nginx - https redirection problem?

Question

Problem background:

 无论是输入http://...，还是输入域名，都能跳转至https://...，
 

Question: There are many ways, some are written in the file that configures port 80, some are written in .htaccess, and some set meta/refresh on the page.
Which one is more cost-effective?

Answer 1

It is recommended to write port 80
1. No need for meta and refresh

Answer 2

Port 80, make a jump

Answer 3

The most cost-effective method is to use nginx’s rewrite to configure it