGODB.PORT');
            self::$client = new Client($uri, [
                'maxPoolSize' => 200, // 设置连接池最大连接数
                'minPoolSize' => 10,   // 设置连接池最小连接数（可选）
                'serverSelectionTimeoutMS' => 5000, // 超时设置（防止请求挂死） 单位是毫秒
            ]);
        }

        return self::$client;
    }
}