使用该代码，使用连接池可能会提高性能.尤其是在使用启用SSL的连接时.

With that code, it is likely that using a connection pool will improve performance. Especially if you are using SSL-enabled connections.

(当然，这假定您使用相同的池进行连接.)

(Of course, this assumes that you use the same pool for connecting.)

如果是，那是***的一个....

If yes which is best one ....

对于***，建议是不受欢迎的，但是我敢肯定，您可以找到一个列出并比较一些流行替代方案的网站.

Recommendations are Off-Topic for ***, but I'm sure you could find a website that lists and compares some popular alternatives.