当站点域名配置完SSL证书后，如果要强制开启HTTPS，可以在站点配置文件中加上：

#HTTP_TO_HTTPS_START
if ($server_port !~ 443){rewrite ^(/.*)$ https://$host$1 permanent;
}
#HTTP_TO_HTTPS_END

附上完整的配置完SSL证书，强制开启HTTPS的站点配置文件配置信息：

server
{listen 80;listen 443 ssl http2;server_name www.xxxxxx.com;index index.php index.html index.htm default.php default.htm default.html;root /www/wwwroot/test_program/public;#SSL-START SSL相关配置，请勿删除或修改下一行带注释的404规则#error_page 404/404.html;#HTTP_TO_HTTPS_STARTif ($server_port !~ 443){rewrite ^(/.*)$ https://$host$1 permanent;}#HTTP_TO_HTTPS_ENDssl_certificate    /www/server/panel/vhost/cert/www.xxxxxx.com/fullchain.pem;ssl_certificate_key    /www/server/panel/vhost/cert/www.xxxxxx.com/privkey.pem;ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;ssl_ciphers EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;ssl_prefer_server_ciphers on;ssl_session_cache shared:SSL:10m;ssl_session_timeout 10m;add_header Strict-Transport-Security "max-age=31536000";error_page 497  https://$host$request_uri;#SSL-END#ERROR-PAGE-START  错误页配置，可以注释、删除或修改#error_page 404 /404.html;#error_page 502 /502.html;#ERROR-PAGE-END#PHP-INFO-START  PHP引用配置，可以注释或修改include enable-php-73.conf;#PHP-INFO-END#REWRITE-START URL重写规则引用,修改后将导致面板设置的伪静态规则失效include /www/server/panel/vhost/rewrite/www.xxxxxx.com.conf;#REWRITE-END#禁止访问的文件或目录location ~ ^/(\.user.ini|\.htaccess|\.git|\.env|\.svn|\.project|LICENSE|README.md){return 404;}#一键申请SSL证书验证目录相关设置location ~ \.well-known{allow all;}#禁止在证书验证目录放入敏感文件if ( $uri ~ "^/\.well-known/.*\.(php|jsp|py|js|css|lua|ts|go|zip|tar\.gz|rar|7z|sql|bak)$" ) {return 403;}location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)${expires      30d;error_log /dev/null;access_log /dev/null;}location ~ .*\.(js|css)?${expires      12h;error_log /dev/null;access_log /dev/null;}access_log  /www/wwwlogs/www.xxxxxx.com.log;error_log  /www/wwwlogs/www.xxxxxx.com.error.log;
}