将所有请求从一个端口转发到另一个 nginx

forwarding all requests from one port to another nginix

我能知道如何将来自端口 80 的所有请求转发到 443 吗? 我的代码:

server {
        listen 80;

        root /var/www/html/;
        index index.html index.htm index.php;
        server_name myexample.com;

      location / {

              proxy_pass http://myexample.com:443/;

      }
}

server {

        listen 443;

        root /var/www/html/;
        index index.html index.html index.php;
        server_name myexample.com;
}

但请求http://myexample.com are not redirecting to https://myexample.com

将 HTTP 重定向到 HTTPS

server {
    listen 80;        
    server_name myexample.com;
    return  301 https://$host$request_uri;
}

server {
    listen 443;
    root /var/www/html/;
    index index.html index.html index.php;
    server_name myexample.com;
}